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 16 of 91

Fragrance
Cedrol

A naturally occurring sesquiterpene alcohol found in cedar essential oil and other conifers, used in cosmetics primarily as a fragrance ingredient with a warm, woody, cedarwood character.

Fragrance ingredientSkin-conditioning agent
Contributes a warm, woody, cedar-like fragrance note
Potential skin sensitizer at higher concentrationsMay be listed as a fragrance allergen in some regulatory frameworks
Fragrance
Cedrus Atlantica Bark Oil

An essential oil steam-distilled from the bark of Cedrus atlantica (Atlas cedar), used primarily as a woody fragrance ingredient with warm, balsamic notes.

FragranceSkin conditioning
Provides a warm, woody, cedarwood fragrance characterMild antimicrobial properties
Potential skin sensitizer; contains sesquiterpenes that may cause allergic reactionsShould be used at low concentrations (IFRA guidelines apply)
Other
Cellulose
CELLULOSE

The primary structural polymer of plant cell walls, used in cosmetics as a thickener, stabiliser, and texture agent. Entirely inert and gentle on skin.

thickenertexture enhancerstabiliser
Improves texture and spreadabilityCreates a smooth, even skin feel
+ Carbomer+ Xanthan Gum
Other
Cellulose Gum

Carboxymethylcellulose (CMC), a water-soluble cellulose derivative used to thicken, stabilize, and texture aqueous cosmetic formulas.

thickeneremulsion-stabilizer
Thickens and stabilizes aqueous gels, serums, and emulsionsImproves product texture and suspension
Soothing
Centaurea Cyanus Flower Extract
CENTAUREA CYANUS FLOWER EXTRACT

An extract from cornflower (Centaurea cyanus) blooms, rich in anthocyanins, apigenin, and quercetin. Used in cosmetics for gentle soothing, anti-inflammatory, and antioxidant properties. Common in eye-area and sensitive skin products.

soothingantioxidantskin-conditioning
Soothing and anti-inflammatory from anthocyanins and flavonoidsGentle for sensitive and irritated skinTraditional European botanical
+ Dipotassium Glycyrrhizate+ Fagus Sylvatica Bud Extract
Antioxidant
Centaurea Cyanus Seed Extract
CENTAUREA CYANUS SEED EXTRACT

Extract from the seeds of the cornflower (Centaurea cyanus), distinct from the more common flower extract. The seed extract is used in Elixir serums for antioxidant conditioning.

antioxidantskin-conditioning
Antioxidant and conditioning from seed-derived polyphenolsDistinct profile from cornflower flower extract
+ Centaurea Cyanus Flower Extract+ Tocopherol
Soothing
Centella Asiatica
Centella Asiatica Extract

A calming botanical (cica) prized for soothing stressed skin.

Calms irritationSupports barrier repairAntioxidant
+ Panthenol+ Niacinamide
Active
Centella Asiatica Callus Extracellular Vesicles

Plant-cell-culture-derived extracellular vesicles (exosome-like) from Centella asiatica callus, carrying bioactive lipids, proteins, and miRNAs that stimulate skin repair, collagen synthesis, and barrier recovery.

regenerativesoothingbarrier-support
Promotes barrier recovery and collagen synthesisSoothes UV-induced and environmental inflammationNano-sized lipid vesicles enhance skin penetration and active delivery
Emerging biotechnology active; long-term safety and standardization data are still developing
Soothing
Centella Asiatica Flower/Leaf/Stem Extract

A comprehensive extract from the aerial portions (flower, leaf, and stem) of Centella asiatica — distinct from root-focused or unspecified 'Centella Asiatica Extract'. Delivering the full spectrum of the plant's triterpenoid saponins alongside flavonoids and polyphenols from all above-ground tissues. Particularly popular in Laneige's barrier-focused sleeping mask line for its soothing and barrier-repairing benefits.

soothinganti-inflammatorybarrier-supporthealing
Whole aerial plant extract (flower, leaf, stem) delivers the full triterpenoid complex: asiaticoside, madecassoside, asiatic acid, madecassic acidBroad-spectrum anti-inflammatory activity reduces redness and irritation-related skin stressSupports wound healing and collagen synthesis via madecassoside and asiatic acid activity
+ Madecassoside+ Asiaticoside+ Panthenol
Soothing
Centella Asiatica Leaf Water

The distilled water (hydrosol) from Centella asiatica leaves, used as a soothing and hydrating water-phase ingredient distinct from concentrated Centella asiatica extract.

soothinghumectant
Soothes and calms sensitive or irritated skinLight hydrationCarries naturally occurring cica phytochemicals
Soothing
Centella Asiatica Meristem Cell Culture

A plant stem-cell culture medium from the meristem (undifferentiated growing tissue) of Centella asiatica, harvested for its soothing, antioxidant, and barrier-supporting phytochemicals.

soothingantioxidantbarrier-support
Delivers soothing and antioxidant phytochemicals from cultured Centella cellsMay support barrier repair
Emerging biotechnology ingredient; long-term topical safety data still limited
Soothing
Centella Asiatica Root Extract

Extract specifically from the roots of Centella asiatica — functionally distinct from the general 'Centella Asiatica Extract' (which typically derives from aerial parts) and from 'Centella Asiatica Leaf Extract'. Roots contain higher concentrations of polysaccharides and a different triterpenoid ratio. Used in multi-part centella extractions (leaf + root + flower/stem) to deliver the full phytochemical breadth of the plant.

soothinganti-inflammatoryskin-conditioning
Root-specific extract with a different phytochemical profile than aerial parts — higher in polysaccharides and root-specific triterpenoidsComplements leaf and full-plant centella extracts in multi-part centella formulas for comprehensive cica activityAnti-inflammatory flavonoids and triterpenoids support barrier repair and skin-calming
+ Centella Asiatica Extract+ Centella Asiatica Leaf Extract+ Madecassoside
Barrier support
Ceramide
CERAMIDE

A generic term for ceramide lipids — the primary lipid component of the skin's stratum corneum. When used as an INCI ingredient without a specific number designation, typically indicates a ceramide complex. Essential for skin barrier integrity.

barrier-supportskin-conditioning
Core component of skin barrier — reduces water lossRestores damaged barrierImproves skin hydration
+ Cholesterol+ Fatty Acids+ Hyaluronic Acid
Barrier support
Ceramide AG
CERAMIDE AG

Ceramide AG is the INCI name for Ceramide 6-II, characterized by an alpha-hydroxy fatty acid (A) and dihydrosphingosine (G). One of the naturally occurring ceramides in the stratum corneum. Used in multi-ceramide formulations (Matsuyama Hadauru, Kiku-Masamune, Ishizawa) to restore barrier.

barrier-supportskin-conditioning
Key skin barrier lipid — reduces transepidermal water lossRestores damaged barrierCeramide 6 (AG) type
+ Ceramide NP+ Ceramide EOP+ Cholesterol
Barrier support
Ceramide AP

A barrier ceramide that works best alongside other ceramides.

ceramide
Restores barrierSupports resilience
+ Ceramide NP+ Cholesterol
Barrier support
Ceramide AS

A ceramide class containing an alpha-hydroxy fatty acid bonded to a sphingosine base (alpha-hydroxy fatty acid + sphingosine). Present naturally in the outer layers of human skin and contributes to the intercellular lipid lamellar structure. Typically paired with Ceramide NP, Ceramide AP, and Cholesterol in barrier repair formulations.

ceramide
Strengthens the skin barrier as one of the naturally present ceramide classes in the stratum corneumSupports moisture retention and reduces water lossComplements Ceramide NP and Ceramide NS in multi-ceramide barrier repair systems
+ Ceramide NP+ Ceramide AP+ Cholesterol
Barrier support
Ceramide EOP

A long-chain ceramide important to barrier structure.

ceramide
Restores barrierLocks in moisture
+ Ceramide NP+ Cholesterol
Barrier support
Ceramide NG

A skin-identical ceramide (N-acylated sphinganine; formerly ceramide 2) that reinforces the lamellar lipid barrier to reduce transepidermal water loss and soothe dry, flaking skin.

ceramidebarrier-support
Replenishes skin barrier ceramidesReduces water loss and restores supplenessImproves dry and flaking skin
Barrier support
Ceramide NP

A skin-identical lipid that rebuilds the barrier.

ceramide
Restores barrierReduces water lossCalms dryness
+ Cholesterol+ Niacinamide
Barrier support
Ceramide NS

One of the nine ceramide classes found naturally in human skin (non-hydroxy fatty acid + sphingosine base). Works synergistically with other ceramides and cholesterol to form the intercellular lipid matrix of the stratum corneum. Used in barrier-repair moisturizers alongside Ceramide NP and Ceramide AP.

ceramide
Restores skin barrier by replenishing a key naturally occurring ceramide classReduces transepidermal water lossSupports barrier resilience alongside Ceramide NP and Ceramide AP
+ Ceramide NP+ Ceramide AP+ Cholesterol
Other
Ceratonia Siliqua (Carob) Gum
CERATONIA SILIQUA GUM

A natural galactomannan polysaccharide from the seeds of Ceratonia siliqua (carob tree). Used as a thickener, emulsifier, and film-former in natural and eco-certified formulas.

thickeningemulsifyingfilm-forming
Natural thickener from carob seedsImproves formula stabilitySmooth skin feel
+ Xanthan Gum+ Glycerin
Surfactant
Ceteareth-20

A nonionic ethoxylated fatty alcohol emulsifier (PEG-20 cetyl/stearyl ether) widely used to create stable, smooth oil-in-water creams and lotions.

emulsifierthickener
Effective oil-in-water emulsifier with a high HLB (~15)Thickens and stabilizes emulsions
Ethoxylated ingredient — trace 1,4-dioxane contamination possible unless processed with vacuum stripping; CIR considers safe as formulated
Surfactant
Ceteareth-6

A nonionic ethoxylated cetyl/stearyl ether emulsifier with a low ethoxylation level (6 EO units), typically paired with a higher-HLB co-emulsifier to build stable cream textures.

emulsifier
Stabilizes oil-in-water emulsions when used in low-HLB blendsContributes to rich cream textures
Ethoxylated ingredient — trace 1,4-dioxane possible unless vacuum-stripped; CIR considers safe as formulated
Emollient
Cetearyl Alcohol

A fatty alcohol that softens skin and stabilizes emulsions.

emulsifier
SofteningGives creams a smooth texture