The library

Ingredient library

Every ingredient SkinAtlas knows about — all 2402 of them. What each one does, what it works well with, and what to watch for.

All 2402 ingredients — page 99 of 101

Humectant
Volcanic Soil

Mineral-rich volcanic soil/ash used in cosmetics as a natural oil-absorbing and mildly exfoliating ingredient.

absorbentskin-conditioning
Mineral-rich absorbent marketed for oil control and mild exfoliating texture
Other
Vp/Dimethylaminoethylmethacrylate Copolymer

A high molecular weight, pseudo-cationic copolymer of vinylpyrrolidone and dimethylaminoethylmethacrylate used as a film-former and binding agent in cosmetic formulas.

film-formerbinding agent
Forms a clear, smooth, non-tacky film on skinPseudo-cationic polymer with good binding propertiesUsed to improve texture and cushion feel in serums and treatments
Other
Vp/Eicosene Copolymer

A synthetic copolymer of vinylpyrrolidone and eicosene that forms a flexible, water-resistant film on skin and hair.

Film FormerViscosity ControllingBinding Agent
Improves water resistance in sunscreen and makeup formulationsProvides a smooth, silky skin feelEnhances rub resistance and long-lasting wear
Generally well tolerated; no significant safety concerns identified at use concentrations
Solvent / vehicle
Water
Aqua

The base solvent in most water-phase formulas.

SOLVENT
Dissolves and carries water-soluble ingredients
Barrier support
Wheat Amino Acids

Wheat Amino Acids is a mixture of amino acids derived from the hydrolysis of wheat gliadin or gluten proteins. The amino acid profile of wheat protein is rich in glutamic acid/glutamine, proline, and glycine — all components of the natural moisturizing factor and collagen. In cosmetics it functions as a conditioning humectant that replenishes stratum corneum amino acid content and contributes mild film-forming properties.

skin-conditioninghumectantfilm-forming
Amino acids derived from hydrolysis of wheat protein (primarily glutamine/glutamic acid, proline, glycine) that replenish the natural moisturizing factor (NMF) components of the stratum corneumSmall amino acid molecules penetrate the outer layers of the skin, contributing to moisture retention and the maintenance of the cornified cell envelopeFilm-forming properties from the peptide and amino acid mixture contribute to a smoother, more refined skin texture and reduced transepidermal water loss
Wheat-derived; individuals with wheat protein allergy should exercise caution. Extensively hydrolyzed wheat amino acids have substantially reduced allergenicity versus intact wheat protein, but topical sensitization to wheat protein has been documented in some users of hydrolyzed wheat cosmetics
+ Sodium Hyaluronate+ Panthenol+ Ceramide NP
Emollient
Wheat Germ Oil
Triticum Vulgare Germ Oil

A nutrient-rich oil cold-pressed from wheat kernels high in vitamin E (tocopherols), essential fatty acids, and carotenoids that conditions and protects the skin.

emollientskin-conditioningantioxidant
Rich in vitamin E and essential fatty acidsSoftens and conditions skinAntioxidant support from tocopherols and carotenoids
May be problematic for those with wheat/gluten sensitivity in rare cases
Antioxidant
Wild Strawberry Fruit Extract
Fragaria Vesca Fruit Extract

A vitamin-C- and polyphenol-rich berry extract used as an antioxidant and conditioning agent.

antioxidantskin-conditioning
Antioxidant polyphenolsBrightening and conditioning
Low risk; berry extracts can rarely sensitize
Antioxidant
Wine Extract

Extract from fermented grape wine, concentrated to preserve its antioxidant polyphenol complex (resveratrol, quercetin, anthocyanins, tartaric acid). Used in K-beauty exfoliating and brightening formulas as an antioxidant active, most famously in NEOGEN's Bio-Peel Gauze Peeling Wine series.

antioxidantskin-conditioningbrightening
Rich in resveratrol, tartaric acid, and anthocyanins for potent antioxidant protectionPolyphenol complex supports skin's defense against environmental oxidative stressTartaric acid (an AHA) provides gentle exfoliating effect at pH-adjusted concentrations
+ Vitis Vinifera (Grape) Seed Extract+ Gluconolactone+ Lactobionic Acid
Other
Xanthan Gum

A natural polysaccharide used to thicken and stabilize.

thickener
Gives products their texture
Soothing
Xanthium Strumarium Fruit Extract

An extract from the fruit of Xanthium strumarium (cocklebur), used in traditional Korean medicine and modern cosmetics for its anti-inflammatory and soothing properties at cosmetically safe concentrations.

soothinganti-inflammatoryskin-conditioning
Anti-inflammatory and soothing actionTraditional use in Korean medicine for skin calming
Whole plant and seeds contain carboxyatractyloside; cosmetic extract concentrations for topical use are considered safe
Antioxidant
Xanthophylls

Xanthophylls are a subclass of carotenoids characterized by the presence of oxygen-containing functional groups (hydroxyl, epoxide, carbonyl). Examples include lutein, zeaxanthin, beta-cryptoxanthin, and astaxanthin. In cosmetics, xanthophylls serve as lipid-soluble antioxidants that protect the stratum corneum and underlying skin layers from UV-induced and free-radical oxidative damage. They are used in brightening and anti-aging formulas as part of broad antioxidant complexes.

antioxidantskin-conditioning
Xanthophylls are a class of oxygen-containing carotenoids (including lutein, zeaxanthin, astaxanthin, beta-cryptoxanthin) with potent antioxidant activity against singlet oxygen and free radicalsLipid-soluble antioxidants that integrate into cell membranes and lipid layers of the skin, providing protection against UV-induced and oxidative membrane damageDistinct from beta-carotene (a hydrocarbon carotenoid) in having hydroxyl or epoxide groups that confer higher polarity and stronger singlet oxygen quenching ability
+ Tocopherol+ Ascorbyl Glucoside+ Beta-Carotene
Emollient
Ximenia Americana Seed Oil

Cold-pressed oil from the seeds of Ximenia americana (wild plum), a tree native to Africa and the Americas. One of the richest plant sources of nervonic acid, a long-chain fatty acid involved in myelin synthesis and skin barrier maintenance. Imparts a rich, conditioning texture.

emollientskin-conditioning
Exceptionally rich in nervonic acid (C24:1 omega-9, up to 26%) — a very-long-chain fatty acid that supports ceramide synthesis and skin barrier integrityContains oleic acid and behenic acid esters; used in African beauty traditions for skin conditioning and wound healing
+ Ceramide NP+ Cholesterol
Humectant
Xylitol

A plant-derived sugar alcohol that hydrates skin and supports its moisture barrier.

humectant
Attracts and retains moistureHelps reinforce the hydration barrierImproves softness
+ Hyaluronic Acid+ Glyceryl Glucoside
Emollient
Xylityl Sesquicaprylate

A xylitol ester of caprylic acid used as an emulsifier and skin-conditioning agent with natural antimicrobial properties, common in deodorant and skincare formulas.

emulsifierhumectantantimicrobial
Emulsifying and skin-conditioning ester of xylitol and caprylic acidHas natural antimicrobial/deodorant activityCIR-assessed safe as used
Humectant
Xylitylglucoside

A glucoside of xylitol used as a humectant, typically combined with anhydroxylitol and xylitol in the Actimoist moisturizing complex.

humectantskin-conditioning agentmoisturizer
Attracts and retains moisture in the skinPart of the Actimoist Bio-2 complex; mimics the skin's natural moisturizing factor
No known risks at typical cosmetic concentrations
+ Anhydroxylitol+ Xylitol
Active
Yeast Extract

A complex mixture of proteins, peptides, amino acids, vitamins, and polysaccharides derived from Saccharomyces cerevisiae yeast, used as a skin-conditioning and protecting active.

Skin ConditioningSkin Protecting
Provides skin-conditioning and skin-protecting effectsSupplies nutrients and antioxidants that support collagen production and skin elasticityHelps reduce inflammation and supports skin barrier function
Generally considered safe; CIR assessment found yeast-derived ingredients safe for cosmetic use at reported concentrations
Active
Yeast Ferment Extract

A fermented extract of Saccharomyces cerevisiae (yeast) containing fermentation-derived amino acids, vitamins, and bioactives; the key brightening active in Missha Time Revolution First Essence, distinct from plain yeast extract or specific filtrate forms.

skin-conditioningbrighteningbarrier-supporthumectant
Provides amino acids, B vitamins, and beta-glucans from fermentationBrightens and evens skin toneSupports skin barrier function
Fermented ingredients may not suit highly reactive skin
Active
Yeast Polypeptides

Polypeptides (short-to-medium chain protein fragments) derived from Saccharomyces cerevisiae yeast, used as film-forming and skin-conditioning agents in premium formulas.

Skin conditioningFilm formingMoisturizing
Provides film-forming moisture retentionConditions skin with yeast-derived peptidesSupports skin texture and suppleness
Active
Yeast/Cherry Blossom Ferment Filtrate
SACCHAROMYCES/PRUNUS SERRULATA JUICE FERMENT FILTRATE

A fermentation filtrate produced by culturing yeast with cherry blossom (Prunus serrulata / sakura) juice. Used in premium Japanese skincare for brightening and skin-conditioning properties.

skin-conditioningantioxidantbrightening
Brightening and antioxidant effects from fermented cherry blossomImproves skin texture and radiancePremium Japanese botanical active
+ Niacinamide+ Tranexamic Acid
Other
Yellow 5
CI 19140

A synthetic azo dye (tartrazine) used as a yellow colorant in cosmetics and personal care products, approved under EU and US cosmetic regulations.

Colorant
Imparts a bright lemon-yellow color to cosmetic formulations
Can cause allergic reactions in sensitive individuals, particularly those with aspirin sensitivity; regulated with concentration limits in some jurisdictions
Other
Yellow 6
CI 15985

A synthetic yellow azo dye (CI 15985 / FD&C Yellow No. 6 / Sunset Yellow FCF) used as a cosmetic colorant in skincare and makeup products.

colorant
Provides yellow-orange coloration to cosmetic formulas
Azo dye; regulatory assessments consider it safe at cosmetic concentrations; EU Annex IV permitted colorant
Soothing
Zanthoxylum Piperitum Fruit Extract
ZANTHOXYLUM PIPERITUM PERICARP EXTRACT

Extract from the pericarp of Zanthoxylum piperitum (Japanese pepper / Sansho). Used in Japanese traditional medicine. Contains alkaloids, flavonoids, and terpenes with soothing and antioxidant properties.

soothingantioxidantskin-conditioning
Anti-inflammatory and soothingAntioxidant-richTraditional Japanese botanical
Essential oil form can be sensitizing; extract is generally well-tolerated
+ Dipotassium Glycyrrhizate+ Allantoin
Soothing
Zanthoxylum Schinifolium Leaf Extract

Extract from the leaves of Zanthoxylum schinifolium, a flowering shrub of the Rutaceae family native to East Asia (Korea, Japan, China). The genus Zanthoxylum (pepper trees) is used extensively in traditional medicine — the leaf extract contains alkaloids (chelerythrine, magnoflorine), lignans, and flavonoids with documented antimicrobial and anti-inflammatory effects. Appears in K-beauty acne and trouble-care formulas alongside other botanical actives.

antimicrobialanti-inflammatorysebum-regulating
Alkaloids and lignans exhibit antimicrobial activity against acne-causing Cutibacterium acnesAnti-inflammatory flavonoids help reduce blemish-associated redness and swellingTraditional East Asian use (Korean / Japanese sanshō) for skin clarifying and trouble-care
+ Niacinamide+ Centella Asiatica Extract+ Thuja Orientalis Leaf Extract
Emollient
Zea Mays (Corn) Germ Oil
Zea Mays Germ Oil

A fixed vegetable oil cold-pressed from the germ of corn (Zea mays), used as an emollient and skin-conditioning agent in cleansing oils and moisturizers.

EmollientSkin ConditioningOcclusive
Softens and conditions skinRich in linoleic acid and vitamin E supporting skin barrierProvides a lightweight emollient feel
Potential for comedogenicity; may cause reactions in individuals with corn allergy (rare at topical use levels)