The library

Ingredient library

Every ingredient SkinAtlas knows about — all 2161 of them. What each one does, what it works well with, and what to watch for.

366 ingredients in Other — page 2 of 16

Other
Aluminum/Magnesium Hydroxide Stearate

Inorganic salt used to stabilize emulsions and increase viscosity in cream formulations. A functional excipient with no direct skin-benefit role.

stabilizerviscosity-increasing
Other
Ammonium Acrylates Copolymer

An ammonium salt of an acrylate copolymer used as a rheology modifier and film-former, particularly in toners and lightweight emulsions.

film-formingviscosity-controlling
Anionic polymer used as a thickener and film-former in water-based formulasProvides texture and helps stabilize emulsions
Other
Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer

A crosslinked copolymer of ammonium acryloyldimethyltaurate and beheneth-25 methacrylate used as a rheology modifier and emulsion stabilizer in serums and emulsions.

thickeneremulsion-stabilizerrheology-modifier
Creates stable, elegant gel and emulsion texturesProvides efficient thickening at low use levels
Other
Ammonium Acryloyldimethyltaurate/VP Copolymer

A synthetic copolymer (Aristoflex AVC) used to create elegant, lightweight gel textures and stabilize emulsions.

thickeneremulsion-stabilizer
Creates light, fluid gel texturesStabilizes emulsions without being tacky
Other
Ammonium Polyacryloyldimethyl Taurate

A synthetic acrylic polymer (ammonium salt form of polyacryloyldimethyl taurate) used to thicken and stabilize gel and emulsion formulas.

thickeneremulsion-stabilizer
Creates smooth, lightweight gel and gel-cream texturesStabilizes emulsions
Other
Aquilaria Agallocha Stem Extract

Extract from the stem of Aquilaria agallocha (agarwood/oud); one of the rarest and most prized ingredients in hanbang skincare, contributing to the luxury positioning of The History of Whoo and similar brands.

skin-conditioningantioxidant
Rare luxury ingredient from agarwood stem used in Korean prestige hanbang formulasSesquiterpene compounds provide antioxidant activity
Other
Arundo Donax Stem Extract

Extract from the stems of Arundo donax (giant reed), a fast-growing grass. Contains silica and phenolic antioxidants. Featured in Clarins prestige serums.

skin-conditioningantioxidant
Stem extract from Arundo donax (giant reed) rich in natural silica and polyphenolic compoundsUsed in Clarins Double Serum for skin-resilience support
Other
Asparagine

A non-essential amino acid (L-asparagine) used as a skin-conditioning agent in cosmetics, typically as part of amino acid complex formulas that mimic the skin's natural moisturizing factor.

Skin conditioningAmino acid
Provides amino acid substrate for skin protein synthesisConditions skin
Other
Aspergillus Ferment

A ferment produced by Aspergillus mold (koji), used in cosmetics as a source of enzymes and conditioning metabolites that support skin feel and radiance.

enzyme-sourceskin-conditioning
Conditions skinSource of skin-beneficial enzymes and metabolites
Other
Atractylodes Japonica Root Oil

The essential oil extracted from the root of Atractylodes japonica, a traditional Korean and Japanese medicinal herb (byakujutsu); used for its herbal bioactives in hanbang formulas.

skin-conditioningantioxidant
Essential oil from Japanese atractylodes root used in hanbang skincareContains sesquiterpene lactones with antimicrobial and anti-inflammatory properties
Essential oil component — potential irritant in high concentrations
Other
Bacillus Ferment

The fermentation product of Bacillus bacteria (typically B. subtilis or B. licheniformis), processed to yield a concentrated metabolite fraction. Rich in proteolytic enzymes (subtilisins), lipopeptides (iturin, surfactin), and bioactive peptides. In cosmetics, the enzyme content provides mild exfoliating activity while the lipopeptide fraction has antimicrobial and skin-conditioning properties. Distinct from Lactobacillus Ferment (lactic acid bacteria) and Saccharomyces Ferment.

skin-conditioningprebioticexfoliating
Postbiotic ingredient — ferment metabolites from Bacillus bacteria include enzymes (subtilisin protease), lipopeptides, and bioactive peptides with skin-conditioning activitySubtilisin protease activity provides gentle enzymatic exfoliation that softens skin surface without abrasive irritationSupports skin microbiome balance by providing prebiotic-like substrates that favor commensal bacteria
+ Sodium Hyaluronate+ Ceramide NP+ Allantoin
Other
Baptisia Tinctoria Root Extract

An extract from the root of Baptisia tinctoria (wild indigo), containing isoflavonoids and alkaloids that provide antimicrobial, immunomodulating, and skin-conditioning properties in topical formulations.

antimicrobialskin-conditioningimmunomodulating
Isoflavonoid constituents provide mild antimicrobial and immunomodulating effectsSkin-conditioning properties help improve skin textureAnti-inflammatory activity supports calm, balanced skin
Limited cosmetic use data; the whole root is toxic if ingested — cosmetic extracts at standard concentrations are considered safe for topical use
Other
Barium Sulfate
BARIUM SULFATE

An inorganic mineral (barite) used in cosmetics as an opacifier and to provide a brightening, luminous effect. Used in Elixir Reflet Oshiroi Milk SPF50+ to create a 'white milk' appearance and contribute to UV reflection.

opacifiercolorantUV-attenuator
Provides opacity and luminosity in sunscreen formulasUV-reflecting mineral
+ Titanium Dioxide+ Zinc Oxide
Other
Bentonite

A naturally occurring smectite clay mineral primarily composed of montmorillonite, used in cosmetics as an absorbent, thickener, and pore-cleansing agent in wash-off and clay mask formulations.

absorbentviscosity-increasingskin-cleansingopacifier
Adsorbs excess sebum and impurities from skin and poresThickens and stabilizes clay mask formulationsProvides a pore-cleansing, mattifying effect
Can be drying with frequent use or in high concentrations
Other
Biotin

Vitamin B7 (biotin) used in cosmetics as a skin-conditioning agent, though topical bioavailability and efficacy evidence is limited compared to oral supplementation.

skin-conditioning
Skin conditioningSometimes included for its association with healthy skin and hair
Topical evidence is limited; most biotin research relates to oral supplementation
Other
Bis-Hydroxyethoxypropyl Dimethicone

A hydroxyl-functionalized dimethicone silicone derivative that offers skin conditioning and emollient properties while being more water-compatible than standard dimethicone due to its hydroxyl end groups.

conditioningemolliencyfilm-forming
conditions skin and hairimproves spreadabilityprovides silky skin feel without heavy silicone residue
Other
Bis-PEG-18 Methyl Ether Dimethyl Silane

A dimethyl silane silicone copolymer with two PEG-18 chains that imparts a silky, slip-enhancing feel while being compatible with water-based formulas.

emulsifierhumectantsilicone-copolymer
Combines silicone slip with hydrophilic humectant propertiesImproves skin feel and compatibility with water-soluble ingredients
Other
Blue 1
CI 42090

FD&C Blue No. 1 (CI 42090), a synthetic triphenylmethane dye used to impart blue color in cosmetics, personal care products, and food. FDA-certified colorant used in Darphin Intral's blue-violet serum.

colorant
FDA-certified synthetic triphenylmethane dye providing bright blue coloration
Rare hypersensitivity reactions possibleNot for use in the eye area in some formulations
Other
Boron Nitride

A synthetic mineral powder with a hexagonal crystal structure that imparts a silky, blurring texture and is commonly used in color cosmetics and SPF formulas.

texture agentslip agentopacifier
Soft-focus effectSilky skin feelOil absorption
Other
Butane

A liquefied hydrocarbon gas used as a propellant in aerosol and spray cosmetic products.

propellant
Delivers product evenly from aerosol or spray format
Flammable; avoid high concentrations near flame
Other
Butylene/Ethylene/Styrene Copolymer

A synthetic copolymer of butylene, ethylene, and styrene used as a thickener and film-forming structurant in cosmetic formulas.

viscosity increasingfilm formerstructurant
Thickens and stabilizes formulasImproves texture and spreadability
Other
Butyloctyl Salicylate

A synthetic ester of salicylic acid used primarily as a cosmetic solvent and emollient that also helps solubilize UV filters; not an approved sunscreen active ingredient.

emollientsolventsolubilizer
Lightweight, non-greasy emollient feelSolubilizes and stabilizes UV filters and other activesCan boost SPF through improved dispersion of UV filters
Structurally similar to octisalate (ethylhexyl salicylate); used by formulators to provide UV-boosting without declaring a chemical filter active on the label — may mislead consumers in 'mineral-only' sunscreens
Other
C12-22 Alkyl Acrylate/Hydroxyethylacrylate Copolymer

A synthetic acrylic copolymer that functions as a thickener, film former, and emulsion stabilizer in sunscreen and other cosmetic formulas.

film formerviscosity increasingemulsion stabilizer
Thickens formulasProvides texture and water-resistance
Other
CI 12490

A synthetic azo dye used as a colorant in cosmetics. Provides red to orange coloration. Approved in some jurisdictions for cosmetic use.

colorant
Provides red/orange coloration in cosmetics