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 12 of 91

Antioxidant
Brassica Oleracea Italica (Broccoli) Extract
BRASSICA OLERACEA ITALICA EXTRACT

An extract from broccoli (Brassica oleracea var. italica) florets or whole plant, valued in cosmetics for its sulforaphane and glucosinolate content that provide antioxidant and anti-inflammatory benefits.

antioxidantsoothingskin conditioning
Rich in sulforaphane, a potent antioxidant with anti-inflammatory activityContains vitamins C and K supporting skin brightness and resilienceGlucosinolates provide additional antioxidant protection
Generally well tolerated; very rare Brassicaceae allergy possible
Antioxidant
Brassica Oleracea Italica Sprout Extract

Extract from sprouted Brassica oleracea italica (broccoli). Broccoli sprouts contain 20–50× more glucoraphanin than mature broccoli, making this extract significantly more antioxidant-active than standard broccoli extract.

antioxidantskin-conditioning
Broccoli sprout extract exceptionally rich in sulforaphane precursors (glucoraphanin) — among the most concentrated natural activators of the Nrf2 antioxidant pathwayPhotoprotective and skin-firming properties via antioxidant enzyme induction
Active
Broussonetia Kazinoki Root Extract

Broussonetia kazinoki (paper mulberry) root extract is a cornerstone brightening ingredient in Korean beauty. Its distinctive prenylated flavonoids — particularly kazinol F and broussochalcone A — inhibit tyrosinase more potently than kojic acid in several comparative in vitro studies, making it highly effective for addressing melasma, PIH, and uneven skin tone. Widely used in K-beauty brightening serums and essences, often paired with niacinamide for complementary melanin inhibition mechanisms.

tyrosinase-inhibitionskin-brighteningantioxidantanti-inflammatory
Prenylated flavonoids (kazinol F, broussochalcone A) are potent tyrosinase inhibitors that reduce melanin synthesis — comparative in vitro studies show stronger tyrosinase inhibition than kojic acid, making this a high-efficacy brightening active for addressing melasma, PIH, and dullnessAntioxidant activity from the flavonoid-rich extract protects against UV-induced oxidative stress, a key driver of post-inflammatory hyperpigmentationAnti-inflammatory properties reduce the inflammatory cascade that triggers excess melanin production after skin stress, complementing the direct tyrosinase inhibition
Generally well-tolerated; prenylated flavonoids may have very mild phytoestrogenic activity in vitro, not considered clinically meaningful at cosmetic topical concentrations
+ Niacinamide+ Tranexamic Acid+ Centella Asiatica Extract
Antioxidant
Buddleja Davidii Extract

Extract from Buddleja davidii (butterfly bush / summer lilac); its high verbascoside content provides strong antioxidant and photoprotective activity, widely used in natural anti-aging formulas.

antioxidantsoothing
Rich in verbascoside and other iridoid glycosides with potent antioxidant activityUV-protective properties help shield skin from photooxidative damage
+ Tocopherol
Fragrance
Bulnesia Sarmientoi Wood Oil
BULNESIA SARMIENTOI WOOD OIL

An essential oil distilled from the wood of Bulnesia sarmientoi (Argentine guaiac / palo santo). Known for its warm, rose-wood fragrance profile. A regulated species under CITES. Used in DAMDAM's moisturizer for its fragrance contribution.

fragranceskin-conditioning
Warm, woody, rose-like fragrance noteMild skin conditioning
Potential sensitizer — guaiac wood oil is a known fragrance allergen in some individualsCITES-regulated species — sustainability concern
Soothing
Bupleurum Falcatum Root Extract
BUPLEURUM FALCATUM ROOT EXTRACT

An extract from the root of Bupleurum falcatum (Chinese thoroughwax, saiko in Japanese), a herb used extensively in East Asian traditional medicine. Contains saikosaponins with anti-inflammatory and adaptogenic properties.

soothingantioxidantanti-inflammatory
Saikosaponins provide anti-inflammatory actionAntioxidant protectionTraditional Japanese/Chinese medicine botanical
+ Dipotassium Glycyrrhizate+ Artemisia Princeps Leaf Extract
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
Solvent / vehicle
Butylene Glycol

A lightweight solvent and mild humectant that improves texture.

humectant
Boosts penetration of other ingredientsLight hydration
Emollient
Butylene Glycol Cocoate

An ester of butylene glycol and coconut-derived fatty acids. Functions as a lightweight emollient and skin-conditioning agent that softens skin without leaving a greasy feel. Commonly used in serums, lotions, and lightweight moisturizers.

emollientskin-conditioning
Lightweight skin softening without heavy residueImproves spreadability and texture of formulasHelps restore skin suppleness
Emollient
Butylene Glycol Dicaprylate/Dicaprate

A diester of butylene glycol with caprylic (C8) and capric (C10) fatty acids, used as a lightweight emollient and skin-feel modifier in creams and lotions.

emollientskin-conditioningsolvent
Lightweight, non-greasy emollient with a silky skin feelSpreads easily and improves formula textureStable ester with low potential for irritation
Emollient
Butylene Glycol Diisononanoate

A diester of butylene glycol and isononanoic acid used as a lightweight emollient that leaves a non-greasy, silky finish.

emollientskin conditioning
Lightweight non-greasy moisturizationSmooth skin feel
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
Fragrance
Butylphenyl Methylpropional

A synthetic fragrance ingredient (lilial) that provides a muguet/lily-of-the-valley note; banned in EU cosmetics since 2022 due to skin sensitization and potential endocrine disruption concerns identified by the SCCS.

fragrance
Provides a muguet (lily of the valley) fragrance note
Banned in the EU since March 2022 (SCCS opinion SCCS/1591/17 — skin sensitizer and potential endocrine disruptor)EU Regulation 2021/1902 prohibits use in leave-on and rinse-off cosmetics in the EU
Emollient
Butyrospermum Parkii (Shea) Butter Extract
Butyrospermum Parkii Butter Extract

A refined, fractionated extract of shea butter concentrated in bioactive compounds, distinct from unrefined Butyrospermum Parkii Butter by its lighter texture and greater stability.

emollientskin conditioning
Rich emollient moisturizationConcentrated bioactive compoundsNon-greasy texture vs. raw butter
Emollient
Butyrospermum Parkii (Shea) Butter Unsaponifiables
BUTYROSPERMUM PARKII BUTTER UNSAPONIFIABLES

The non-saponifiable fraction extracted from Butyrospermum parkii (shea) butter, representing ~7-11% of whole shea. Concentrated in biologically active sterols, triterpene alcohols, and tocopherols that are responsible for shea's anti-inflammatory and barrier-supporting properties.

emollientsoothingskin-conditioning
The concentrated unsaponifiable fraction of shea butter — rich in triterpene alcohols (lupeol, butyrospermol), cinnamic acid esters, and phytosterolsMore potent anti-inflammatory and skin-barrier repairing activity than whole shea butter at equivalent concentrations
+ Ceramide NP+ Panthenol
Emollient
C10-18 Triglycerides

A blend of triglycerides with carbon chain lengths of C10-C18, positioned between short caprylic/capric (C8-C10) and longer chain triglycerides. Provides emollient skin feel and serves as a carrier for other ingredients. Used in Emma Hardie Moringa Cleansing Balm.

emollientskin-conditioningsolvent
Mixed-chain triglycerides derived from C10-C18 fatty acids; provide a silky, emollient feel without heavinessExcellent carrier for active ingredients; commonly used in cleansing balms and oil-based formulas
Surfactant
C12-13 Alketh-9

A non-ionic alkyl polyethylene glycol ether — specifically, a C12-C13 fatty alcohol ethoxylated with approximately 9 units of ethylene oxide. Functions as a mild O/W emulsifier and solubilizer at trace to low concentrations. The C12-13 carbon chain range balances hydrophilicity and lipophilicity for efficient emulsification. Used in lightweight serums and gel formulas where minimal surfactant load is desired.

emulsifyingsolubilizingsurfactant
Mild non-ionic surfactant that solubilizes oils and actives in water-based formulas without disrupting skin barrierLower irritation potential than anionic surfactants at equivalent concentrationsImproves the spreadability and sensory feel of emulsion systems
+ Hydrogenated Lecithin+ Sorbitan Oleate
Humectant
C12-13 Alkyl Glyceryl Hydrolyzed Hyaluronate

A lipid-modified hydrolyzed hyaluronate (C12-13 alkyl glyceryl ether conjugate) that combines humectant hydration with barrier-recovery benefits in the stratum corneum.

humectantemollientbarrier support
Improves skin moisture retentionSupports barrier recoveryReduces transepidermal water loss
Surfactant
C12-13 Pareth-9

A nonionic ethoxylated fatty alcohol surfactant (C12–C13 chain length, 9 moles of ethylene oxide) used as an emulsifier and solubilizer in cosmetic formulations.

EmulsifierSurfactantSolubilizing agent
Helps stabilize emulsionsSolubilizes oils in water-based formulationsImproves spreadability and texture
May cause mild irritation at high concentrationsEthoxylated ingredients may contain trace 1,4-dioxane impurities depending on manufacturing process
Surfactant
C12-14 Alketh-12

An ethoxylated C12-14 fatty alcohol (12 EO units) used as a mild emulsifier and surfactant in cosmetic formulations.

emulsifiersurfactant
Helps blend oil and water phasesImproves formula stability
Surfactant
C12-14 Pareth-12

An ethoxylated fatty alcohol (C12–C14 chain length, 12 moles of ethylene oxide) used as a nonionic emulsifier and surfactant to stabilize emulsions and solubilize oils in aqueous cosmetic formulations.

EmulsifierSurfactantSolubilizing agent
Helps stabilize oil-in-water emulsionsSolubilizes oils in aqueous formulationsContributes to smooth, spreadable texture
May cause mild irritation at high concentrations in sensitive skinEthoxylated ingredients may contain trace 1,4-dioxane impurities depending on manufacturing process
Emollient
C12-15 Alkyl Benzoate

A synthetic ester of benzoic acid used as a lightweight, fast-spreading emollient and excellent carrier for sunscreen actives.

emollientsolvent
Light, non-greasy emollient feelExcellent spreading propertiesActs as a carrier/solvent for UV filters
Emollient
C12-16 Alcohols

A blend of straight-chain fatty alcohols (lauryl C12, myristyl C14, and cetyl C16) derived from vegetable sources, used as an emollient, co-emulsifier, and thickener in creams and lotions.

emollientemulsifierthickener
Softens and conditions skinStabilizes emulsionsImproves cream texture and spreadability