Evidence suggests the various signs and consequences of skin aging may be connected to cumulative oxidative damage incurred throughout one's lifetime. Poor diet, lack of exercise, and exposure to ultra violet light all cause oxidative damage. For example, ultra violet light is known to generate reactive oxygen species (ROS), such as superoxide, singlet oxygen, hydroxyl radicals, and hydrogen peroxide, in the skin. These ROS are known to degrade collagen in the skin and to decrease the ability of fibroblasts to produce collagen.
Collagen is the primary protein of connective tissue, which includes cartilage, bone, tendon, teeth, and skin. Collagen (in a pre-processed form called pro-collagen) is assembled in cells and consists of three polypeptides wound around each other in a triple helix form, which is stabilized by intrachain disulfide bonds. After the helical molecule is assembled and modified in the cell it is secreted into the extracellular medium and further processed to a mature form (tropocollagen).
Matured collagen molecules assemble into fibrils in the extracellular space in a staggered, parallel, fashion wherein the molecules are stabilized in this fibril pattern by covalent cross-linking bonds between the N-terminus of one molecule and the C-terminus of another. The collagen fibrils are interlaced and branched in skin.
Indeed, these interlaced, branched collagen fibrils provide the skin with its shape and firmness, while another skin protein, elastin, provides skin with its elasticity. Elastin coils and recoils like a spring and accounts for the elasticity of structures such the skin, blood vessels, heart, lungs, intestines, tendons, and ligaments. Elastin is normally not produced by the human body after puberty and aging begin.
Like all other proteins in the human body, collagen and elastin are constantly being degraded. Enzymes that degrade collagen and elastin are known as matrix metalloproteases (MMPs). These enzymes can be stimulated by ROS. Some known MMPs include collagenase, elastase, MMP-1, and MMP-9. Collagenase is an enzyme produced by fibroblast like synoviocytes that degrades collagen. Elastase degrades elastin. MMP-1 cleaves fibrillar collagens, such as types I, II, and III, resulting in denatured collagens (gelatins) that are further degraded by MMP-9, which degrades laminin and type IV collagen, components of the basement membrane. Thus, these MMP enzymes are involved in the reduction of collagen and elastin in the skin, which leads to the appearance of fine lines, wrinkles, age spots, and sagging skin.
Like loss of collagen and elastin due to oxidative damage from ROS and MMPs, loss of moisture contributes to skin aging. Indeed, the skin's capacity to retain water decreases with age, making the skin more vulnerable to dehydration and wrinkling. Lipids and fats in the skin help combat water loss by providing an epidermal barrier. This barrier also hinders the growth of bacteria, which can cause skin irritation and sensitivity, both of which contribute to aging of skin.
Therefore, a formulation containing oxidizable or antioxidant nutrients to combat ROS, oxidative damage, and loss of collagen and elastin, as well as agents that hydrate the skin or increase the synthesis of lipids in the skin, would be useful for improving the appearance, texture, and moisture of the skin and maintaining general skin health.
Skin aging is directly related to many causes including oxidative stress of the skin, loss of moisture from the skin, and degradation of important proteins in skin such as collagen and elastin. The present invention is a formulation comprising a unique combination of ingredients including amino acids, carbohydrates, plant extracts, and vitamins, and a method of using these ingredients to improve the moisture, texture, and appearance of the skin. The unique formulations of the present invention work by increasing the synthesis of skin proteins, such as collagen or elastin, and/or by preventing or slowing the degradation of such proteins. Additionally, the formulations of the present invention have the unique ability to increase the synthesis and/or prevent or slow the degradation of lipids in the skin, which aids in skin moisture. The formulations of the present invention can be topically administered, orally administered, administered by injection, peritoneally administered, or any combination thereof.
Accordingly, in one embodiment, the present invention provides a formulation comprising pollen (Royal Jelly), wolfberry extract, Chinese Angelica extract, grape seed extract, carotenoids, rose hips, Vitamin C or derivatives thereof, biotin, Vitamin E or derivatives thereof, alpha-lipoic acid, hyaluronic acid, glycine, gelatin, glucosamine, pickled ume or combinations thereof.
Another embodiment of the invention is a method of improving the appearance, texture, or moisture of skin using a formulation comprising pollen (Royal Jelly), wolfberry extract, Chinese Angelica extract, grape seed extract, Lutein, rose hips, Vitamin C or derivatives thereof, biotin, Vitamin E or derivatives thereof, alpha-lipoic acid, hyaluronic acid, glycine, gelatin, glucosamine, pickled ume or combinations thereof.
In another embodiment, the invention is a method of stimulating the formation of collagen and elastin in the skin using a formulation comprising pollen (Royal Jelly), wolfberry extract, Chinese Angelica extract, grape seed extract, Lutein, rose hips, Vitamin C or derivatives thereof, biotin, Vitamin E or derivatives thereof, alpha-lipoic acid, hyaluronic acid, glycine, gelatin, glucosamine, pickled ume or combinations thereof.
In an alternative embodiment, the invention is a method of decreasing the degradation of collagen and elastin in the skin using a formulation comprising pollen (Royal Jelly), wolfberry extract, Chinese Angelica extract, grape seed extract, Lutein, rose hips, Vitamin C or derivatives thereof, biotin, Vitamin E or derivatives thereof, alpha-lipoic acid, hyaluronic acid, glycine, gelatin, glucosamine, pickled ume or combinations thereof.
In a further embodiment of the invention, the invention is a method of increasing lipid synthesis in skin comprising using formulations of the present invention comprising (Royal Jelly), wolfberry extract, Chinese Angelica extract, grape seed extract, Lutein, rose hips, Vitamin C or derivatives thereof, biotin, Vitamin E or derivatives thereof, alpha-lipoic acid, hyaluronic acid, glycine, gelatin, glucosamine, pickled ume or combinations thereof.
In an alternative embodiment, the invention is a method of decreasing the degradation of lipids in the skin using formulations of the present invention comprising (Royal Jelly), wolfberry extract, Chinese Angelica extract, grape seed extract, Lutein, rose hips, Vitamin C or derivatives thereof, biotin, Vitamin E or derivatives thereof, alpha-lipoic acid, hyaluronic acid, glycine, gelatin, glucosamine, pickled ume or combinations thereof.
It is to be understood that this invention is not limited to the particular methodology or protocols described herein. Further, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this invention belongs. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention, which will be limited only by the claims.
The present invention is based on the surprising discovery that unique combinations of the following ingredients, described more fully in Table 1, improve skin moisture, texture, and appearance: pollen (Royal Jelly), wolfberry extract, Chinese Angelica extract, grape seed extract, rose hips, Pickled ume, Carotenoids, biotin, Vitamin C or derivatives thereof, Vitamin E or derivatives thereof, alpha-lipoic acid, hyaluronic acid, glycine, and glucosamine. More specifically, the formulations of the present invention improve skin moisture, texture, and appearance by increasing the synthesis of skin proteins, such as collagen or elastin, and/or by preventing or slowing the degradation of such proteins. Additionally, the formulations of the present invention have the unique ability to increase the synthesis and/or prevent or slow the degradation of lipids in the skin, which aids in skin moisture.
Formulations of the Present Invention
The formulations of the present invention are designed to offer a combination of ingredients, rather than just herbal extracts. Specifically, formulations of the present invention comprise a combination of vitamins, amino acids, natural products, and plant extracts. These unique combinations of ingredients target a number of key enzymes involved in skin health, and also modulate cellular activity of skin cells to promote improved skin health. In particular, various ingredients comprising the formulations of the present invention stimulate synthesis and/or inhibit degradation of collagen and/or elastin. For example, Cherokee Rose Hips and Chinese Angelica extract are potent inducers of collagen synthesis, alone or in combination, while other compounds, such as Royal Jelly and Pickled Ume, are effective at inhibiting the activity of MMPs.
As used herein “stimulating collagen (or elastin) synthesis” is used in its broadest sense and refers to the production of collagen or elastin, its incorporation into collagen- or elastin-containing tissue (including, e.g., the synthesis, processing, cross-linking, secretion, and assembly of collagen fibrils or elastin fibers) and the presence of healthy collagen- or elastin-containing tissue. “Stimulating” or “inducing” collagen or elastin synthesis, therefore, refers to the ability of a formulation described herein to positively affect the production of collagen or elastin. Stimulating collagen or elastin synthesis may be brought about by the ability of the formulations described herein to promote steps, such as biochemical steps, leading to the formation of collagen fibrils or elastin fibers.
“Inhibiting degradation of collagen (or elastin),” refers to the ability of a formulation described herein to preserve existing healthy collagen- or elastin-containing tissue, for example, by inhibiting a MMP which inhibits collagen or elastin or by replenishing collagen or elastin to tissue wherein collagen or elastin is broken down by natural processes or disease-associated processes.
As used herein “stimulating lipid synthesis” is used in its broadest sense and refers to the production of lipids in the skin. “Stimulating” or “inducing” lipid synthesis, therefore, refers to the ability of a formulation described herein to positively affect the production of lipids in the skin. Stimulating lipid synthesis may be brought about by the ability of the formulations described herein to promote steps, such as biochemical steps, leading to the formation of lipids in the skin.
The formulations of the present invention are based on combinations of ingredients including plant extracts which are in extract ratios of 20:1, and wherein the extracts are produced using water extraction methods commonly used to prepare herbal extracts in Traditional Chinese Medicine. See Wang et al., “Extraction and Chromatography-Mass Spectromic Analysis of the Active Principles from Selected Chinese Herbs and Other Medicinal Plants.” 2003. Am. J. Chin. Med. 31(6):927-44.
In one embodiment of the present invention, the formulation comprises the following active ingredients in the following amounts: Royal Jelly (pollen), 30-1500 mg; Wolfberry extract (20:1 extract ratio), 30-500 mg; Chinese Angelica extract (20:1 extract ratio), 30-500 mg; Grape seed extract, 100-150 mg; Lutein, 2-5 mg; Cherokee Rose Hips, 30-500 mg; Vitamin C or derivatives thereof, 40-70 mg; Biotin, 600-900 mg; Vitamin E or derivatives thereof, 3-7 mg; α-lipoic acid, 1-4 mg; hyaluronic acid, 4-60 mg; glycine, 30-200 mg; glucosamine 5-300 mg; and gelatin, 30-500 mg.
In another embodiment, a formulation of the present invention comprises the following active ingredients in the following amounts: Royal jelly (pollen), 30-1500 mg; Wolfberry extract (20:1 extract ratio), 30-500 mg; and Chinese Angelica extract (20:1 extract ratio), 30-500 mg. Alternatively, this formulation can additionally contain one or more of the following active ingredients in the following amounts: Grape seed extract, 100-150 mg; Lutein, 2-5 mg; Cherokee Rose Hips, 30-500 mg; Vitamin C, 40-70 mg; Biotin, 600-900 mg; Vitamin E, 3-7 mg; α-lipoic acid, 1-4 mg; hyaluronic acid, 4-60 mg; glycine, 30-200 mg; Pickled Ume, 10-500 mg; glucosamine 5-300 mg; and gelatin, 30-500 mg.
In a further embodiment, a formulation of the present invention comprises the following active ingredients in the following amounts: Royal jelly (pollen), 30-1500 mg; Wolfberry extract (20:1 extract ratio), 30-500 mg; Chinese Angelica extract (20:1 extract ratio), 30-500 mg; and Cherokee Rose Hips (20:1 extract ratio), 30-500 mg. Alternatively, this formulation can additionally contain one or more of the following active ingredients in the following amounts: Grape seed extract, 100-150 mg; Lutein, 2-5 mg; Cherokee Rose Hips, 30-500 mg; Vitamin C, 40-70 mg; Biotin, 600-900 mg; Vitamin E, 3-7 mg; α-lipoic acid, 1-4 mg; hyaluronic acid, 4-60 mg; glycine, 30-200 mg; Pickled Ume, 10-500 mg; glucosamine 5-300 mg; and gelatin, 30-500 mg.
In an alternative embodiment, a formulation of the present invention comprises the following active ingredients in the following amounts: Chinese Angelica extract (20:1 extract ratio), 30-500 mg and Cherokee Rose Hips (20:1 extract ratio), 30-500 mg. Alternatively, this formulation can additionally contain one or more of the following active ingredients in the following amounts: Royal Jelly (pollen), 30-1500 mg; Wolfberry extract (20:1 extract ratio), 30-500 mg; Grape seed extract, 100-150 mg; Lutein, 2-5 mg; Vitamin C, 40-70 mg; Biotin, 600-900 mg; Vitamin E, 3-7 mg; α-lipoic acid, 1-4 mg; hyaluronic acid, 4-60 mg; glycine, 30-200 mg; Pickled Ume, 10-500 mg; glucosamine 5-300 mg; and gelatin, 30-500 mg.
In another embodiment, a formulation of the present invention comprises the following active ingredients in the following amounts: Cherokee Rose Hips (20:1 extract ratio), 30-500 mg and Pickled Ume (20:1 extract ratio), 10-500 mg. Alternatively, this formulation can additionally contain one or more of the following active ingredients in the following amounts: Royal Jelly (pollen), 30-1500 mg; Wolfberry extract (20:1 extract ratio), 30-500 mg; Chinese Angelica extract (20:1 extract ratio), 30-500 mg; Grape seed extract, 100-150 mg; Lutein, 2-5 mg; Vitamin C, 40-70 mg; Biotin, 600-900 mg; Vitamin E, 3-7 mg; α-lipoic acid, 1-4 mg; hyaluronic acid, 4-60 mg; glycine, 30-200 mg; glucosamine 5-300 mg; and gelatin, 30-500 mg.
In an alternative embodiment, a formulation of the present invention comprises the following active ingredients in the following amounts: Wolfberry extract (20:1 extract ratio), 30-500 mg and Cherokee Rose Hips (20:1 extract ratio), 30-500 mg. Alternatively, this formulation can additionally contain one or more of the following active ingredients in the following amounts: Royal Jelly (pollen), 30-1500 mg; Chinese Angelica extract (20:1 extract ratio), 30-500 mg; Grape seed extract, 100-150 mg; Lutein, 2-5 mg; Vitamin C, 40-70 mg; Biotin, 600-900 mg; Vitamin E, 3-7 mg; α-lipoic acid, 1-4 mg; hyaluronic acid, 4-60 mg; glycine, 30-200 mg; Pickled Ume, 10-500 mg; glucosamine 5-300 mg; and gelatin, 30-500 mg.
In a further embodiment, a formulation of the present invention comprises the following active ingredients in the following amounts: Chinese Angelica extract (20:1 extract ratio), 30-500 mg; Wolfberry extract (20:1 extract ratio), 30-500 mg; and Cherokee Rose Hips (20:1 extract ratio), 30-500 mg. Alternatively, this formulation can additionally contain one or more of the following active ingredients in the following amounts: Royal Jelly (pollen), 30-1500 mg; Grape seed extract, 100-150 mg; Lutein, 2-5 mg; Vitamin C, 40-70 mg; Biotin, 600-900 mg; Vitamin E, 3-7 mg; α-lipoic acid, 1-4 mg; hyaluronic acid, 4-60 mg; glycine, 30-200 mg; Pickled Ume, 10-500 mg; glucosamine 5-300 mg; and gelatin, 30-500 mg.
In another embodiment, a formulation of the present invention comprises the following active ingredients in the following amounts: Grape seed extract, 100-150 mg; Pickled Ume, 10-500 mg; Chinese Angelica extract (20:1 extract ratio), 30-500 mg; and Wolfberry extract (20:1 extract ratio), 30-500 mg. Alternatively, this formulation can additionally contain one or more of the following active ingredients in the following amounts: Royal Jelly (pollen), 30-1500 mg; Lutein, 2-5 mg; Cherokee Rose Hips, 30-500 mg; Vitamin C, 40-70 mg; Biotin, 600-900 mg; Vitamin E, 3-7 mg; α-lipoic acid, 1-4 mg; hyaluronic acid, 4-60 mg; glycine, 30-200 mg; glucosamine 5-300 mg; and gelatin, 30-500 mg.
In one embodiment, a formulation of the present invention comprises the following active ingredients in the following amounts: Grape seed extract, 100-150 mg; Chinese Angelica extract (20:1 extract ratio), 30-500 mg; and Wolfberry extract (20:1 extract ratio), 30-500 mg. Alternatively, this formulation can additionally contain one or more of the following active ingredients in the following amounts: Royal Jelly (pollen), 30-1500 mg; Lutein, 2-5 mg; Cherokee Rose Hips, 30-500 mg; Vitamin C, 40-70 mg; Biotin, 600-900 mg; Vitamin E, 3-7 mg; α-lipoic acid, 1-4 mg; hyaluronic acid, 4-60 mg; glycine, 30-200 mg; Pickled Ume, 10-500 mg; glucosamine 5-100 mg; and gelatin, 30-500 mg.
Methods of Administration
Improved skin appearance, texture, and moisture can be achieved by administering the formulations of the present invention externally, internally, or some combination thereof. Preferably, the formulations of the present invention are administered with an acceptable carrier. For example, the formulation of the present invention could be externally administered with an acceptable carrier in the form of a gel, lotion, cream, tonic, emulsion, etc. As a further example, the formulation of the present invention could be internally administered with an acceptable carrier in the form of a pill, tablet, powder, bar, beverage, etc. Thus, the formulations described herein are useful in a wide variety of finished products, including pharmaceutical products, food products, and beverage compositions. Preferably, the products are useful for providing mammalian skin with an improved texture, appearance, and increased moisture.
In a one embodiment of the invention, the formulations of the present invention are administered orally in the form of a Beauty Shot drink. Oral administration of the formulations of the present invention causes immediate moisturization of the skin and maintains youthful skin.
When the formulations of the present invention are orally administered in the form of a liquid, the liquid may be water-based, milk-based, tea-based, fruit juice-based, or some combination thereof. Solid and liquid formulations for internal administration according to the present invention can further comprise thickeners, including xanthum gum, carbosymethyl-cellulose, carboxyethylcellulose, hydroxyporpolcellulose, methylcellulose, microcrystalline cellulose, starches, dextrins, fermented whey, tofu, maltodextrins, polyols, including sugar alcohols (e.g., sorbitol and mannitol), carbohydrates (e.g. lactose), propylene hlycol alginate, gellan gum, guar, pectin, tragacanth gum, gum acacia, locust bean gum, gum arabic, gelatin, as well as mixtures of these thickeners. These thickeners are typically included in the formulations of the present invention at levels up to about 0.1%, depending on the particular thickener involved and the viscosity effects desired.
The solid and liquid (food and beverage) formulations of the present invention can, and typically will, contain an effective amount of one or more sweeteners, including carbohydrate sweeteners and natural and/or artificial no/low calorie sweeteners. The amount of the sweetener used in the formulations of the present invention will vary, but typically depends on the type of sweetener used and the sweetness intensity desired.
In another embodiment of the invention, the formulations of the present invention are topically administered in the form of a: solution, gel, lotion, cream, ointment, oil-in-water emulsion, water-in-oil emulsion, stick, spray, paste, mousse, tonic, or other cosmetically and topically suitable form.
Preferably, formulations of the present invention that are suitable for topical administration are mixed with an acceptable carrier. An acceptable carrier may act variously as solvent, carrier, diluent or dispersant for the constituents of the composition, and allows for the uniform application of the constituents to the surface of the skin at an appropriate dilution. The acceptable carrier may also facilitate penetration of the composition into the skin.
In one example of a formulation for topical application, the acceptable carrier forms from about 90% to about 99.99% by weight of the total composition. In other examples, the acceptable carrier will form from about 97% to 99% by weight of the total composition. The acceptable carrier may also form from about 91% to about 98% by weight of the total composition; from about 92% to about 97% by weight of the total composition; from about 93% to about 96% by weight of the total composition; or from about 94% to about 95% by weight of the total composition. The acceptable carrier can, in the absence of other cosmetic adjuncts or additives, form the balance of the composition.
The various ingredients used in practicing the present invention may be soluble or insoluble in the acceptable carrier. If all ingredients of a formulation are soluble in the acceptable carrier, then the vehicle acts as solvent. However, if all or some ingredients of a formulation are insoluble in the acceptable carrier, then those ingredients are dispersed in the vehicle by means of, for example, a suspension, emulsion, gel, cream or paste, and the like.
Thus, it will be apparent to the skilled artisan that the range of possible acceptable carriers is very broad. For example, acceptable carriers can be emulsions, lotions, creams, or tonics. Acceptable carriers can comprise water, ethanol, butylene glycol, or other various solvents that aid in penetration of the skin. Some examples of suitable vehicles are described in U.S. Pat. No. 6,184,247 and in U.S. Pat. No. 6,579,516, the entire contents of which are incorporated herein by reference.
Preferably the acceptable carrier used in practicing the present invention comprises water and ethanol. Optionally, the acceptable carrier also contains butylene glycol and/or frescolate MGA. For example, the acceptable carrier can comprise 40-60% water, 45-55% ethanol, and 5-10%% butylene glycol by weight of the composition. In practicing the present invention, preferably this acceptable carrier is mixed with a formulation of the present invention comprising 2% by weight of the total composition. In other embodiments, the acceptable carrier is mixed with a formulation of the present invention comprising 0.99% to 10% by weight of the total composition; 1% to 9% by weight of the total composition; 2% to 8% by weight of the total composition; 3% to 7% by weight of the total composition; or 4% to 6% by weight of the total composition.
In general, however, acceptable carriers according to the present invention may comprise, but are not limited to comprising, any of the following examples: water; castor oil; ethylene glycol monobutyl ether; diethylene glycol monoethyl ether; corn oil; dimethyl sulfoxide; ethylene glycol; isopropanol; soybean oil; glycerin; soluble collagen; zinc oxide; titanium oxide; or Kaolin.
Additionally, acceptable carriers used in the present invention may optionally comprise one or more humectants, including but not limited to: dibutyl phthalate; soluble collagen; sorbitol; or sodium 2-pyrrolidone-5-carboxylate. Other examples of humectants that may be used in practicing the present invention can be found in the CFTA Cosmetic Ingredient Handbook, the relevant portions of which are incorporated herein by reference.
Additionally, acceptable carriers in the present invention may optionally comprise one or more emollients including but not limited to: butane-1,3-diol; cetyl palmitate; dimethylpolysiloxane; glyceryl monoricinoleate; glyceryl monostearate; isobutyl palmitate; isocetyl stearate; isopropyl palmitate; isopropyl stearate; butyl stearate; isopropyl laurate; hexyl laurate; decyl oleate; isopropyl myristate; lauryl lactate; octadecan-2-ol; caprylic triglyceride; capric triglyceride; polyethylene glycol; propane-1,2-diol; triethylene glycol; sesame oil; coconut oil; safflower oil; isoamyl laurate; nonoxynol-9; panthenol; hydrogenated vegetable oil; tocopheryl acetate; tocopheryl linoleate; allantoin; propylene glycol; arachis oil; castor oil; isostearic acid; palmitic acid; isopropyl linoleate; lauryl lactate; myristyl lactate; decyl oleate; or myristyl myristate. Other examples of emollients that may be used in practicing the present invention can be found in the CFTA Cosmetic Ingredient Handbook, the relevant portions of which are incorporated herein by reference.
Additionally, acceptable carriers used in the present invention may optionally comprise one or more penetration enhancers including but not limited to: pyrrolidones, for example 2-pyrrolidone; alcohols, such as ethanol; alkanols, such as decanol; glycols, such as propylene glycol, dipropylene glycol, butylenes glycol; surfactants; or terpenes.
Other acceptable carriers that may be used in practicing the present invention will be apparent to those of skill in the art and are included within the scope of the present invention.
For example, an acceptable carrier can be a lotion that is topically applied. The lotion may comprise cabomer 981, water, glycerin, isopropyl myristate, mineral oil, shea butter, stearic acid, glycol stearate, cetyl alcohol, dimethicone, preservatives, tea, and various ingredients of the formulations of the present invention.
The formulations of the present invention may also contain various known and conventional cosmetic adjuvants so long as they do not detrimentally affect the desired skin improvement and moisturizing effects provided by the formulation. For example, a formulation of the present invention can further include one or more additives or other optional ingredients well known in the art, which can include but are not limited to fillers (e.g., solid, semi-solid, liquid, etc.); carriers; diluents; thickening agents; gelling agents; vitamins, retinoids, and retinols (e.g., vitamin B3, vitamin A, etc.); pigments; fragrances; sunscreens and sunblocks; anti-oxidants and radical scavengers; organic hydroxy acids; exfoliants; skin conditioners; moisturizers; ceramides, pseudoceramides, phospholipids, sphingolipids, cholesterol, glucosamine, pharmaceutically acceptable penetrating agents (e.g., n-decylmethyl sulfoxide, lecithin organogels, tyrosine, lysine, etc.); preservatives; antimicrobial agents; amino acids such as proline, pyrrolidone carboxylic acid, its derivatives and salts, saccharide isomerate, panthenol, buffers together with a base such as triethanolamine or sodium hydroxide; waxes, such as beeswax, ozokerite wax, paraffin wax; plant extracts, such as Aloe Vera, cornflower, witch hazel, elderflower, or cucumber and combinations thereof. Other suitable additives and/or adjuncts are described in U.S. Pat. No. 6,184,247, the entire contents of which are incorporated herein by reference.
The formulation can include additional inactive ingredients, including, but not limited to surfactants, co-solvents, and excipients. Surfactants, such as hydrophilic and hydrophobic surfactants, can be included in the formulations. Particular surfactants can be used based on the on the overall composition of the formulation and the intended delivery of the formulation. Useful surfactants include polyethoxylated (PEG) fatty acids, PEG-fatty acid diesters, PEG-fatty acid mono- and di-ester mixtures, polyethylene glycol glycerol fatty acid esters, alcohol-oil transesterification products, polyglycerized fatty acids, propylene glycol fatty acid esters, mixtures of propylene glycol esters-glycerol esters, mono- and diglycerides, sterol and sterol derivatives, polyethylene glycol sorbitan fatty acid esters, polyethylene glycol alkyl ethers, polysaccharide esters, polyethylene glycol alkyl phenols, polyoxyethylene-polyoxypropylene block copolymers, sorbitan fatty acid esters, lower alcohol fatty acid esters, ionic surfactants, and mixtures thereof.
The formulations can also include co-solvents such as alcohols and polyols, polyethylene glycols ethers, amides, esters, other suitable co-solvents, and mixtures thereof. The formulations can also include excipients or additives such as sweeteners, flavorants, colorants, antioxidants, preservatives, chelating agents, viscomodulators, tonicifiers, odorants, opacifiers, suspending agents, binders, and mixtures thereof.
Generally, the formulations of the present invention are topically or orally administered at least on a daily basis for a period of time sufficient to bring about the desired level of improvement in skin appearance, texture, and moisture. Topical application or oral administration of the formulations of the invention may continue for any suitable period of time. More specifically, within a few hours to within a few days of the initial application or ingestion, a user may notice the skin has an improved appearance, texture, and moisture. It should be appreciated that the frequency with which the formulations of the present invention should be applied or ingested will vary depending on the desired level improved appearance, texture, and moisture. In particular, the degree of cosmetic enhancement will vary directly with the total amount of composition used.
Useful dosage forms can be prepared by methods and techniques that will be well understood by those of skill in the art and may include the use of additional ingredients in producing tablets, capsules, or liquid dosage forms.
It is intended that the foregoing detailed description be regarded as illustrative rather than limiting. The present invention is further illustrated by the following experimental investigations and examples, which should not be construed as limiting. The contents of all references, patents and published applications cited throughout this patent are hereby incorporated by reference herein.
Hs27, a human fibroblast cell culture and HEK, a human keratinocyte cell culture, were established in 24 well plates. The cells were exposed to various ingredients used in formulations of the present invention at concentrations of 10 mg/ml. The co-cultures were then incubated overnight. The following day, supernatants were collected. The supernatants were analyzed for the presence of pro-collagen, a soluble precursor of collagen formed by fibroblasts in the process of collagen synthesis. Pro-collagen synthesis was assayed using commercially available ELISA kits. See e.g., Hasan A, Murata H, Falabella A, Ochoa S, Zhou L, Badiavas E, Falanga V. “Dermal fibroblasts from venous ulcers are unresponsive to the action of transforming growth factor-beta 1.” J Dermatol Sci. 1997. 16(1):59-66.
As illustrated by
Hs27, a human fibroblast cell culture and HEK, a human keratinocyte cell culture, were established in 24 well plates. The cells were exposed to various ingredients of the formulations of the present invention at concentrations of 10 mg/ml. The co-cultures were then incubated overnight. The following day supernatants were collected. The supernatants were analyzed for the presence of elastin using the Fastin Elastin® kit from Biocolor. Liao J., Vessely I. 2004. “Relationship between collagen fibrils, glycosaminoglycans, and stress relaxation in mitral valve chordae tendineae.” Ann. Biomed. Eng. 32(7):977-983.
As demonstrated in
Hs27, a human fibroblast cell culture and HEK, a human keratinocyte cell culture, were established in 24 well plates. The cells were exposed to various ingredients of the formulations of the present invention at concentrations of 10 mg/ml. The co-cultures were then incubated overnight. The following day supernatants were collected. The supernatants were analyzed for the presence of hyaluronic acid. Hyaluronic acid synthesis was assayed using commercially available ELISA kits. Lindqvist U., Chichibu K., Delpech B., Goldberg R L, Knudson W., Poole A R, Laurent T C. 1992. “Seven different assays of hyaluronan compared for clinical utility.” Clin. Chem. 38(1):127-32.
As illustrated in
Commercially available kits were used for testing the effect of various ingredients used in the formulations of the present invention on the activity of the MMP-1, MMP-9, and elastase. Gould L J, Yager D R, McGeehan G M, Diegelmann R F. 1999. “Method to analyze collagenase and gelatinase activity by fibroblasts in culture.” In Vitro Cell. Dev. Biol. Anim. 35(2):75-79. For MMP-1, a kit from Amersham® was used according to the manufacturer's specifications. For MMP-9 and Elastase, kits from Molecular Probes® were used. The samples were prepared in stock solvent at stock concentrations of 100 mg/ml. The samples were diluted to 100 μg/ml using PBS.
Human HEK001 cells were plated at 2×104/well in 96 well plates and were incubated overnight. The following day, the cells were exposed to: glycine, Cherokee rose hips, grape seed extract, Wolfberry extract, Pickled Ume, Ascorbic acid, Chinese Angelica extract, royal jelly, and α-tocopherol, which were diluted into cell culture media at concentrations of 0.005%, 0.05%, and 0.5%.
The cells were then again incubated overnight. The following day, the cells were fixed in 1% formaldehyde. Cellular lipids were then stained with Oil Red O® stain. See Ramirez J L, Castro-Munnozledo F, Kuri-Harusch W. 1992. “Quantitation of adipose conversion and triglycerides by staining intracytoplasmic lipids with Oil Red O.” Histochemistry. 97:493-497. Following staining, the lipid bound stain was extracted with isopropanol. The OD of the extracted stain was read at 515 nm.
Grape Seed extract was the most potent inducer of lipid synthesis, but Cherokee rose hips and α-tocopherol also demonstrated the ability to induce lipid synthesis.
Table 2 summarizes the results of the bioassays discussed in Examples 1-5 and illustrates the effects of glycine, Cherokee rose hips, grape seed extract, wolfberry extract, pickled ume, ascorbic acid, Chinese Angelica extract, royal jelly, and α-tocopherol on formation of collagen, elastin, MMP-1, MMP-9, and lipids. In Table 2, a “+” sign indicates an increase in synthesis, with multiple “+” signs indicating a higher increase in synthesis while a “−” sign indicates decrease in synthesis with multiple signs indicating a higher decrease in synthesis. “NT” indicates that a particular compound's effect on collagen, elastin, MMP-1, MMP-9, elastase, or lipid formation was not tested.
High oral absorption levels are critical for the success of any orally administered formulation of the invention. Differentiated Caco-2 cell monolayers exhibit morphological and physiological properties of the human small intestine, e.g., barrier function, microvilli, brush-border enzymes, active transport systems, and efflux systems. Therefore, Caco-2 cells provide a reliable in vitro model to predict in vivo intestinal absorption.
Caco-2 cells are grown on transwell polycarbonate inserts for 21 days. Growth and differentiation is monitored by the measurement of the transepithelial electrical resistance during culture. The test compound is added in triplicate in the donor compartment. Samples are collected from the receiver compartment at specified time points. To assess the influence of P-glycoprotein on the transport process of a compound, the apical-to-basolateral vs. basolateral-to-apical transport is compared. For quality control and for classification of test compounds reference compounds with a high and low transepithelial flux are included in each assay. Reference compounds may be chosen from a compound list provided by Pharmacelsus®. After each assay, the integrity of each cell monolayer is checked by the determination of the permeability coefficient value (Papp) of Lucifer yellow.
Compound concentrations are measured in the receiver and donor compartments by UV-spectroscopy or by LC-MS/MS. These concentration values are used for the calculation of the apparent permeability and the recovery of a compound.