The library

Ingredient library

Every ingredient SkinAtlas knows about — all 2178 of them. What each one does, what it works well with, and what to watch for.

366 ingredients in Other — page 6 of 16

Other
Hydroxyethylpiperazine Ethane Sulfonic Acid

A zwitterionic biological buffer (HEPES) used in cosmetics to stabilize formula pH and provide gentle exfoliation by promoting keratinocyte shedding.

ph-adjusterbufferexfoliant
Stabilizes and buffers formula pHGentle exfoliating action by loosening dead skin cellsPromotes cell renewal and skin smoothness
Other
Hydroxypropyl Cellulose
HYDROXYPROPYL CELLULOSE

A cellulose ether with hydroxypropyl groups. Used as a thickener, binder, and film-forming agent in skincare. Provides a smooth, gel-like consistency. Commonly used in Kanebo toners.

viscosity-increasingfilm-formerbinder
Thickens without grittinessFilm-forming and binding
+ Xanthan Gum+ Carbomer
Other
Hydroxypropyl Cyclodextrin

A hydroxypropyl-modified cyclodextrin that forms hollow, cage-like molecular structures to encapsulate actives, improving their stability, solubility, and skin delivery.

encapsulantstabilizersolubilizer
Encapsulates and stabilizes active ingredients including retinol and vitaminsImproves solubility and bioavailability of lipophilic activesReduces irritation potential of encapsulated ingredients
Other
Hydroxypropyl Methylcellulose

A semi-synthetic cellulose ether used as a film-former, thickener, and binder in cosmetic serums, gels, and eye-area products.

film-formerthickenerbinder
Thickens and stabilizes formulasForms a smoothing film on skin
Other
Hydroxypropyl Methylcellulose Stearoxy Ether
HYDROXYPROPYL METHYLCELLULOSE STEAROXY ETHER

A cellulose derivative modified with both hydroxypropyl-methyl and stearoxy groups. Used primarily in Japanese sunscreen formulas (notably Shiseido/Elixir SPF products) to create a smooth, non-tacky film-forming gel texture.

gelling agentfilm-formertexture enhancer
Creates a unique lightweight gel texture in sunscreensImproves SPF formula stability and spreadability
+ Distearyldimonium Chloride+ Dimethicone
Other
Hydroxypropyl Starch Phosphate

A chemically modified starch derivative used as a thickener and film-former to improve formula texture and stability.

thickenerfilm-formertexture-enhancer
Thickens and stabilizes formulasCreates a light, smooth skin feelUsed as a natural-origin alternative to synthetic thickeners
Other
Hydroxypropyltrimonium Maltodextrin Crosspolymer

A quaternized crosslinked maltodextrin polymer; forms a cationic conditioning film on skin that improves texture and provides a silky, smooth feel in premium serums.

film-formingskin-conditioningtexture-modifier
Cationic crosslinked maltodextrin polymer that forms a conditioning film on skinCreates a smooth, velvety after-feel in serums and ampoules
Other
Hydroxystearic Acid

A hydroxy fatty acid derived from castor oil used as a gelling and thickening agent in creams and sticks. Contributes minor emollient properties to formulas.

viscosity-increasingemollientskin-conditioning
Provides structure to cream and balm formulas
Other
Hydroxyundecanoic Acid
HYDROXYUNDECANOIC ACID

A hydroxy fatty acid derivative. Has mild antimicrobial properties. Used in Kanebo's Skin Harmonizer for conditioning and microbiome-supporting effects.

antimicrobialskin-conditioning
Mild antimicrobial activitySkin conditioning
+ Glycerin
Other
Inulin Lauryl Carbamate
INULIN LAURYL CARBAMATE

A lauroyl ester of inulin, a plant-derived polysaccharide (fructan). Functions as a film-former and has prebiotic properties that support the skin microbiome. Creates a powdery, velvety skin feel. Used in Sana's eye cream.

film-formerskin-conditioningprebiotic
Film-forming — creates a smooth, soft-focus skin effectPrebiotic — supports healthy skin microbiomeDerived from natural inulin (plant fiber)
+ Glycerin+ Lactobacillus Ferment
Other
Iron Oxides

Inorganic mineral pigments (red, yellow, and black iron oxides) used as colorants in cosmetics including tinted sunscreens, CC creams, and foundation.

colorantopacifier
Provides color and opacity to cosmetic formulas
Other
Kaolin

A naturally occurring white clay mineral (aluminum silicate) used in cosmetics as an absorbent, opacifier, and texture agent in cleansers, masks, and powders.

absorbentopacifiertexture-enhancer
Absorbs excess oil and impuritiesAdds opacity and body to formulasHelps purify and refine pores with gentle adsorption
Other
Lactose

Lactose is a naturally occurring disaccharide composed of glucose and galactose, found in milk. In cosmetics it appears primarily in powder-format products (enzyme powders, vitamin C powder treatments) as a humectant and powder carrier. It functions as a mild moisture-attracting agent and contributes to the smooth texture and flowability of dry powder formulas.

humectantskin-conditioningbulking
Disaccharide (glucose + galactose) naturally present in milk; in cosmetics it functions as a gentle humectant and powder-binder, contributing to smooth product texture in wash-off powder formatsLow molecular weight sugar with mild moisture-retaining properties; used as a carrier and texture agent in enzymatic cleansing powdersHygroscopic character helps activated powder formulas (like vitamin C powder treatments) maintain a smooth, flowable texture before use
Milk-derived; not vegan. Individuals with severe milk intolerance or casein allergy should exercise caution, though the topical exposure risk from a cosmetic formulation is generally low
+ Ascorbic Acid+ Panthenol+ Allantoin
Other
Lauroyl Lysine

An amino acid-derived ingredient synthesized from lysine and lauroyl chloride, used in cosmetics and color products to provide a silky texture and improve pigment adhesion.

Skin conditioningSlip agentTexture enhancer
Imparts a silky, dry slip feel to powders and pressed cosmeticsImproves adhesion of pigments to skinFilm-forming on skin surface for a smooth feel
Low sensitization potential; generally considered safe
Other
Lauryl Methacrylate/Glycol Dimethacrylate Crosspolymer

A crosslinked copolymer of lauryl methacrylate and glycol dimethacrylate; used as a texture modifier and film-forming agent in premium skincare to improve spreadability.

film-formingtexture-modifier
Creates a smooth, velvety skin feel in emulsion formulasProvides thickening and sensory-enhancing properties
Other
Lauryl Methacrylate/Sodium Methacrylate Crosspolymer
LAURYL METHACRYLATE/SODIUM METHACRYLATE CROSSPOLYMER

A crosslinked copolymer of lauryl methacrylate and sodium methacrylate used by Kao in Biore UV formulas. Forms an oil-absorbing film for the signature watery-essence texture and improved SPF longevity on oily skin.

film-formertexture agentsebum-absorbing
Creates the lightweight, non-tacky watery-gel texture of Biore UVAbsorbs sebum for longer sunscreen wear
+ Ethylhexyl Methoxycinnamate+ Dimethicone
Other
Lauryl PEG-10 Tris(Trimethylsiloxy)silylethyl Dimethicone

A silicone-based PEG emulsifier used to create stable water-in-silicone emulsions, providing a lightweight, silky texture in sunscreens and foundations.

EmulsifyingSkin conditioningFilm-forming
Enables water-in-silicone emulsions for lightweight sensory profilesImparts silky, non-greasy feel to formulations
Low sensitization potential at typical cosmetic use levels
Other
Lauryl PEG/PPG-18/18 Methicone

A silicone-polyether copolymer emulsifier used to stabilize water-in-silicone emulsions, delivering a characteristic lightweight, silky finish in sunscreens and hybrid formulas.

EmulsifyingSkin conditioning
Excellent emulsifier for water-in-silicone systems, critical in lightweight SPF and primer formulationsImparts smooth, non-tacky skin feel
Low sensitization potential at typical cosmetic use levels
Other
Lens Esculenta (Lentil) Seed Extract
Lens Esculenta Seed Extract

An extract from the seeds of Lens esculenta (lentil), used in cosmetics for its skin-protecting, antioxidant, and nourishing properties derived from proteins and vitamins.

Skin conditioningSkin protectingAntioxidant
Nourishes and maintains skin elasticity with proteins, vitamins (E, A, B5), and mineralsAntioxidant protection from tocopherols and carotenoidsPromotes skin hydration and renewal
Low sensitization potential; patch test for those with legume allergies
Other
Lens Esculenta Fruit Extract

An extract from the fruit of Lens esculenta (lentil), rich in polyphenols and oligosaccharides, used in cosmetics for its skin-conditioning, antioxidant, and sebum-regulating properties.

Skin conditioningAntioxidantSebum regulation
Rich in oligosaccharides and phenolics that regulate sebum and minimize pore appearanceAntioxidant protection against environmental stressorsSkin-softening effect
Low irritation potential; patch test recommended for individuals with legume allergies
Other
Lipase

A lipolytic enzyme derived from microbial or plant sources used in cosmetics for controlled release of active ingredients and lipid-processing effects.

enzymeskin-conditioningcontrolled-release
Enzyme that hydrolyzes triglycerides into fatty acids and glycerol for controlled ingredient releaseCan support skin microbiome balance by modulating lipid metabolismUsed in formulations for enzymatic activity at skin temperature
High concentrations may cause mild irritation in sensitive skin
Other
Lonicera Caprifolium (Honeysuckle) Flower Extract
Lonicera Caprifolium Flower Extract

A flower extract from Lonicera caprifolium (Italian honeysuckle), used in cosmetics primarily for its skin-conditioning and mild natural perfuming properties.

Skin conditioningPerfuming
Mild skin-conditioning and softening effectPleasant floral scent adds a natural perfuming note to formulations
Low sensitization potential; fragrance component may cause reactions in highly sensitive individuals
Other
Magnesium Aluminum Metasilicate
MAGNESIUM ALUMINUM METASILICATE

A synthetic clay-like aluminosilicate mineral used as an absorbent, mattifier, and rheology modifier in sunscreens and BB creams.

absorbentrheology-modifiermattifier
Controls excess sebum and shineImproves formula stability and spreadabilityMattifying effect
+ Silica+ Dimethicone
Other
Magnesium Aspartate

The magnesium salt of aspartic acid, used in cosmetics as a skin-conditioning agent to supply magnesium ions that support skin metabolism.

skin-conditioningmineral-supplement
Delivers bioavailable magnesium to skinSupports enzymatic skin processes