37 results about "Barrier cream" patented technology

The invention discloses a radiation-resistant and moisture-retention sun-blocking skin-care product, which contains 2-5 wt% of oat beta-glucan. The radiation-resistant and moisture-retention sun-blocking skin-care product provided by the invention can be used to raise radiation resistance and immunity of the whole skin and construct healthy skin, has an anti-allergic effect, can effectively prevent / alleviate various inflammation and symptoms such as erythema, and can preserve moisture, minimize fine lines and smoothen skin.

The invention discloses a clear isolation cream. The clear isolation cream contains propylene glycol, butanediol, glycine betaine, sodium chloride, magnesium sulfate, methyl parahydroxybenzoats, para hydroxybenzene propyl ester, EDTA (Ethylene Diamine Tetraacetic Acid) disodium, cetyl PEG / PPG-10 / 1 polydimethylsiloxane, Dimeticone, caprylic acid, triglyceride fatty acid, shea butter, microcrystalline wax, beeswax, polydimethylsiloxane, grape seed oil, sodium hyaluronate, essence, arbutin, adenosine, allantoin, iron oxide yellow, iron oxide red, black iron oxide and water. The evaluation of users and the result of test on the skin of the users show that the isolation cream has better isolation effect, the cream preparation is light and breathable, and the clear isolation cream can effectively isolate harmful matters in make-up products and the air, block ultraviolet rays, protect the skin from being hurt without blocking pores, and can keep the skin supple and full.

The invention relates to a natural spirulina isolation cream. The natural spirulina isolation cream in the formula comprises, by weight, 1 part of wool fat, 8 parts of lipidol, 4 parts of isopropyl palmitate, 6 parts of liquid paraffin, 3 parts of glycerin monostearate, 1 part of albolene, 0.5 part of arlacel 60, 30 parts of a spirulina extracting solution, 13 parts of glycerinum, 0.5 part of polyethylene glycol (400), an appropriate amount of essence, an appropriate amount of a corrosion remover, an appropriate amount of triethanolamine and the remaining deionized water, and the deionized water is added until the total amount is 100 parts. The using amount and the physicochemical property of the raw materials have the synergistic effect, so that the effects of isolating ultraviolet rays and preventing and treating chafing are achieved. The PH value of the natural spirulina isolation cream approximates to the PH value of the skin of the human body, and irritation to the skin is avoided; after the natural spirulina isolation cream is used, a user feels comfortable and soft, and is free of greasy feelings, and the obvious effects of nutrition, sunscreen and aging resistance on the skin are achieved.

The invention discloses a moisture-preserving sun screen. The sun screen comprises following components in parts by weight: 1-5 parts of aloe extract liquid, 20-30 parts of distilled water, 3-8 parts of vegetable fat, 3-8 parts of an emulsifying agent, 3-8 parts of titanium dioxide, 1-3 parts of an antibacterial agent, 1-5 parts of vitamin C, 1-5 parts of a UVA blocking agent and 5-15 parts of xanthan gum. According to the moisture-preserving sun screen, active components including the aloe extract liquid, collagen and the like are particularly added into the components so that the moisture-preserving sun screen has the good moisture-preserving effect; after the moisture-preserving sun screen is used, dry and peeling phenomena do not exist; furthermore, glycyrrhiza uralensis essence is added so that the good sterilization effect is realized and the moisture-preserving sun screen is particularly suitable for using in summer; vitamin C is added so that the moisture-preserving sun screen has a good anti-oxidization effect; the sun screen is the sun screen with a plurality of functions including moisture preservation, bacteria resistance and anti-oxidization.

The present invention discloses a make-up base cream containing cyperus esculentus root oil and a preparation method of the make-up base cream. Cyperus esculentus root oil rich in vitamin E and linoleic acid is combined with whitening, moisturizing and anti-aging ingredients, a modern technology is used to obtain the make-up base cream containing the cyperus esculentus root oil, and the make-up base cream has stable performance, has effects of isolation, whitening, concealing, skin tone adjusting and sunscreen, also has skin-care functions of moisturizing skin, improving skin gloss and tenderizing the skin, repairs damaged skin barrier, alleviates conditions of skin dryness, roughness and aging, and fundamentally solves skin problems.

The invention belongs to the technical field of daily chemical products, and particularly relates to a special anti-radiation make-up base cream for pregnant women. The special anti-radiation make-up base cream is characterized by comprising, by weight, 3-5 parts of oat beta-dextran, 20-30 parts of an aloe extraction liquid, 10-14 parts of a papaya extraction liquid, 9-11 parts of a spiral algae extraction liquid, 5-9 parts of almond oil, 0.3-0.5 part of vitamin E, 5-7 parts of glycerin, 3-5 parts of honey, 8-12 parts of shea nut fruit oil, 3-5 parts of olive oil, and 10-30 parts of purified water. The special anti-radiation make-up base cream of the present invention is not added with any chemical substances, is extracted from the pure nature plants and animals, has effects of mildness on skin, no irritation, improvements of radiation resistance and immunity of the whole skin, health skin building, allergy resistance, effective releasing of all kinds of inflammations, erythema and other symptoms, radiation resistance, nourishing, moisturizing, sun screen and blocking.

The invention relates to a cosmetic composition containing polyurethane dispersion, a preparation method and a purpose thereof. Concretely, the invention relates to a cosmetic composition containing the polyurethane dispersion used as a skin protector.

The invention relates to a natural makeup base. The natural makeup base consists of the following raw materials in parts by weight: 20-30 parts of aloe extract, 5-10 parts of green tea, 8-20 parts of almond oil, 10-18 parts of vitamin E, 8-13 parts of shea butter, 10-15 parts of spirulina, 5-10 parts of mint extract, 20-40 parts of pure water, 5-10 parts of rose hip oil and 10-15 parts of natural propolis. No chemical substance are added in the formula of the natural makeup base, and natural plant essences are selected; the makeup base is mild and non-irritating to skin, has the effects of nourishing, moistening, relieving itching and diminishing swelling, and meanwhile has a sunscreen effect.

The invention relates to the technical field of cosmetics, and discloses a long-acting moisturizing sustained-release microsphere applied to a make-up base and a preparation method of the long-acting moisturizing sustained-release microsphere in order to solve the problems that an existing make-up base is poor in moisturizing and skin care persistence and a sustained-release condition of sustained-release microspheres in the make-up base is harsh. The sustained-release microsphere is internally filled with porous hydrogel and essence; the surface of the sustained-release microsphere is subjected to hole sealing by adopting a photolysis polymer, and the essence in the sustained-release microsphere is slowly released under the expansion and extrusion function of the porous hydrogel under the action of illumination; the essence comprises the following components in parts by weight: 2-5 parts of shea butter, 4-6parts of squalane, 10-15 parts of hyaluronic acid, 1-3 parts of vitamin E and 8-10 parts of n-butyl alcohol. The sustained-release microsphere is filled with the porous hydrogel which swells under an illumination condition, in addition, the porous hydrogel is full of the essence, a polymer which is cracked under the illumination condition is adopted for carrying out the hole sealing on the sustained-release microspheres, so that long-acting sustained release of the essence in the sustained-release microsphere is finally realized, and a relatively good moisturizing and skin-care effect is achieved.

The invention relates to pearl essence containing sun screen. A formula of the pearl essence containing sun screen contains the raw materials in parts by weight: 7 parts of butanediol, 5 parts of glycerine, 4 parts of polydimethylsiloxane, 3 parts of titanium dioxide, 3 parts of cetyl alcohol, 2 parts of coco-glucoside, 7 parts of pearl essence, 3 parts of caprylic / capric triglyceride , 1 part of polydimethylsiloxane, 1 part of polyethylene glycol stearate, 1 part of magnesium aluminum silicate, 0.7 part of vitamin E, 0.3 part of xanthan gum, 0.08 part of methylparaben, 0.05 part of dipotassium glycyrrhetate, 0.03 part of diazolidinyl urea, a proper amount of flavoring essence and the balance of deionized water. According to the pearl essence containing sun screen, the dosage and physicochemical properties of all the raw materials generate a synergistic effect, so that the effects of being natural and easy in absorption and isolating and resisting pollution are achieved. The pearl essence containing sun screen has the pH value close to that of human skin and is non-irritant to the skin; after using the pearl essence containing sun screen, obvious comfortable and soft feeling is generated, and no greasy feeling is generated, so that the pearl essence containing sun screen has obvious effects of carrying out isolating and sun screening and carrying out moistening and whitening.

The invention provides an anti-wrinkle, whitening and sunscreen makeup cream. The anti-wrinkle, whitening and sunscreen makeup cream is prepared from the following raw materials in parts by weight: 150 to180 parts of water, 1.2 to 1.5 parts of N-hydroxysuccinimide, 1.2 to 1.5 parts of magnesium ascorbate, 3.2 to 3.6 parts of hexanediol, 2.2 to 2.5 parts of valine, 2.7 to 3 parts of sodium alginatesulfate, 2.5 to 2.8 parts of didodecyl hydrogen citrate, 2.6 to 3 parts of eucommia seed oil, 2.6 to 3 parts of papaya seed oil, 3 to 3.6 parts of rice bran oil, 2.3 to 2.6 parts of beta-glucan, 2.2to 2.5 parts of sodium lauroyl methylaminopropionate, 2.5 to 2.8 parts of sorbitan palmitate, 2 to 2.4 parts of lyophyllum shimeji extract, 1 to 1.2 parts of L-lactic acid, 6 to 7.2 parts of hydroxypropyl-beta-cyclodextrin, 3 to 3.6 parts of crabapple peel extra, 5 to 6 parts of beta-cyclodextrin and 3.2 to 3.8 parts of methyl glucose sesquistearate. The anti-wrinkle, whitening and sunscreen makeup cream has whitening and moisturizing effects and prominent anti-wrinkle and sunscreen effects.

The invention belongs to the field of medicine and cosmetics and discloses application of dihydromyricetin in the preparation of skin-care products or drugs for preventing and treating optical skin injuries.The skin-care product prepared from dihydromyricetin for preventing and treating optical skin injuries is sun screen, wherein the sun screen comprises: water, propylene glycol, glycerol, trehalose, oat beta-glucan, dihydromyricetin, C20-22 alkyl phosphate, polydimethylsiloxane, isononyl isononanoate and methylparaben.Experiments with a UVA induced HaCaT cell model proves that dihydromyricetin is effective in inhibiting cell ROS generation, reducing expression of apoptosis factors and inflammatory factors, reliving oxidization damage to cells, reducing inflammatory reaction of cells and cell apoptosis and preventing and treating optical skin injuries.The dihydromyricetin has a promising development prospect in the preparation of skin-care products or drugs for preventing and treating optical skin injuries.

The invention discloses non-irritant acne-removing makeup base and a preparation method thereof. The makeup base is prepared from nicandra physaloides extract, nanoemulsion gel, fibroin titanium dioxide nanoparticle microcapsules, pericarpium citri reticulatae, rhizoma dioscoreae, radix paeoniae alba, green tea and water. The R9-EGF recombinant gene is inserted into agrobacterium rhizogenes, the agrobacterium rhizogenes are used for infecting the physalis alkekengi explant, a large amount of R9-EGF composite protein is expressed, and the skin permeability of macromolecular EGF is solved. The nano-emulsion gel is prepared by combining nano-emulsion and nicandra physaloides seed gum, has a polymer network structure and can contain a large amount of water and liquid medicine; and by increasing the content of a thickening agent in the nano-emulsion gel and adjusting the diameter of an internal screen, the nano-emulsion gel becomes an excellent drug carrier. Titanium dioxide nanoparticles are wrapped with fibroin to be prepared into microcapsules, so that the titanium dioxide nanoparticles have good water solubility, the stability of an aqueous solution can be maintained, irritation andallergy to skin are avoided, and the skin is protected against ultraviolet radiation.

The invention discloses a make-up base having anti-aging and lasting moistening functions. The make-up base is prepared from the following components in percentage by mass: 10-20% of a yeast extract,1-9% of honey, 10-20% of an aloe extract, 15-25% of beta-nicotinamide mononucleotide, 1-5% of essence, 1-3% of composite emulsifying wax and 35-45% of deionized water. According to the make-up base inthe invention, the make-up base is mainly composed of a yeast extract, honey, an aloe extract, beta-nicotinamide mononucleotide, essence, composite emulsifying wax and deionized water; by utilizationof the characteristics of the yeast extract and the beta-nicotinamide mononucleotide, the make-up base can be used for recovering human body epidermal DNA cell damage, activating human body epidermalDNA cells, cooperating with beneficial cell regeneration, prolonging the beneficial life cycle, and can effectively improve the anti-aging ability of skin; in addition, the honey, the aloe extract, the essence, the composite emulsifying wax and the deionized water are added to the make-up base; therefore, the effects of whitening, moisturizing, water locking and harmful substance isolating of themake-up base can be improved; and the function of keeping skin moist for a long time is achieved.

The invention provides make-up base containing chamomile. A formula of the make-up base comprises raw materials by weight as follows: 0.03 parts of metallothionein, 9 parts of grape seed oil, 5 parts of stinging nettles, 5 parts of perillyl alcohol, 20 parts of a chamomile extract, 3 parts of rosemary essential oil, 3 parts of black cohosh, 20 parts of lavender essential oil, 0.05 parts of jojoba oil, 1 part of vitamin E, 1 part of collagen, 0.05 parts of amino acid and the balance of distilled water in terms of 200 parts of the raw materials. The usage and physicochemical properties of the raw materials have a synergistic effect, so that the anti-inflammation, anti-allergic, isolating and anti-oxidation effects are realized; the PH value of the make-up base is similar to that of the human skin, and the make-up base is non-irritant to the skin; after using of the make-up base, a user obviously feels comfortable and soft and does not feel greasy, and the make-up base has the obvious effects of relieving itching, diminishing inflammation and protecting skin through isolating.

The invention discloses a preparation method for non-irritating and anti-acne blemish balm cream and belongs to the technical field of preparation of the blemish balm cream. The preparation method includes: mixing snakehead epidermis mucous with peptone and the like; performing sterilization and disinfection; inoculating lactic streptococci prior to standing after vibration; centrifuging a mixture to obtain liquid supernatant; concentrating the liquid supernatant to prepare a non-irritating and anti-acne blemish balm cream base solution for standby use; mixing and drying wile chrysanthemum with fructus forsythiae and the like prior to smashing and sieving to be warmed with distilled water; adding cellulase for enzymolysis and performing vacuum filter to obtain filtrate; stirring a mixture of the decolored-filtrate with the non-irritating and anti-acne blemish balm cream base solution, tallow and the like to obtain the non-irritating and anti-acne blemish balm cream. The preparation method has the advantages of simpleness in procedure, the obtained blemish balm cream is non-iritating and good in anti-acne effect, and blocking of pores of the skin is avoided; the blemish balm cream is good in isolating effect and high in anti-ultraviolet property.

The invention discloses isolation cream for hair dyeing, which is mixed by the following components in parts by weight: 10-50 parts of petrolatum, 5-25 parts of white mineral oil, 1-8 parts of fatty alcohol and wax, 0.5-15 parts of silicone oil, 1-9 parts of emulsifier, 0.5-8 parts of hydrophobic film-forming agent, 0.1-2 parts of antioxidant, 0.1-0.8 parts of chelating agent, 0-1 part of thickening agent, 0.04-1 part of preservative, 0-0.5 parts of essence and an appropriate amount of water. The isolation cream for the hair dyeing can effectively isolate skin from a hair dye, so that the hair dye stained on the skin in a hair dyeing process can be cleaned or wiped easily, and the skin can be protected against dyeing.

The invention belongs to the technical field of cosmetic processing, and particularly relates to a rose repairing makeup base processing technology. The rose repairing makeup base processing technology comprises the steps of rose water extraction, raw material weighing, heating and stirring, mixing and stirring, semi-finished product inspection, canning, finished product inspection, packaging andwarehousing. By adding a humectant to the formula, the air permeability of the makeup base can be improved, so that the skin is prevented from staying in a closed environment after the makeup base isapplied, the skin can be in contact with external oxygen at any time, and the problem that a moisturizing cream needs to be applied before the makeup base is applied is solved. When raw materials of the makeup base are stirred at a high speed, the activity frequency of microorganisms can be increased, resulting in failure of the raw materials of the makeup base. A group A preservative and a groupB preservative are added to the group A material and the group B material respectively, so that the failure of the raw materials of the makeup base is effectively avoided.

The present invention discloses a clean and transparent make-up base cream, wherein the components in the formula comprise, by weight, 2-3 parts of green tea seed oil, 10-20 parts of a cactus extraction liquid, 1-2 parts of white tea, 12-15 parts of bombyx batryticatus powder, 1-2 parts of silica, 1-2 parts of hydrogen oxide, 2-3 parts of an aloe extraction liquid, 3-5 parts of candelilla wax, 1-2 parts of a preservative, and the balance of refined water. The clean and transparent make-up base cream of the present invention adopts the pure natural materials as the raw materials, and has characteristics of mild nature, no irritating on skin, effective cosmetic and dirty air isolation, ultraviolet ray blocking, protection of skin from harm, no pore clogging, and safe use.

A stool management and collection system for acutely and chronically ill patients that prevents stool channeling and the consequential breakdown of patient skin. It comprises a bandage unit, a contour pad, a backing member, an easily connectible and releasable fastener, and a stool holding bag with a tapered upper portion. In addition, a diaper is used to collect patient urine and support the stool holding bag in approximately the same area where an incontinence pad is worn, instead of on the patient's backside as in the prior art. Furthermore, the opening in the bandage unit should leave a minimum distance of approximately three-sixteenths of an inch around the patient's rectal opening for the application of barrier cream or other skin-protecting substance. Super absorbent polymer (SAP) resin may be employed as a part of the system's structure, and a liner may be added to the stool collection bag.

The invention discloses a clear makeup base. The formula consists of the following components in parts by weight: 6-12 parts of a water convolvulus extract, 20-32 parts of a tomato extract, 2-3 parts of green tea seed oil, 1-2 parts of thunberg fritillary bulb, 5-13 parts of a nut extract, 2-3 parts of bis-ethyl hexyl phenol, 1-2 parts of titanium dioxide, 3-5 parts of candelilla wax, 0.1-2 parts of a preservative and a proper amount of refined water. The makeup base disclosed by the invention, which is prepared through the pure natural formula, is mild in nature and free from irritation to skin; the makeup base can effectively isolate cosmetics and dirty air and can also resist ultraviolet ray so as to protect the skin from being hurt; and the makeup base cannot block pores and the makeup base is reliable to use.

The invention discloses isolation cream for hair dyeing, which is mixed by the following components in parts by weight: 10-50 parts of petrolatum, 5-25 parts of white mineral oil, 1-8 parts of fatty alcohol and wax, 0.5-15 parts of silicone oil, 1-9 parts of emulsifier, 0.5-8 parts of hydrophobic film-forming agent, 0.1-2 parts of antioxidant, 0.1-0.8 parts of chelating agent, 0-1 part of thickening agent, 0.04-1 part of preservative, 0-0.5 parts of essence and an appropriate amount of water. The isolation cream for the hair dyeing can effectively isolate skin from a hair dye, so that the hair dye stained on the skin in a hair dyeing process can be cleaned or wiped easily, and the skin can be protected against dyeing.

The invention discloses sunscreen cream for blocking high-temperature electric arc radiation. The sunscreen cream is mainly prepared from avocado oil, bamboo leaf extract, bentonite, salicylic acid, glucuronic acid, seaweed extract, hippophae rhamnoides leaf extract, royal jelly, chitosan quaternary ammonium salt and traditional Chinese medicine extracts. The sunscreen cream is mainly used for protecting skins of welding workers, and is capable of effectively reflecting the radiation of high-temperature electric arc in welding to play roles in blocking and protecting; when the welding workers use the sunscreen cream in the operating process, skins of the welding workers cannot feel uncomfortable or greasy, so that the sunscreen cream is suitable for application in long-time working. The sunscreen cream is prepared by combining plant extracts, is capable of increasing skin nutrition, effectively repairing cells of the sunburnt skin of a human body and accelerating growth of new skin cells due to addition of the traditional Chinese medicine extracts, is suitable for sensitive skins because of no harmful chemical components or heavy metal elements, is not sticky or greasy when being used, is fresh and breathable, and is capable of effectively nourishing skins.

A topical skin protectant formulation containing a barrier cream and an active moiety for protecting warfighters and civilians against all types of harmful chemicals, specifically chemical warfare agents (CWA). The active moiety is an amine, polyalkenimines and / or derivatives. The topical skin protectant offers a barrier property and an active moiety that serves to neutralize chemical warfare agents into less toxic agents.

The invention relates to a formula applied to dendrobium officinale repair and sunscreen cream. The formula comprises the following components in percentage by weight: phase-A components including 1-4% of cyclomethicone, 0.5-3% of S-600, 1-4% of a liquid nonionic water-in-oil silicone emulsifier, 0.2-3% of phytosterol, 5-12% of mineral oil, 1-8% of C12-15 alcohol benzoate, 1-8% of isooctyl palmitate / ethylhexyl palmitate, 2-8% of titanium dioxide, 1-5% of neopentyl glycol diheptanoate and 0.5-3% of HV, phase-B components including 0.5-3% of sodium chloride, 0.05-0.4% of polysorbate-20, 5-15% ofglycerol, 3-9% of butanediol, 0.02-0.1% of sodium hyaluronate, 0.5-3% of a dendrobium officinale stem solution, 0.1-1% of sodium guaiazulene sulfonate and the balance of water, and a phase-C component including 0.4-1% of K350. The invention also discloses a preparation method of the cream. The cream is mild in property, not greasy, easy to smear and free of toxic and side effects, cannot block pores, has a certain repair effect on the skin, and meets the makeup and skin care requirements of modern women.

The invention discloses a special mild sun screen for pregnant women. The prescription of the sun screen consists of the following raw materials in parts by weight: 20 parts of an aloe extract, 15 parts of green tea, 10 parts of vitamin E, 8 parts of spirulina phatensis polysaccharides, 5 parts of apricot kernel oil, 8 parts of sbutyrospermum parkii oil, 7 parts of shea butter, 3 parts of rose hip seed oil, 3 parts of rosa roxburghii tratt, 8 parts of natural propolis and 10 parts of refined water. The sun screen provided by the invention, on the basis of a synergistic effect caused by the dosages and physicochemical properties of the various raw materials, can achieve effects of being mild and non-irritating, blocking sun and isolating. The sun screen provided by the invention, which is close to human skin in PH value, is non-irritant to the skin; people, using the sun screen, can obviously feel comfortable and soft, free from a greasy feeling; and the sun screen is obvious in sun-blocking and moisturizing, isolating and protecting effects.

The invention discloses an isolation spray. The above isolation cream comprises 1-5 parts of an aloe extract liquid, 20-30 parts of distilled water, 3-8 parts of vegetable fat, 3-8 parts of an emulsifier, 3-8 parts of titanium dioxide, 1-3 parts of an antiseptic, 1-5 parts of vitamin C, 1-5 parts of an UVA blocker, and 5-15 parts of xanthan gum. Physical and chemical properties of all above raw materials used according to above proportions have synergism in order to realize free radical removal, moisture retention, bacterium prevention and oxidation prevention effects. The aloe extract liquid, collagen and other effective ingredients added to the isolation spray have a good moisture retention effect, and avoids dryness and peeling reactions after being used; licorice root elite is added to realize a good sterilization effect, so the isolation spray is especially suitable for being used in summer; vitamin C is added to realize a good anti-oxidation effect; and the isolation spray has moisture retention, bacterium prevention and oxidation prevention functions.

The invention discloses an oil-free and refreshing sunscreen makeup cream, and is characterized in that the oil-free and refreshing sunscreen makeup cream comprises the following raw materials by weight: 5-15 parts of coix seed, 1-5 parts of a pearl powder, 15-30 parts of seaweed, 5-10 parts of mung bean, 30-50 ml of milk, 5-15 parts of wheat flour, and 30-50 ml of honey. A facial mask has the whitening and patch-fading efficacies, and has great market potential.

The invention discloses a moisture retaining sun block. The moisture retaining sun block contains the following components: 1-5 parts of an aloe extract, 13-18 parts of grape seed oil, 1-3 parts of clove oil, 5-10 parts of a kiwi berry extract product, 1-5 parts of a UVA blocking agent, 5-15 parts of a tremella extract, 3-8 parts of titanium dioxide, 1-8 parts of an emulsifier, and a proper amount of distilled water. The aloe extract, the grape seed oil, the tremella extract and other effective components are especially added into the components, so that the sun block with moisture retention has good moisture retention and whitening effects, and after usage, drying and scaling reactions do not exist; on the other hand, clove oil which has good bactericidal effects is added, so that the sun block is especially suitable for usage in the summer; 5-10 parts of the kiwi berry extract product which has brightening, spot banishing, acne removing, toxin expelling and aging resisting effects is added. The sun block has a plurality of functions, such as moisture retention, antibiosis, and antioxidation.