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.

All 2178 ingredients — page 8 of 91

Humectant
Asparagus Cochinchinensis Root Extract

An extract from the tuberous roots of Asparagus cochinchinensis (Tiandong), a TCM herb distinct from edible asparagus; contains steroidal saponins and polysaccharides with humectant, soothing, and skin-conditioning properties.

humectantskin-conditioningsoothing
Moisturizing polysaccharides and saponinsSoothing anti-inflammatory activityDistinct from common asparagus (A. officinalis)
Antioxidant
Asparagus Officinalis Extract

An extract from asparagus (Asparagus officinalis) containing flavonoids, saponins, and other phytochemicals used for antioxidant and skin-conditioning properties.

AntioxidantSkin-conditioningBrightening
Provides antioxidant protection via flavonoids, saponins, and vitamin C precursorsSupports skin radiance and even toneConditions and softens skin
No significant safety concerns at typical cosmetic concentrations
Humectant
Aspartic Acid

A naturally occurring amino acid that functions as a humectant and is a component of the skin's natural moisturizing factor.

humectantamino-acid
Attracts and retains moistureSupports the skin's natural moisturizing factor (NMF)
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
Antioxidant
Astaxanthin

A red-orange carotenoid pigment derived primarily from the microalgae Haematococcus pluvialis; notable for its exceptional antioxidant capacity and ability to protect against photo-oxidative damage.

antioxidantskin-conditioning
One of the most potent natural antioxidants — estimated 6000× stronger than Vitamin C in singlet oxygen quenchingHelps protect against UV-induced oxidative stress and photoagingSupports skin elasticity and reduces fine lines with regular use
+ Tocopherol+ Ascorbic Acid+ Niacinamide
Antioxidant
Astragalus Membranaceus Root Extract

An extract from the roots of Astragalus membranaceus (huang qi / Chinese astragalus), a key traditional Chinese medicine herb; the hero active in Pyunkang Yul Essence Toner, prized for its antioxidant saponins and skin-conditioning polysaccharides.

antioxidantskin-conditioningbrightening
Rich in saponins (astragalosides) and polysaccharides with antioxidant activitySupports skin conditioning and elasticityBrightening and anti-aging benefits linked to telomerase-activating compounds
Generally well tolerated topically; minimal reported sensitization
Soothing
Astragalus Sinicus Extract
ASTRAGALUS SINICUS EXTRACT

An extract of Astragalus sinicus (Chinese milk vetch), a legume plant used in Japanese traditional medicine (as rengesou). Provides anti-inflammatory, antioxidant, and skin-conditioning benefits in toners and essences.

soothingantioxidantskin-conditioning
Anti-inflammatory and soothing actionAntioxidant protectionTraditional East Asian botanical
+ Artemisia Princeps Leaf Extract+ Dipotassium Glycyrrhizate
Emollient
Astrocaryum Murumuru Seed Butter

A solid butter pressed from the seeds of the murumuru palm (Astrocaryum murumuru), rich in saturated fatty acids that deeply soften and protect dry lips and skin.

emollientocclusive
Deep softening and nourishmentRich in lauric and myristic acid for effective barrier sealingMelts on contact for a smooth, comfortable feel
Rich and occlusive — may not suit very oily or acne-prone skin
Soothing
Atractylodes Chinensis Rhizome Extract

Extract from the rhizome of Atractylodes chinensis, the northern Chinese sibling species of A. lancea and botanically distinct from it. Primary bioactives are sesquiterpenoids atractylon and atractylenolides I–III plus polyacetylenes, which modulate 5-LOX, COX-2, and NF-κB inflammatory pathways. Used predominantly in premium Korean Hanbang essences and creams for soothing and barrier support.

skin-conditioninganti-inflammatoryastringentsoothing
Calms irritated and reactive skin by inhibiting leukotriene and prostaglandin production via 5-LOX and COX-2 pathway suppressionSupports the moisture barrier through polysaccharide content and reduction of barrier-compromising inflammatory cytokinesMay contribute to more even skin tone by downregulating MITF and tyrosinase activity in vitro
Asteraceae cross-reactivity: individuals allergic to ragweed, chrysanthemums, or daisies carry elevated sensitization risk
+ Niacinamide+ Glycerin+ Sodium Hyaluronate
Soothing
Atractylodes Japonica Rhizome Extract

An extract from the rhizome of Atractylodes japonica, a TCM/TKM botanical related to A. macrocephala (Baizhu); contains sesquiterpenes (atractylone, atractylodin) with anti-inflammatory and skin-conditioning benefits.

soothinganti-inflammatoryskin-conditioning
Anti-inflammatory and soothing propertiesAntioxidant sesquiterpenesSkin-conditioning
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
Barrier support
Atractylodes Lancea Root Extract

Extract from the dried rhizome of Atractylodes lancea (Asteraceae), used in TCM as Cangzhu. Principal bioactives are atractylodin (polyacetylene) and sesquiterpenoids β-eudesmol, hinesol, and atractylon, which inhibit 5-LOX and COX-1 inflammatory pathways and support epidermal barrier function. Appears in premium Korean Hanbang formulations paired with other TCM-derived actives for barrier reinforcement and anti-inflammatory benefits.

skin-conditioninganti-inflammatoryantioxidantantimicrobialsoothing
Strengthens the skin's protective barrier, reducing trans-epidermal water loss and improving resilience in stressed or sensitized skinCalms visible redness and inflammatory responses via atractylodin's inhibition of 5-lipoxygenase (5-LOX) and cyclooxygenase-1 (COX-1)Sesquiterpenoids β-eudesmol and hinesol provide antioxidant protection against free radical damage from UV and environmental stress
+ Niacinamide+ Centella Asiatica Extract+ Glycerin
Humectant
Auricularia Polytricha Fruitingbody Extract
AURICULARIA POLYTRICHA FRUITING BODY EXTRACT

Extract from the fruiting body of Auricularia polytricha (cloud ear / wood ear mushroom). Rich in water-soluble polysaccharides and beta-glucans that form a moisture-retaining hydrogel on skin. Similar to Tremella fuciformis polysaccharide in humectant function. Core ingredient in DAMDAM's Snow Mushroom Pore Cleanser.

humectantantioxidantskin-conditioning
Rich in beta-glucans and polysaccharides — superior hydrationNatural alternative to hyaluronic acidFilm-forming and plumping
+ Hyaluronic Acid+ Glycerin
Soothing
Avena Sativa (Oat) Meal Extract
Avena Sativa Meal Extract

An oat-derived extract well known for relieving itch and calming irritated, sensitive skin.

soothingbarrier-support
Soothes itching and irritationSupports the skin barrierCalms sensitive skin
+ Ceramide NP
Soothing
Avena Sativa Kernel Extract

A concentrated extract derived from oat kernels (Avena sativa) rich in avenanthramides and beta-glucan, providing anti-inflammatory, antioxidant, and skin-conditioning benefits; distinct from oat flour, colloidal oatmeal, and oat meal extract.

skin-conditioninganti-inflammatoryantioxidanthumectant
Contains avenanthramides and beta-glucan with potent anti-inflammatory and soothing propertiesProvides antioxidant protectionSupports skin barrier function
Soothing
Avena Sativa Kernel Oil

Oat kernel oil used to soften and calm dry, sensitive skin.

soothingemollient
SoothingSoftening
Soothing
Avene Thermal Spring Water
WATER (AQUA)

Proprietary thermal spring water from Avène, France (Pierre Fabre). Contains naturally occurring silica and a specific trace mineral balance tested for skin tolerability in sensitive and compromised skin.

soothinghumectant
Avène's trademarked thermal spring water — naturally rich in silica with documented soothing and anti-irritant propertiesClinically tested on extremely sensitive and reactive skin; used as the base in all Avène dermatological formulas
UV filter
Avobenzone

A chemical filter that provides UVA protection.

chemical-filter
UVA protection
Degrades in sunlight unless stabilized
Active
Azelaic Acid

A multitasker for redness, acne and pigmentation.

soothing
Calms redness and rosaceaFades pigmentationHelps acne
Temporary tingling on application
+ Niacinamide
Antioxidant
BHT

A synthetic phenolic antioxidant that prevents oxidation of oils and fats in cosmetic formulas, used at very low concentrations.

antioxidantpreservative-booster
Prevents oxidative rancidity in oils and fatsExtends formula shelf life
Possible sensitization at high concentrationsModerate EWG hazard score; ongoing discussion around potential endocrine activity based primarily on high-dose oral data
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
Active
Bacillus/Soybean Ferment Extract
BACILLUS/SOYBEAN FERMENT EXTRACT

A fermented soybean extract using Bacillus species bacteria. Fermentation by Bacillus transforms soy compounds, potentially enhancing isoflavone bioavailability and adding probiotic metabolites. Used in Sana's fermented lotion.

antioxidantskin-brighteningskin-conditioning
Enhanced bioavailability of soy isoflavones via bacterial fermentationProbiotic-associated skin benefitsSkin brightening
+ Soymilk Isoflavones+ Niacinamide
Soothing
Backhousia Citriodora Leaf Extract
BACKHOUSIA CITRIODORA LEAF EXTRACT

An extract from lemon myrtle (Backhousia citriodora) leaves, rich in citral and phenolic compounds. Provides antimicrobial, antioxidant, and soothing properties; also imparts a lemon-like fragrance note.

soothingantioxidantfragrance
Antimicrobial and antioxidant from citral-rich phenolicsLemon-like fragrance noteSoothing for skin
Citral content — potential sensitiser for reactive or sensitive skin; patch test recommended
+ Alpha-Isomethyl Ionone+ Centaurea Cyanus Flower Extract
Emollient
Badger Oil

Oil (fat) rendered from the subcutaneous adipose tissue of Meles meles (Eurasian badger). Composed primarily of oleic acid (~45%), palmitic acid (~28%), linoleic acid (~12%), and stearic acid (~8%). The fatty acid profile is broadly similar to human sebum, contributing to its skin compatibility as an emollient. Accepted as an INCI/CosIng entry (EU CosIng registered). Traditional ingredient in East Asian and Eastern European cosmetics; used in the Tosowoong Enzyme Powder Wash as a skin-conditioning agent.

emollientskin-conditioningocclusive
Rich in oleic, linoleic, and palmitic fatty acids with a composition similar to human sebum — absorbs well into skinTraditional use in East Asian and Eastern European cosmetics as an occlusive emollient for dry, cracked, or rough skinUsed in powder washes as a skin conditioning agent to offset the drying effect of surfactants
Animal-derived ingredient (fat from Meles meles / Eurasian badger) — not suitable for vegan or cruelty-free routines
+ Sodium Cocoyl Isethionate+ Panthenol+ Allantoin