52 results about "Cetyl alcohol" patented technology

The invention relates to a modification method of a warm-keeping anti-migration down feather fiber material, and belongs to the technical field of feather fiber treatment. Down feather is activated through sodium bicarbonate and fatty alcohol-polyoxyethylene ether, bottom layer anchoring and protection are carried out through PDA-PEI, dynamic covalent cross-linked network construction is carried out through a modification liquid I, and hydrophobic aerogel loading is carried out through a modification liquid II. The modified liquid I contains polyvinyl alcohol, borax, a water-based anionic aliphatic polyurethane resin dispersion, a BYK-349 surfactant, guar hydroxypropyltrimethyl ammonium chloride and the like; the modified liquid II is prepared from hydrophobic nano silicon dioxide aerogel powder, a KH550 silane coupling agent, a BYK-111 dispersing agent, polyether modified polydimethylsiloxane, cetyl phosphate, absolute ethyl alcohol, ammonia water and the like. A three-layer structure of bottom layer anchoring, middle buffering and surface layer dewatering is formed, and through cooperation of the three layers, the initial filling power retention rate is very high, heat and humidity resistance is achieved, the heat preservation performance is good, durability is good, and performance attenuation is slow.

The present application relates to string maintenance nanoemulsion and its preparation method, belong to string maintenance technical field. The nanoemulsion includes: polysorbate 80, stearic acid sorbitan 60 as main emulsifier, glycerin monostearate, cetyl alcohol, stearyl alcohol as auxiliary emulsifier, liquid paraffin, xanthan gum adjusts consistency, chitosan carries sodium hyaluronate nanoparticle as long-acting moisturizing agent, glycerol, propylene glycol is humectant and can be used as antifreezing agent; hydroxyphenyl ethyl as preservative; can also selectively add essence, the balance is water. The water-soluble ingredients are mixed and stirred uniformly; the oil-soluble ingredients are mixed and stirred uniformly; the oil phase is added to the water phase, and the primary emulsion is stirred and emulsified, and the essence is added after cooling, and the present application is obtained. The present application realizes long-acting moisturizing and nourishing of the string by introducing chitosan carrying sodium hyaluronate nanoparticles, and has the advantages of fine texture, softness and the like.

The invention relates to the field of cosmetics, particularly emulsions, and their uses in the cosmetic care and cleansing of keratinous materials, preferably hair, and skin, preferably the scalp, and more particularly to compositions such as cosmetic compositions in the form of shampoo, conditioner, mask, hair serum, scalp protective serum, or hair and / or scalp scrub. The present invention relates to a cosmetic composition, in the form of an oil-in-water emulsion, comprising: 5 to 25% oil phase by mass relative to the total mass of the composition, and 75 to 95% aqueous phase by mass relative to the total mass of the composition, characterized in that the aqueous phase comprises dehydroxanthan gum, and the oil phase comprises cetyl alcohol and glyceryl stearate citrate. No figure is shown in the abstract.

The application discloses a kind of recombinant collagen glycerol body and preparation method thereof.The recombinant collagen glycerol body is 100 parts by total weight, and is composed of 2.7-3.7 parts of recombinant collagen, 5-15 parts of glycerol, 3.0-4.0 parts of L-alpha-phosphatidylcholine, 0.55-0.75 parts of emulsion regulator cetyl alcohol, 2 parts of preservative 1,2-pentanediol and 0.5 parts of 1,2-hexanediol, 0.05-0.10 parts of thickening agent xanthan gum, 0.1 parts of sodium chloride and 75.05~84.9 parts of purified water, and is prepared by water phase precipitation method.The application uses glycerol body as the carrier of recombinant collagen, which can improve the stability of recombinant collagen on one hand, and promote the transdermal absorption of recombinant collagen on the other hand.

The invention relates to hair conditioning compositions with a combability-improving effect, containing cetyl palmitate in combination with a conditioning agent selected from cationized polygalactomannans from Senna spp., in particular from Senna tora or Senna obtusifolia, and ethylenediamine-N,N'-disuccinic acid (salts) or at least one alkali metal salt or ammonium salt of this acid.

The invention discloses a moisturizing and repairing spray raw material capable of improving a spray effect and a preparation method of the moisturizing and repairing spray raw material. The moisturizing and repairing spray raw material is prepared from the following raw materials: glycerol tri (ethylhexoic acid) ester, glyceryl stearate citrate, stearyl alcohol polyether-21, cetyl alcohol palmitate, allantoin, sodium hyaluronate, panthenol, PCA sodium and water. According to the specific formula, the facial cleanser is prepared from the following raw materials: 58 to 68 percent of glycerol tri (ethylhexoic acid) ester, 13 to 23 percent of glyceryl stearate citrate, 2 to 12 percent of stearyl alcohol polyether-21, 2 to 12 percent of cetyl alcohol palmitate, 0.1 to 0.5 percent of allantoin, 0.01 to 0.2 percent of sodium hyaluronate, 0.01 to 1 percent of panthenol, 0.1 to 1.5 percent of sodium PCA and 1 to 4 percent of water. The light synthetic ester is used as a main body, the water-soluble moisturizing and repairing component is wrapped in the oil-based emulsified particles, the balance of a water phase system of a basic formula is not changed after the water-based emulsified particles are added for spraying, the viscosity fluctuation in winter caused by excessive water phase is avoided, meanwhile, the oil-based particles can carry functional components to be attached to the skin surface and slowly released, and the moisturizing and repairing effect is good. The long-term effect of moisturizing and repairing is improved.

The invention discloses silicone-oil-free makeup-keeping liquid foundation and a preparation process thereof. The liquid foundation is prepared from the following raw material components in parts by weight: 1-2% of an emulsifier, 49-56% of an emollient, 3-6% of a film-forming agent and 40-43% of powder, wherein the emollient is prepared from ethylhexyl palmitate, cetyl alcohol ethyl hexanoate, isododecane, isopropyl myristate and squalane; the prepared liquid foundation does not contain silicone oil, is free of physiological toxicity and irritation, good in air permeability and good in skin feeling, the smearing layering sense and continuity of the liquid foundation are improved, and the liquid foundation is easier to use and more comfortable.

The invention discloses a cosmetic composition, a preparation method thereof and a washing-free hair conditioner spray. The cosmetic composition comprises stearamidopropyl dimethylamine, cetostearyl alcohol and / or cetyl alcohol, a hair conditioner, grease, an antistatic agent and water. The hair conditioner comprises the following components in percentage by mass: 0.4%-0.7% of stearamidopropyl dimethylamine, 1.0%-2.0% of cetostearyl alcohol and / or cetyl alcohol, 3%-7% of a hair conditioner, 1.0%-1.5% of grease and 0.5%-1.5% of an antistatic agent. The preparation method comprises the step of uniformly mixing the materials. The cosmetic composition can maintain high viscosity under low shear force, and presents a non-flowing state or a slightly flowing state; according to the present invention, the viscosity is substantially reduced under the relatively high shearing force, and the low surface tension can be maintained so as to spray out from the non-high pressure spray bottle in the fine mist state, and the uniform smearing is easily achieved, and the excellent storage stability is provided;

The invention relates to freshening and whitening toothpaste and a preparation method thereof. The freshening and whitening toothpaste comprises the following raw materials: hydrated silica, disodium dihydrogen pyrophosphate, a PVM / MA copolymer, color repair particles and an auxiliary agent, the color repair particles are prepared from mannitol, microcrystalline cellulose, CI 74160, cetyl alcohol, corn starch, ethyl cellulose and hydroxypropyl methyl cellulose. Through combination of triple whitening methods, tooth whitening is realized, a color locking film is formed on the surface of the whitened tooth, color spots and color spots are prevented, and the tooth yellowing risk is reduced. Experiments prove that the freshening and whitening toothpaste disclosed by the invention has an effect of freshening breath, the temperature of the inner wall of the oral cavity can be remarkably reduced by 4.5 DEG C by using the toothpaste, and the toothpaste has no irritation to the mucous membrane of the oral cavity and is high in safety.

The present invention provides a stable composition comprising, based on the total weight of the composition: 0.01-1 wt% of dihydroartemisinin; 0.1 to 30 wt% of a nonionic surfactant, wherein the nonionic surfactant is PPG-5-cetyl alcohol polyether-20; and an aqueous carrier acceptable in the personal care field. The invention also relates to a personal care product comprising said composition.

COSMETIC COMPOSITION FOR ACNE CARE An acne care composition includes at least one surfactant comprising sodium cocoyl isethionate and optionally glyceryl stearate SE, at least one glycolipid, at least one beta-hydroxy acid comprising salicylic acid or a derivative thereof, at least one clay comprising optionally kaolin, at least one cationic polymer comprising optionally chitosan, at least one thickener comprising carrageenan, xanthan gum, sclerotium gum, or a combination thereof, at least one cosmetically acceptable solvent comprising water, and comprising glycerin, and at least one additive selected from the group consisting of sodium hydroxide, niacinamide, lactic acid, cetyl alcohol, trisodium ethylenediamine disuccinate, ceramides, and combinations thereof.When applied to the skin by friction, the composition exhibits a maximum shear stress in the range of approximately 100 to approximately 1000 Pa at a shear rate in the range of 1 1 / s to 100 1 / s, followed by a sharp decrease in viscosity when the shear stress is maintained. Figure for the abstract: none.

The invention belongs to the technical field of 3D printing materials, and particularly relates to a rapid alcohol-soluble 3D printing supporting material based on an MJP technology, preparation and application, and the rapid alcohol-soluble 3D printing supporting material is mainly used for supporting forming and efficient removal of complex structural parts. The material is prepared by taking a composite material of polyethylene glycol (PEG), polyvinylpyrrolidone (PVP) and cetanol as an alcohol-soluble base material and supplementing a viscosity modifier, a filler and a functional additive through a specific ratio and a specific process. The supporting material adopts a synergistic effect of a polyethylene glycol base material and an alcohol-soluble toughening agent, and the supporting structure can be quickly dissolved in an alcohol solvent (less than or equal to 30 minutes), so that the surface of a printed piece is effectively prevented from being damaged; the rheological property is optimized through the viscosity modifier, the plug or soft collapse phenomenon is prevented, and high printing stability is achieved; and the material and the cleaning waste liquid are biodegradable, so that the green manufacturing requirement is met.

The invention relates to the field of cosmetics, in particular to cleansing oil and a preparation method of the cleansing oil. Comprising the following components in percentage by weight: 15%-25% of cetyl ethyl hexanoate, 2%-5% of diisostearyl malate, 8%-12% of ethylhexyl palmitate, 15%-25% of isohexadecane, 10%-20% of rice chaff oil, 0.1%-1% of simmondsia chinensis seed oil, 0.1%-1% of meadowfoam seed oil, 0.1%-1% of silybum marianum seed oil, 0.1%-1% of macadamia nut seed oil, 2%-5% of PEG-7 glyceryl cocoate and 10%-15% of polyglycerol-10 dioleate. The invention discloses cleansing oil and a preparation method thereof, and the cleansing oil comprises the following components in percentage by weight: 20-30% of cleansing oil, 3-6% of polyglycerol-dioctanoate, 0.01-0.1% of ascorbyl tetraisopalmitate, 0.05-0.3% of tocopheryl acetate and 0.1-0.3% of bisabolol. The cleansing oil and the preparation method thereof provided by the invention solve the problems that the cleaning efficiency and the mildness of the existing cleansing oil are contradictory, and the existing cleansing oil lacks antioxidant and repairing effects.

The invention relates to the field of daily chemicals, and provides a silicon-free hair care composition added with a water-in-oil emulsifier, which comprises a cationic conditioner, the water-in-oil emulsifier, an oil-in-water emulsifying thickener, a grease conditioner, a humectant and pure water, the water-in-oil emulsifier is prepared from PEG-30 (Polyethylene Glycol) dipolyhydroxy stearate; the oil-in-water emulsifying thickener comprises one or more of hexadecanol, octadecanol and cetostearyl alcohol. According to the silicon-free hair care composition disclosed by the invention, the water-in-oil emulsifier is added into an oil-in-water system to form a similar water-in-oil-in-water composite system, and compared with an oil-in-water system of a common single emulsifier, the silicon-free hair care composition disclosed by the invention can emulsify grease into fine and uniform micro-droplets, and can better permeate hair and nourish and repair damaged hair without greasy and heavy hair.

The invention discloses a massage composition for relieving muscle and neck, shoulder, waist and leg joint pain and a preparation method. The composition is prepared from pallas pit viper oil, a snow lotus herb extract, a pilose antler extract, a dragon's blood extract, garden balsam stem oil, a myrrh extract, saffron crocus oil, vanillyl butyl ether, ginger root oil, tortoise shells, menthol, frankincense oil, cetostearyl alcohol, a stearyl trimethyl ammonium chloride mixture, 2-bromine-2-nitropropane-1, 3-diol, methylparaben and water. The invention further provides a preparation method of the massage composition for relieving muscle and neck-shoulder-waist-leg joint pain and application of the composition. The massage composition for relieving the pain of the muscles, the neck, the shoulders, the waist and the legs shows remarkable effects in the aspects of relieving the pain of the muscles, the neck, the shoulders, the waist and the legs and relieving fatigue, the pain degree of a patient can be effectively relieved, and the life quality of the patient is improved.

The invention discloses a nano cerium oxide-containing cosmetic and a preparation method thereof, and belongs to the technical field of cosmetics, the nano cerium oxide-containing cosmetic comprises the following components by weight: 10-15 parts of an emollient, 2-6 parts of an emulsifier, and 5-10 parts of a sun-screening agent; the emollient is a mixture of isohexadecane, ethylhexyl palmitate, isononyl isononanoate and polydimethylsiloxane, and the emollient is a mixture of isohexadecane and ethylhexyl palmitate; the emulsifying agent is a mixture of PEG-100 (Polyethylene Glycol) stearate, potassium cetyl phosphate and cetostearyl alcohol; the sun-screening agent is a mixture of nano cerium oxide and silicon oxide. According to the invention, nano cerium oxide is adopted as the sun-screening agent, so that the sun-screening film has no characteristic absorption on visible light, is good in permeability and good in ultraviolet ray prevention effect, and can realize full-wave-band protection.

The invention discloses a photothermal stable fluticasone propionate emulsifiable paste preparation and a preparation process thereof, and relates to the technical field of external emulsifiable paste. Comprising the following steps: step 1, (1) adding isopropyl myristate and cetostearyl alcohol into liquid paraffin, mixing, heating and stirring to obtain an oil phase; (2) adding citric acid, sodium citrate, imidazolidinyl urea, a photo-thermal stabilizer and polyethylene glycol hexadecyl-octadecyl ether into deionized water, mixing, heating and stirring to obtain a water phase; (3) adding fluticasone propionate and propylene glycol into deionized water, heating and stirring to obtain a fluticasone propionate solution; and 2, adding the water phase into the oil phase, stirring, adding a fluticasone propionate solution, uniformly mixing, adding propyl hydroxybenzoate and methyl hydroxybenzoate, and standing at room temperature to obtain the fluticasone propionate emulsifiable paste preparation. The fluticasone propionate emulsifiable paste preparation prepared by the invention has good photo-thermal stability and meets the requirements of external emulsifiable paste.

The invention belongs to the technical field of daily cosmetics, and particularly discloses double-continuous-phase cleansing oil and a preparation method thereof. The bicontinuous phase cleansing oil comprises a component A and a component B. The component A is prepared from 1%-10% of PEG-7 glyceryl cocoate, 10%-20% of PEG-20 glyceryl triisostearate, 10%-30% of cetyl alcohol ethyl hexanoate, 10%-30% of coconut oil alcohol-octoate / caprate and 10%-20% of isododecane. The component B is prepared from 1 to 15 percent of methylpropanediol, 1 to 10 percent of glycerol, 0.5 to 2 percent of radix gentianae macrophyllae extract, 1 to 10 percent of butanediol, 0.5 to 2 percent of 1, 2-hexanediol, 0.5 to 3 percent of 1, 2-pentanediol, 0.5 to 2 percent of cordyceps sinensis mycelium powder and the balance of water. According to the present invention, the component A and the component B are mixed to form the continuous and stable three-dimensional network structure with the oil channel and the water channel penetrating through each other, such that the instant emulsification, the easy washing, the refreshing skin feeling and the functional component can be provided so as to achieve the omnibearing cleaning;

The application provides a preparation method of cetyl-PG hydroxyethyl palmitamide and belongs to the technical field of organic synthesis. The method comprises the following steps: (1) preparing an intermediate 1 by reacting cetyl alcohol and 1,3-dichloropropanol under the action of an acid binding agent; (2) preparing an intermediate 2 by reacting the intermediate 1 and ethanolamine under the action of an acid binding agent; and (3) preparing a product by reacting the intermediate 2 and palmitoyl chloride under the action of an acid binding agent and a catalyst. The preparation method of the cetyl-PG hydroxyethyl palmitamide has the advantages of high yield and selectivity, mild conditions, simple process route, short production period, easily obtained raw materials, low cost, high economic benefit, reduced three wastes, green environmental protection, continuous production and wide application prospect.

The invention discloses pigment yellow 83 and a preparation method thereof, and relates to the technical field of pigments, in the pigment yellow 83, 3, 3 '-dichlorobenzidine is taken as a diazo component and is coupled with acetyl-4-chloro-2, 5-dimethoxyaniline, and modified rosin prepared by copolymerization of rosin, monoethyl maleate and cetyl alcohol is introduced in the later stage of reaction; and then mixing with calcium chloride and other raw materials. Carboxyl and long-chain alkyl are introduced into the modified rosin, so that hydrophilic-hydrophobic balance of the surface of the pigment is realized, and compatibility and dispersion stability with a coating system are enhanced; the calcium chloride can promote the pigment to be separated out from a water phase to form solid particles and can be further combined with carboxyl in the modified rosin, so that particle aggregation is inhibited, and the solubility of the modified rosin in pigment molecules is improved. The pigment yellow 83 has the advantages of being good in hydrophobic performance, coloring strength and dispersing performance.

[Problem] The purpose of the present invention is to provide a cosmetic in which nicotinamide is stably blended in a cosmetic in which an oil component is contained in a microemulsion, and in which the stability of the microemulsion is high. [Solution] A cosmetic according to the present invention, the present invention relates to a cosmetic composition comprising (A) a hydrophilic polyethylene glycol hydrogenated castor oil, (B) a lipophilic polyglycerol fatty acid ester, (C) one or more oil components selected from the group consisting of cetyl ethyl hexanoate, caprylic / capric triglyceride, glycerol tri (ethylhexanoate) ester, pentaerythritol tetra (ethylhexanoate) ester, and diphenylsilyloxyphenyltrimethylsiloxane, and (D) nicotinamide, the oil component is present in the microemulsion, and when the cosmetic contains isostearic acid, the blending amount of isostearic acid is 0.15% by mass or less with respect to the total amount of the cosmetic.

Topical pharmaceutical compositions comprising diethylene glycol monoethyl ether (DEGEE) maintained at an acidic pH. The pH of the formulation can be maintained at a pH of less than 6.3, or alternatively less than 6.0. Certain pharmaceutical composition further comprise an emulsifier blend of cetearyl alcohol, dicetyl phosphate, and ceteth-10 phosphate, which is manufactured by Croda under the tradename Crodafos™ CES.

The invention relates to the technical field of cosmetics, and discloses an external-use allergy-relieving itching-relieving bioactive biomimetic membrane skin care preparation and a preparation method thereof.The preparation is prepared from, by weight, red ginseng extract rich in rare ginsenoside, colloidal oat powder, cetostearyl alcohol and distearyl dimethyl ammonium chloride; the preparation method comprises the following steps: firstly, carrying out ultrasonic activation treatment on the red ginseng extract, then carrying out high-temperature emulsification on the oil phase and the water phase, and finally, carrying out programmed control cooling on the obtained emulsion. According to the method, all the components are subjected to in-situ self-assembly on the skin surface to form the layered liquid crystal biomimetic membrane; the biomimetic membrane structure simulates skin cuticle lipid, and can effectively reduce percutaneous moisture loss and repair a skin barrier; meanwhile, as a carrier, rare ginsenoside is promoted to permeate into the skin, so that instant and long-acting allergy-relieving and itching-relieving effects are realized.

The invention provides a phase-change ceramsite aggregate and a preparation method thereof.The method comprises the steps that 1, Yunnan concrete stone is cleaned, put into an acid solution to be soaked, taken out, washed to be neutral and put into a drying oven to be dried to be constant in weight; 2, performing particle size screening on the pretreated Yunnan concrete stone, dividing the Yunnan concrete stone into five particle sizes, and drying the Yunnan concrete stone until the weight is constant; 3, enabling the phase change material to be in a liquid state, hexadecane, dodecanol, decanoic acid, lauric acid and tetradecanoic acid; 4, the phase change material and the cloud concrete stone are placed in a vacuum barrel, and the constant temperature is 60 DEG C; 5, the phase change material is fully adsorbed into internal pores of the cloud concrete stone; 6, after adsorption is finished, taking out the cloud concrete stone, wiping off the residual phase change material on the surface, placing the cloud concrete stone in cold water for condensation, and airing after cooling and solidification; 7, cement paste is prepared, and the surface of the phase change aggregate is evenly wrapped by the cement paste; and 8, mixing geopolymer slurry: mixing the cloud concrete stones with five particle sizes according to a certain proportion, filling into a mold, curing, and removing the mold.

The application discloses a preparation method of an intelligent heat-sensing micro-nano structure body, and comprises the following steps: S1, preparation of a thermochromic compound; S2, preparation of a melamine formaldehyde (MF) prepolymer; S3, preparation of an O / W mixed system; and S4, preparation of the heat-sensing micro-nano structure body. The intelligent heat-sensing micro-nano structure body takes a F-red, bisphenol A and cetyl alcohol compound as a core, takes melamine formaldehyde as a shell, and adds a small amount of silicon dioxide to improve the appearance, so that the influence of the external environment on the thermochromic effect of the material is reduced, and the raw materials are cheap and easy to obtain. The intelligent heat-sensing micro-nano core-shell structure body prepared by the application has the advantages of high thermal stability of the material, high temperature response sensitivity, obvious color change and good economy.

The invention relates to the technical field of cosmetics, and particularly discloses hippocampal peptide hand cream and a preparation method thereof. The hand cream takes hippocampal peptide as a core active component, and further comprises span 80, Tween 80, stearic acid, hexadecanol, glycerol, jojoba oil, rose essential oil and the like. The prepared hippocampal peptide hand cream product is good in moisturizing performance; after a human body trials for 4 weeks, the moisture value, the elasticity value and the whiteness of the skin are remarkably improved, layering and discoloration are avoided through centrifugation, cold resistance, heat resistance and illumination tests, and the safety meets the requirements of cosmetic safety technical specifications.

The invention relates to an abies philippinarum essential oil hand cream and a preparation method thereof. The abies philippinarum essential oil hand cream is prepared from the following raw materials: abies philippinarum essential oil, deionized water, glycerol, polydimethylsiloxane, tocopherol (vitamin E), cetyl alcohol ethyl acetate, sodium hyaluronate, ascorbic acid (vitamin C), nicotinamide and stearic acid. Raw materials are easy to obtain, the cost is low, the process is simple and safe, the skin effect is safe, and manufacturing and industrial production are easy. The hand cream has the effects of inhibiting bacteria, diminishing inflammation, activating blood, whitening, resisting freezing, repairing skin and the like, can effectively solve the skin problem caused by cold weather, and is few in used chemical raw materials, high in safety and stable in physicochemical property.

A composition, for example an oil-in-water emulsion, comprising an amphoteric surfactant, alkoxylated cetyl alcohol, a polar dmg and a preservative, wherein the total amount of preservative present in the composition is about 0.2% w / w or less and is not benzyl alcohol and / or triclosan. The drug may be sodium cromoglicate and / or nedocromil sodium. The formulation may be useful in the treatment of skin diseases such as atopic dermatitis.

FIELD: cosmetics.SUBSTANCE: cosmetic composition in the form of a cream-gel for skin cleansing contains purified water; an emulsifier consisting of cetyl alcohol, glyceryl stearate, PEG-75 stearate, ceteth-20 and steareth-20; glycerin; coco-glucoside; a co-surfactant consisting of purified water, glyceryl oleate and coco-glucoside; cetearyl alcohol; caprylic / capric triglyceride; panthenol; butylene glycol; squalane; oat extract; sodium acrylate / sodium acryloyldimethyl taurate copolymer; cocamidopropyl betaine; cholesterol; ceramide complex including: ceramides NP, AP, AS, NG, glycosphingolipids, hydrogenated lecithin and auxiliary components; fructooligosaccharides; hydroxyacetophenone; preservative consisting of 1,2-hexanediol and caprylyl glycol; tocopheryl acetate; fragrance; arginine and disodium EDTA, in a certain ratio of components, wt.%.EFFECT: relisble removal of impurities from the skin's surface, restoration of the damaged protective barrier of the skin during washing without causing excessive dryness of the skin, relief of irritation and moisturization of the skin.1 cl, 3 tbl, 4 ex

Provided are a novel biomarker for predicting preterm birth and an analysis method therefor. This biomarker for predicting preterm birth is at least one selected from the group consisting of oleic acid, myristic acid, lauric acid, margaric acid, and batyl alcohol in amniotic fluid.