55 results about "Vitamin C ethyl" patented technology

The invention specifically discloses composite whitening and banishing essence and a preparation method thereof. The composite whitening and banishing essence comprises the following raw materials in percent by weight: 1 to 25 percent of Chinese herb active site extract, 0.1 to 10 percent of ethylhexyl ferulate, 0.1 to 5 percent of vitamin C ethyl ether, 0.05 to 3 percent of nicotinamide, 10 to 40 percent of grease, 1 to 6 percent of emulsifier, 1 to 15 percent of moisturizing agent, 0.1 to 1.5 percent of preservative, 0.1 to 0.5 percent of essence and the balance of deionized water. By virtue of the composite whitening and banishing essence, the activity of tyrosinase can be effectively inhibited, oxygen free radicals are efficiently eliminated, forming of melanin is prevented, and the formed melanin is decomposed and faded; meanwhile, an endocrine system of a human body can be regulated, and injuries to the skin caused by chemical components such as hormone are repaired, so that effects of treating both symptoms and root causes comprehensively and quickly are achieved.

The invention discloses a moisturizing, whitening, acne removing, grease controlling and relieving skin beautifying composition. The composition is mainly prepared from the following raw materials: raspberry ketone glucoside, arbutin, matrine, fructo-oligosaccharide, tea tree oil, dipotassium glycyrrhizinate, an extracting solution of leaf of Tasmanian bluegum, tea polyphenol, a peony root extract, tremella polysaccharide, hyaluronic acid with low molecular weight, hyaluronic acid with high molecular weight, transparent xanthan gum, zinc gluconate, Carbomer 940, hydroxyethyl cellulose, 1,3-butanediol, nicotinamide, D-panthenol, tranexamic acid, vitamin C ethyl ether, triethanolamine, an emulsifier, water, and the like. The moisturizing, whitening, acne removing, grease controlling and relieving skin beautifying composition has the beneficial effects that the composition is rich in plant essence, is reasonable in proportioning and can achieve the effects of effectively comforting and smoothening pores, cleaning hair follicles, balancing grease excretion, promoting wound healing and ensuring no pockmarks after healing and low recurrence probability; besides, the composition is also rich in moisturizing ingredients, so that the skins can be hydrated and bright, fine lines can be reduced and smooth and fair skins can be restored after the composition is used for a long term.

The invention discloses anti-ultraviolet mask liquid, which is obtained by impregnating mask paper into liquid prepared from the following raw materials in parts by weight: 0.1-3 parts of small molecular hyaluronic acid, 1-5 parts of macromolecular hyaluronic acid, 0.7-30 parts of synthetic egg white powder, 5-10 parts of aloe extract, 0.7-9 parts of propylene glycol, 5-50 parts of 1,2-butanediol, 5-30 parts of glycerin, 20-50 parts of ginseng extract, 40-80 parts of radix scutellariae extract, 10-50 parts of licorice extract, 5-10 parts of kojic acid, 5-30 parts of nano water-soluble titanium dioxide, 1-5 parts of raspberry ketone glucoside, 1-10 parts of vitamin C ethyl ether and the balance of water added till the total volume is 1000 parts. The components of the mask liquid are appropriate in selection and reasonable in coordination, and are synergistic from different mechanisms to achieve the anti-ultraviolet effect, so that the mask liquid can reduce the transmission of ultraviolet and repair skin injury caused by ultraviolet, and has double-protection effect, better effect and very good anti-allergic function.

The invention discloses a facial mask with functions of skin whitening and spot removing and a preparation method thereof. The facial mask comprises the following spot removing ingredients in percentage by weight: 0.01-0.2 percent of nicotinamide, 0.01-10 percent of scutellaria baicalensis root extract, 0.01-3 percent of tranexamic acid, 0.01-5 percent of yeast extract, 0.01-3 percent of vitamin Cethylether, 0.01-5 percent of boerhavia diffusa root extract and 0.01-2 percent of carnosine. The facial mask is prepared from safe and irritation-free ingredients, and the preparation process is simple and convenient. The facial mask adopts multiple synergized skin whitening and spot removing ingredients and moisturizing ingredients, can be used for effectively inhibiting melanin pigmentation, accelerating cellular metabolism and melanin decomposition, moisturizing skin and enhancing skin moisturizing capacity, thereby achieving multiple functions including skin whitening, spot removing, moisturizing, inflammation resisting, skin repairing and the like and achieving the effects of comprehensive whitening, skin tone brightening and evening and improving skin texture.

A night maintenance mask solution is made through dipping a liquid in mask paper, and 1000 parts of the liquid are prepared from, by weight, 0.5-3 parts of micro-molecular hyaluronic acid, 1-5 parts of an aloe extract product, 0.7-9 parts of propylene glycol, 5-50 parts of 1,2-butylene glycol, 5-30 parts of glycerin, 20-50 parts of a ginseng extract liquid, 10-50 parts of a licorice root extract liquid, 5-20 parts of rose hydrolat, 1-10 parts of ethyl ascorbic acid, 0.5-5 parts of silk peptides, 0.5-5 parts of argireline peptides, 0.5-5 parts of apple stem cells, and the balance of water. The night maintenance mask solutionis aqueous, can rapidly enter skins, can remove wrinkles, has water supplementation, water retention, restoration, nutrition supplementation, anti-inflammation, bacterium prevention, itch relief and anti-allergy effects in skins, participates in and promotes cell metabolism, relieves skin wrinkles, enhances the skin elasticity, also has the advantages of no irritation to skins and no abnormal sensation, long action time and substantial effect, and is suitable for all skin types.

The invention discloses a whitening cosmetic composition, mainly comprising PCA (pyroglutamic acid) zinc, chlorella / white lupin protein fermented product, watercress flower / leaf / stem extract, vitamin C ethyl ether and other components. The whitening cosmetic composition can brighten and white the skin and can also moisturize the skin and fade wrinkles.

The invention discloses a whitening and moisturizing stock solution and a preparation method thereof. The whitening and moisturizing stock solution is prepared from nonapeptide-1, hexapeptide-2, vitamin C ethyl ether, nicotinamide and the like, the activity of melanoblast is effectively weakened, the output of melanin is reduced, generation of the melanin is inhibited, the melanin conveying meanscan be inhibited, and the effects of skin color equalization and brightening are achieved; the good antioxidant and antibacterial and anti-inflammatory effects are achieved, synthesis with collagen isconducted, the skin cell activity is repaired, and the elasticity and smoothness of the skin are improved. The barrier function of the skin can be improved, the transepidermal water loss is lowered,and the moisturizing effect of the stock solution is improved; facial redness and pigmentation are reduced; the effect of expanding the blood vessel is achieved.

The invention discloses a whitening anti-aging skin softening lotion and a preparation method thereof. Active ingredients in the skin softening lotion include, by weight, 0.1-1 part of hirudin, 0.2-0.4 part of astaxanthin, 2-3 parts of tranexamic acid, 0.01-0.05 part of melatonin, 4-6 parts of glutathione, 1-3 parts of alpha-arbutin, 0.6-1 part of resveratrol, 0.1-0.2 part of gallogen, 0.1-0.5 part of selenium cysteine, 0.02-0.4 part of GSH-Px, 0.2-0.8 part of SOD, 0.6-2 parts of vitamin C ethylether, 0.4-0.6 part of nicotinamide, 2-4 parts of carnosine and 1-2 parts of green plum extract. Theskin softening lotion inhibits activity of tysocinase in melanoblast and cut off synthesis path of melanin, then further inhibits dopamine peroxidation, reduces melanin and delay skin cell aging; selenium cysteine and GSH-Px are utilized to collaboratively catalyze to participate in peroxidation reaction, so that whitening and anti-aging effects are further enhanced, and the skin softening lotionhas good moisturizing performance.

The invention belongs to the technical field of cosmetics and relates to a chlorophyll-containing skincare product capable of resisting sunburn and repairing after sunburning. The chlorophyll-containing skincare product capable of resisting sunburn and repairing after sunburning is prepared from chlorophyll compound liposome, hydrogenated jojoba oil, amygdalus pedunculata oil, squalane, cyclopentasiloxane, cetostearyl alcohol, PEG-100 stearate, tocopheryl acetate, bisabolol, butanediol, beta-glucan, sodium hyaluronate, carbopol, mycose, cetearyl glucoside, vitamin C ethyl ether, moringa oleifera leaf extract, triethanolamine, preservatives, essence and water. The chlorophyll-containing skincare product is stable in property, high in safety and high in usage comfort, is capable of effectively resisting ultraviolet rays of different wavebands, also has a good function of resisting photo-aging, and is also capable of preventing symptoms such as skin aging, freckles and desquamation and the like caused by sunburn and accelerating the repairing of the skin after sunburning.

The invention provides composition with acne removing and repairing effects. The composition is prepared from components in a weight ratio as follows: 0.1%-5.0% of hyaluronic acid, 5.0%-30.0% of plant sucrose extract, 1.5%-9.0% of an acne mark fading compound and 60.0%-93.4% of substrate auxiliary materials, wherein the plant sucrose extract is prepared from eight plant conditioners including herba portulacae, lithospermum euchromon royle, folium artemisiae argyi, hypericum perforatum, white willow bark, radix salviae miltiorrhizae, radix scutellariae and witch hazel in certain ratio, the eight plant conditioners are mixed in a sucrose solution, a mixed solution is concentrated, and the extract is obtained; the acne mark fading compound is prepared from nicotinamide, vitamin C ethyl ether and salicylic acid in certain ratio through mixing and matching. According to the composition and the preparation method, the problem of acne is solved quickly on the basis of the deep mechanism of acne generation, damaged acne skin is deeply repaired and nourished, acne marks and pockmarks are effectively faded, so that the acne skin rapidly restores original color and elasticity, and the composition is novel, safe, efficient and lasting active acne removing composition. Furthermore, with addition of the related substrate auxiliary materials, acne removing products in multiple dosage forms can be prepared from the composition, and the dosage forms include but are not limited to an aqueous solution, a facial mask, cleanser, emulsion, cream, gel and the like.

The present invention discloses one kind of nanometer skin-activating emulsion cosmetics, which is transparent oil-in-water micro emulsion cosmetics prepared with active components including ginsenoside, 3-amino propanol phosphate and vitamin C ethyl ether in 0.50-6.50 wt%, nanometer emulsion matrix in 77.00-95.00 wt% and supplementary material in 1.60-16.80 wt% and through mixing. The nanometer skin-activating emulsion cosmetics has high stability, high transdermal permeability and effects of protecting skin, nursing face, decreasing wrinkles, smoothening skin and delaying skin senility.

The invention relates to the technical field of cosmetics, particularly to a peppermint facial mask liquid and a preparation method thereof, wherein the peppermint facial mask liquid comprises, by weight, 6-10% of propylene glycol, 0.1-1% of a Hamamelis virginiana extract, 0.1-1% of an Aloe vera L leaf extract, 0.1-1% of a Portulaca oleracea L extract, 0.1-1% of a chamomilla extract, 0.1-1% of a peppermint leaf extract, 0.5-5% of betaine, 0.1-0.4% of dipotassium glycyrrhizinate, 0.05-0.3% of sodium hyaluronate, 0.1-0.5% of allantoin, 0.03-0.3% of Carbomer, 0.1-0.2% of xanthan gum, 0.1-0.2% ofhydroxyethyl cellulose, 0.00005-0.0005% of oligopeptide-1, 0.00004-0.0004% of oligopeptide-3, 0.03-0.3% of triethanolamine, 0.01-0.02% of menthol, 0.5-2% of vitamin C ethyl ether, 0.4-1.0% of 1,2-hexanediol, 0.4-0.6% of p-hydroxyacetophenone, 0.1-0.5% of PEG-40 hydrogenated castor oil, 0.01-0.05% of peppermint leaf oil, and 10-90% of deionized water. According to the present invention, the peppermint facial mask liquid can quickly achieve the effects of water supplementing, moisturizing, skin whitening, oil controlling, acne removing and complexion brightening, and further can effectively release the skin sensitivity.

Vitamin C ethyl ether is an oleophylic and hydrophilic amphiprotic vitamin C ramification. The vitamin C and acetone are raw materials, anhydrous cupric sulfate serves as a catalyst for the reaction to synthesize 5,6-O-isopropylidene-L-ascorbic acid (IAA for short); IAA and bromoethane (CH3CH2Br) serve as raw materials, and under the existence of acetone and potassium carbonate, 3-O-ethane-5,6-O-isopropylidene-L-ascorbic acid is synthesized; hydrochloric acid is added to remove a protecting group; and superior product vitamin C ethyl ether is obtained through recrystallization. Compared with a traditional synthetic method, the technology is simple and convenient to conduct, raw materials are easy to obtain, the raw materials are bulk chemical raw materials, the cost is low, the yield is high, and industrial popularization is easy.

The invention discloses a spot removing and skin whitening skin nursing dressing and a preparation method thereof. The spot removing and skin whitening skin nursing dressing is prepared from the following components in parts by weight: 0.02-3 parts of hyaluronic acid, 0.2-8 parts of styrene-acrylic acid ester copolymer, 0.02-3 parts of carbomer, 0.3-15 parts of glycerin, 0.04-2 parts of allantoin,0.05-10 parts of arbutin, 0.05-8 parts of vitamin C ethyl ether, 0.05-10 parts of safflower extract, 0.01-1 part of caprylhydroxamic acid, 0.4-6 parts of hexandiol, 0.01-1 part of pH regulator and 33-99 parts of water. The spot removing and skin whitening skin nursing dressing provided by the invention has the efficacy of physical occlusion for protection, acceleration in skin metabolism, inhibition of melanin generation, antisepsis, inflammation resistance, elimination of scytitis, prevention of hyperpigmentation, elimination of freckle in multiple directions and skin whitening, is simple inpreparation process, does not contain some chemical stimulating substances and is particularly suitable for people with skin sensitivity.

The invention provides a freckle removing cream and a preparation method thereof. The freckle removing cream comprises the following raw materials: 20-35% of freckle removing Chinese medicinal liquid, 0.1-10% of ethylhexyl ferulate, 0.1-5% of vitamin C ethyl ether, 0.05-3% of nicotinamide, 10-40% of grease, 1-6% of an emulsifier, 0.1-0.5% of essence and the balance skin lotion. The freckle removing cream provided by the invention can improve skin metabolism, promote skin blood circulation and increase skin nutrition, also can effectively remove free radicals, eliminate pigmentation, dilute skin wrinkles and color spots, and make the skin more delicate, smoother, tender and whiter, and full of elasticity.

The invention discloses a high-molecular soluble microneedle and a production method thereof. The high-molecular soluble microneedle is composed of a needle body and a substrate; the needle body is composed of hyaluronic acid, polyglutamic acid, tremella polysaccharide, vitamin C ethyl ether, oligopeptide-1, oligopeptide-3, oligopeptide-5, cannabidiol, arbutin, rhodiola rosea extract, vitamin E, ginseng extract, radix sophorae flavescentis extract, pseudo-ginseng extract, rose essential oil, trehalose, polyvinyl alcohol, polyvinylpyrrolidone, soluble starch, glycerol and water; and the substrate is composed of polyvinyl alcohol and water. The production method of the microneedle comprises the following steps: weighing the components in parts by weight, respectively carrying out vacuum stirring dissolution on the components of the needle body and the substrate, carrying out high-pressure molding on the needle body part through a mold and a high-pressure device, coating the mold with a vacuum stirring dissolution solution of the substrate, and carrying out freeze drying to obtain the microneedle. The product is good in penetrability, safe, reliable and convenient to use; the production method is simple, time-saving and high in feasibility.

The invention discloses a whitening and freckle removing skin care product. The whitening and freckle removing skin care product adopts the formula comprising, by weight, 1-5 parts of a Chinese kiwifruit extract, 1-5 parts of a grape fermented extract-glutathion mixture, 3-8 parts of a Chinese rehamannia glutinosa root extract and 0.1-2 parts of vitamin C ethyl ether. Firstly, the Chinese kiwifruit extract is used to decompose melanin retained in the skin, the grape fermented extract and glutathion are used to reduce the melanin, and the glutathion also has the effect of chelating heavy metalsand has detoxification effect on the skin poisoned by heavy metals; secondly, melanion formation is inhibited, hydroquinones and kojic acids which are toxic to melanocytes are not used, and plant-derived glycyrrhizin (glycyrrhiza uralensis fisch) and vitamin C ethyl ether are used; finally, the efficacy is harmonized and sped up, the Chinese rehamannia glutinosa root extract is used to increase the local blood circulation of the skin, and tranexamic acid is used to inhibit inflammatory mediators.

The invention discloses facial mask liquid for repairing couperose skin and a preparation method of the facial mask liquid. The facial mask liquid is prepared from the following components in parts byweight: 16 to 24 parts of protein growth factor, 2 to 4 parts of licochalcone A, 30 to 50 parts of lactobacillus / vigna radiata seed extract / glutamic sodium fermented product filtrate, 6 to 10 parts of vitamin C ethyl ether, 8 to 12 parts of vitamin A, 4 to 6 parts of vitamin B2, 9 to 15 parts of ceramide, 3 to 5 parts of nicotinamide, 10 to 20 parts of rose hydrosol, 15 to 23 parts of lanolin, 4to 8 parts of arginine, 12 to 16 parts of butanediol, 7 to 11 parts of D-panthenol, 0.1 to 0.3 part of folic acid, 24 to 32 parts of hyaluronic acid, 0.5 to 3.5 parts of tea polyphenol, 1 to 14 partsof thickening agent and 80 to 100 parts of deionized water. The protein growth factor is prepared from the following components in percentage by weight: 20 to 28 percent of oligopeptide-1, 10 to 14 percent of oligopeptide-2, 18 to 22 percent of oligopeptide-3, 26 to 46 percent of oligopeptide-5 and 6 to 10 percent of palmitoyl tripeptide-8. The facial mask liquid disclosed by the invention has theadvantages that elasticity and functions of facial capillary are favorably restored and blood circulation is improved; in addition, intercellular matrix is replenished, cuticle is reconstructed, fibroblast proliferation is promoted and damaged epidermal barrier is repaired, so that the couperose skin can be cured from the root.

The invention discloses a whitening and freckle-removing cosmetic product made from plant extracts. The whitening and freckle-removing cosmetic product comprises, by weight, 2-8 parts of vitamin C ethyl ethers, 4-10 parts of 3-0-ethyl ascorbic acid, 5-15 parts of biological carbohydrate gum, 4-18 parts of matrine extracts, 8-20 parts of licorice extracts, 4-12 parts of mint extracts, 5-16 parts ofpearl powder, 4-12 parts of motherwort, 4-10 parts of white chrysanthemums, 8-12 parts of common coltsfoot flowers and 20-40 parts of purified water. The whitening and freckle-removing cosmetic product has the advantages that the preparation method is simple; by the obtained cosmetic product, skin metabolism can be improved, skin blood circulation can be promoted, skin nutrition can be increased,free radicals can be removed effectively, pigmentation can be eliminated, wrinkles and stains of the skin can be relieved, and the skin becomes fine, smooth, white and flexible.

The invention provides a skin care lotion containing sheep placenta. The skin care lotion is characterized by being consisting of sheep placenta and skin care lotion substrates, wherein the skin carelotion substrates comprise the following components in percentage by mass of 0.05%-0.1% of EDTA-2Na, 0.5%-1% of water-soluble jojoba oil, 0.5%-1% of 3-o-ethyl ascorbicacid, 0.1%-0.5% of nicotinamide,0.01%-0.02% of palmitoyl pentapeptide-4, 0.01-0.02% of acetyl hexapeptide-8, 0.5%-1% of hexylene glycol and the balance distilled water. The invention also discloses an extraction method of the sheepplacenta. The skin care lotion containing sheep placenta disclosed by the invention can alleviate skin wrinkles and delay skin ageing, is notable in transdermal absorption effect and long in quality guarantee period, has predominant whitening effects, is non-irritating to skin, is good in skin elasticity after being used, is excellent in skin care and feature beautifying effects, is wide in adaptability and has high promotion value.

The invention relates to the field of the synthesis of vitamin C derivatives, and in particular relates to a synthesizing method of vitamin C ethyl ether. The method comprises the following steps of: reacting vitamin C as an initiative raw material and dimethoxy propane as a reactant, thereby generating (R)-3,4-dyhydroxyl-5- [(S)-2,2-dimethyl-1,3-dioxolane-4-yl] furan-2(5H)-ketone; next, adding alkali and an alkylation reagent, thereby generating (R)-4-ethyoxyl-3-hydroxyl-5-[(S)-2,2-dimethyl-1,3-dioxolane-4-yl] furan-2(5H)-ketone; and removing a protecting group, thereby generating the vitamin C ethyl ether. According to the method, the reactions in the three steps can be finished in the same kettle, so that the industrialized operation is simplified greatly; and a large number of organic waste liquids cannot be generated. As a result, the total yield in the three steps is improved to 50%-53.4%.

The invention relates to liquid soap. The retention time in the body can be greatly increased by adding hyaluronic acid and defined amount of vitamin C ethyl ether to a liquid soap formula under the condition of not chemically modifying the hyaluronic acid. Researches show that the retention time of the hyaluronic acid in the skin is as long as 12 hours after the liquid soap adopting the formula is used.

The invention relates to the technical field of cosmetics, in particular to tightening aging-resisting and wrinkle-removing essence containing sponge micro-needles and EGF and a preparation method ofthe tightening aging-resisting and wrinkle-removing essence. The essence comprises the following raw materials in parts by weight: 65-75 parts of deionized water, 3-7 parts of dipropylene glycol, 2-8parts of a yeast extract, 1-5 parts of oat glucan, 1-5 parts of EGF, 1-3 parts of a polyglutamic acid aqueous solution, 0.05-0.15 part of hyaluronic acid, 0.1-0.2 part of rhodicare, 0.1-0.2 part of aS30 thickening agent, 0.5-1.5 parts of Care 85, 0.2-0.8 part of tocopherol, 0.8-1.4 parts of DC345, 2-5 parts of vitamin C ethyl ether, 1.5-3.5 parts of nicotinamide, 0.2-0.6 part of p-hydroxyacetophenone, 0.3-0.7 part of hexanediol, 0.4-0.6 part of the sponge micro-needles, 0.3-0.6 part of a peony root extract, 0.05-0.15 part of Chanel essence, 0.3-0.8 part of CO-40 and 0.1-0.2 part of triethanolamine. The essence is added with multiple active ingredients such as the sponge micro-needles, EGF and the peony root extract, by the prepared essence, maintaining and growth of collagen and elastin of skin are facilitated, self-healing of the skin is promoted, skin wrinkles are removed, and the essence has effects of tightening, resisting aging, removing wrinkles and the like.

The invention discloses a method for eradicating color spots through melanin dissolution guide, wherein physical therapy is combined with drug therapy; an omnipotent spot clearing pen is dipped in melanin dissolution guide liquid and the melanin dissolution guide liquid is dispensed on the color spots through the omnipotent spot clearing pen; through the massage effect of the omnipotent spot clearing pen, the melanin dissolution guide liquid can quickly permeate into the color spots on the skin, thereby improving the absorption of the melanin dissolution guide liquid by the skin. Arbutin in the melanin dissolution guide liquid can be directly combined with tyrosinase so as to accelerate the decomposition and excretion of melanin and remove the color spots and freckles; salidroside and vitamin C ethyl ether sample can inhibit the tyrosine kinase activity so as to prevent the generation of the melanin and realize an effect of fading the spots; active ingredients in the melanin dissolution guide liquid soften the skin and thus improving the skin nourishing effect; moreover, the active ingredients also can be directly combined with the tyrosinase, then the decomposition and excretion of the melanin are accelerated, and the color spots are removed, thereby perfectly achieving the aims of removing spots, tendering skin and preserving moisture.

The invention provides a skin care composition as well as a preparation method and application thereof. The skin care composition comprises the following raw materials in percentage by weight: 5-20% of a moisturizer, 0.1-2% of a bactericide, 0.5-5% of a thickener, 1-10% of a skin conditioner, 20-40% of a cosolvent and the balance water, wherein the bactericide is selected from lactic acid, the skin conditioner is selected from at least one of vitamin C ethyl ether, L-carnitine and water-soluble vitamin E, and the thickener is selected from polyquaternary ammonium salt-37. The composition has excellent skin whitening and moisturizing capacity and exfoliating, barb repairing and bactericidal capacity at the same time, can significantly reduce skin melanin, can reduce melanin by 10.0% and increase the skin moisture content by 15%-33% after being used for a month, can remarkably realize exfoliation and improve barbs, has very high killing rates for multiple strains, and can form invisiblemembranes with excellent adsorption capacity to allow active matter to stay on the skin for a longer time.

The invention discloses a skin whitening composition containing Chinese herb extracts and a preparation method of the skin whitening composition, and aims at providing the skin whitening composition containing Chinese herb extracts which is safe and good in skin whitening effect. The technical key points as follows: the skin whitening composition is prepared from the following components in percentage by weight: 50-60% of vitamin C ethylether, 10-45% of rheum officinale extract, and 5-20% of potassium azeloyl diglycinate; and the skin whitening composition belongs to the technical field of cosmetics.

The invention discloses a cosmetic additive. The cosmetic additive consists of the following raw materials in parts by weight of 30-50 parts of jellyfish, 20-40 parts of centella asiatica, 20-40 partsof hedera nepalensis var. sinensis (Tobl.) Rehd, 15-25 parts of chamomile, 3-5 parts of coleus forskohlii, 4-6 parts of comfrey, 3-5 parts of complex vitamins, 1-3 parts of apple polyphenols, 1-3 parts of ferulic acid, 2-4 parts of arbutin, 3-5 parts of an astringent, 1-3 parts of calamine, 5-7 parts of ethyl ascorbic acid, 3-5 parts of diglucosyl gallic acid, 4-6 parts of zirconium oxide balls,20-40 parts of pearl powder and 3-5 parts of tributyl phosphate. The cosmetic additive can deeply lock up moisture of skin and muscle, and even in environment being low in relative humidity, can alsomaintain moisture of the skin and muscle for a long time, so that the skin cannot be dried to lack of water due to environment influence, the moisture content and the moistening degree of the skin canbe maintained for a long time, and the skin elasticity can be improved; and through direct combination of the cosmetic additive with tyrosinase and blocking of oxidation effects of tyrosinase and dopa, decomposition and draining of melanin are accelerated, melanin formation is blocked, and the whitening efficacy is exerted.

The invention discloses a method for synthesizing vitamin C ethyl ether with reasonable process design, mild reaction conditions, high product yield, no need to use a resin catalyst, and an environmentally friendly production process. The method comprises the following steps: 1) using stannous chloride and tetrabutylammonium bromide as catalysts to synthesize vitamin C protected body; 2) synthesizing vitamin C protected body etherate; 3) using hydrochloric acid solution to adjust pH to remove protecting group; 4) The product was purified by recrystallization from a weakly polar solvent. In the invention, through the synergistic effect between the stannous chloride and the phase transfer catalyst tetrabutylammonium bromide, the contact between the reactants is more sufficient and the reaction speed is increased.

The invention discloses a processing method of dried lucuma nervosa. The method comprises the steps of taking lucuma nervosa with excellent quality as raw materials; completely cleaning the surfaces of the fruits by using clean water, and grading the fruits; respectively wiping the lucuma nervosa with different grades, then performing air drying, and putting into a container until the fruits are completely mature; peeling the mature lucuma nervosa; then longitudinally cutting into strips, wherein each cut strip is a fruit strip of which two heads are sharp and the length of the middle is 2-3cm; putting the fruit strips into an antioxidant aqueous solution, soaking for 1-2 minutes, draining water on the surfaces, keeping drying for 30-40 minutes at 85-90 DEG C by using an air-blowing drier, then adjusting to 60-65 DEG C, and keeping drying until the water content is less than 20%; performing cooling on the baked dried lucuma nervosa to room temperature, and performing sealed packaging and light-resistant storage. The processing method disclosed by the invention adopts 3-O-ethyl ascorbyl ether with good stability and high safety as an antioxidant in the processing and storage process, thus the guarantee period of the lucuma nervosa can be prolonged, and the edible security of products can be improved.

The invention belongs to the technical field of skin care products, and particularly relates to sheep placenta extract anti-wrinkle and whitening freeze-dried powder and a method. The sheep placenta extract anti-wrinkle and whitening freeze-dried powder comprises the following components in parts by weight of 89 to 94 parts of sheep placenta extract, 3 to 5 parts of mannitol, 1 to 2 parts of trehalose, and 2 to 4 parts of vitamin C ethyl ether. The sheep placenta extract anti-wrinkle and whitening freeze-dried powder disclosed by the invention has a very good improvement effect on cutis laxa and wrinkles.