The library

Ingredient library

Every ingredient SkinAtlas knows about — all 2402 of them. What each one does, what it works well with, and what to watch for.

All 2402 ingredients — page 60 of 101

Antioxidant
Opuntia Ficus-Indica Extract

A general (non-part-specific) extract from prickly pear cactus (Opuntia ficus-indica) providing betalain antioxidants, polyphenols, and polysaccharides for antioxidant and skin-soothing benefits.

AntioxidantSoothingSkin-conditioningHydrating
Rich in betalain pigments with potent antioxidant activityHelps neutralize free radicals and reduce oxidative stressSoothes and calms irritated skin
Generally well tolerated; rare sensitization possible in individuals with cactus plant allergies
Emollient
Opuntia Ficus-Indica Seed Oil

Cold-pressed oil from the seeds of Opuntia ficus-indica (prickly pear / Barbary fig cactus). Despite only 0.1–1% seed content by fruit weight, the seed oil is exceptionally rich in linoleic acid (~60%) and vitamin E (primarily tocopherols), making it one of the most luxurious and antioxidant-rich botanical oils. The high linoleic acid content supports ceramide synthesis and barrier repair, while the vitamin E content provides potent antioxidant protection.

emollientantioxidantskin-conditioning
Exceptionally high linoleic acid content (~55–62%) — one of the richest plant sources of this barrier-repairing essential fatty acidContains unusually high levels of Vitamin E (tocopherols, ~600–900 mg/kg), making it one of the most antioxidant-rich botanical oilsSterols (β-sitosterol, campesterol) and triterpenes contribute additional anti-inflammatory and skin-softening properties
Expensive and often adulterated — poor-quality sources may be cut with sunflower or argan oil; efficacy varies significantly by source
+ Squalane+ Niacinamide+ Ceramide NP
Humectant
Opuntia Ficus-Indica Stem Extract

An extract from the stem of Opuntia ficus-indica (prickly pear cactus) rich in polysaccharides, flavonoids, and betalain antioxidants, used to hydrate, soothe, and protect skin.

humectantsoothingantioxidant
Rich in polysaccharides for long-lasting hydrationSoothes and calms irritated or stressed skinAntioxidant protection via flavonoids and betalains
Humectant
Opuntia Tuna Fruit Extract

An aqueous extract from the fruit of Opuntia tuna (prickly pear cactus) rich in polysaccharides, betalain pigments, and flavonoids used to hydrate, soothe, and protect skin from oxidative stress.

humectantantioxidantsoothing
Provides hydration via polysaccharides and mucilageAntioxidant protection from betalains and flavonoidsSoothes and calms stressed skin
Humectant
Opuntia Vulgaris Extract

An extract from Opuntia vulgaris (common prickly pear cactus) used as a humectant and soothing agent, rich in polysaccharides and antioxidant phenolic compounds.

humectantsoothingantioxidant
Hydrates via mucilaginous polysaccharidesSoothes irritated skinAntioxidant protection
Antioxidant
Opuntia Vulgaris Leaf Extract

Extract from the pads (cladodes) of Opuntia vulgaris, a common prickly pear cactus. Contains betalain pigments, flavonoids, and polysaccharides that deliver antioxidant and anti-inflammatory benefits. Distinct from Opuntia Tuna Fruit Extract (made from the fruit).

antioxidantsoothingskin-conditioning
Rich in betalains, flavonoids, and polyphenols providing antioxidant protection against oxidative stressAnti-inflammatory properties help soothe and calm reactive or irritated skinUsed in Sunday Riley Good Genes as part of the botanical brightening complex
+ Lactic Acid+ Niacinamide
Antioxidant
Orange Peel Extract

Orange Peel Extract is a generic INCI designation for an extract derived from the peel (flavedo and albedo) of orange fruit (Citrus sinensis or Citrus aurantium). The peel is particularly rich in flavonoids (hesperidin, nobiletin, tangeretin), limonoids, and carotenoids with antioxidant and anti-inflammatory activity. Used in cleansing and brightening formulas as an antioxidant botanical.

antioxidantskin-conditioningastringent
Citrus peel extract rich in hesperidin (a flavanone glycoside), nobiletin, limonoids, and carotenoids with antioxidant and anti-inflammatory propertiesHesperidin in orange peel provides vascular and capillary-strengthening activity alongside antioxidant effectsAstringent phenolic compounds (tannins) in the peel contribute mild pore-tightening and oil-control properties
Non-specific 'Orange Peel Extract' INCI may contain trace levels of furanocoumarins from the peel — phototoxicity risk exists but is significantly lower than for expressed orange peel oil
+ Tocopherol+ Niacinamide+ Centella Asiatica Extract
Emollient
Orbignya Oleifera Seed Oil

A cold-pressed oil from the seeds of the babassu palm (Orbignya oleifera) rich in lauric acid (~50%) and myristic acid, prized in cleansing oils for its light, non-greasy emollient feel and mild cleansing activity.

emollientskin conditioningcleansing
Rich in lauric and myristic fatty acids providing light emollient textureNon-greasy skin feel suitable for oily and combination skinSupports skin barrier and provides cleansing action in oil-based cleansers
Contains lauric acid; individuals with lauric-acid sensitivity should patch test
Antioxidant
Origanum Majorana Leaf Extract

An extract from the leaves of sweet marjoram (Origanum majorana) in the mint family, rich in rosmarinic acid, used for antioxidant and soothing properties in skincare.

antioxidantsoothing
Rich in rosmarinic acid and flavonoids with antioxidant activitySoothes and conditions skinHelps defend against environmental stress
Lamiaceae (mint-family) plant; may sensitize those with mint-family plant allergies
Antioxidant
Origanum Vulgare Flower/Leaf/Stem Extract

Whole-plant extract from Origanum vulgare (oregano). Exceptionally rich in antioxidant polyphenols (rosmarinic acid, quercetin) and phenolic monoterpenes (carvacrol, thymol). Used at trace concentrations in acne and trouble-targeting formulas for its antimicrobial and antioxidant benefits.

antioxidantantimicrobialanti-inflammatory
Among the highest natural antioxidant activity of any culinary herbCarvacrol and thymol provide potent antimicrobial activityRosmarinic acid content supports anti-inflammatory skin benefits
High phenol content may irritate sensitive skin at elevated concentrations
+ Niacinamide+ Centella Asiatica Extract
Antioxidant
Origanum Vulgare Leaf Extract

An extract from the leaves of common oregano (Origanum vulgare) rich in rosmarinic acid, carvacrol, and thymol, used for its antioxidant and antimicrobial properties in skincare formulations.

AntioxidantAntimicrobial agentSkin-conditioning agent
Strong antioxidant activity from rosmarinic acid, carvacrol, and thymolAntimicrobial properties may help with acne-prone skinAnti-inflammatory polyphenols soothe irritation
High concentrations may cause skin irritation; carvacrol and thymol are potent phenolsPatch test recommended for sensitive skin
Other
Ornithine

Ornithine (L-ornithine) is a non-proteinogenic amino acid and key intermediate in the urea cycle. In skin biology, it serves as a precursor to proline and hydroxyproline (essential amino acids in collagen) and contributes to the natural moisturizing factor of the stratum corneum. In cosmetics it is used as a skin-conditioning humectant, typically at low concentrations in premium formulas alongside other amino acids and actives.

skin-conditioninghumectant
Amino acid that acts as a skin-conditioning agent, contributing to surface smoothness and moisture balance in formulationsParticipates in the natural moisturizing factor (NMF) pool of the stratum corneum, contributing to natural hydration maintenanceMetabolic precursor to proline and hydroxyproline (collagen amino acids) — in vitro evidence suggests ornithine supplementation may support collagen turnover in skin cells
+ Arginine+ Glycerin+ Sodium Hyaluronate
Other
Ornithine HCL

The hydrochloride salt of ornithine, a non-essential amino acid naturally involved in the urea cycle. Included in Filorga Time-Filler 5-XP's NCEF (New Cellular Encapsulated Factor) complex alongside a full suite of amino acids, vitamins, and coenzymes.

skin-conditioning
Hydrochloride salt of ornithine, a non-essential amino acid involved in the urea cycleUsed in Filorga's NCEF complex as part of the complete amino acid panel that mimics injectable skin-conditioning treatments
Other
Orthosiphon Stamineus Extract

A leaf extract of the Java tea plant (Orthosiphon stamineus) that inhibits 5-alpha reductase to reduce sebum production and improve the appearance of enlarged pores and oily skin.

sebum-controlpore-minimizingastringent
Reduces sebum production and oily shineMinimizes the appearance of poresHelps even skin tone and radiance
Emollient
Oryza Sativa (Rice) Bran Wax
Oryza Sativa Bran Wax

A plant-derived wax pressed from rice bran, used to firm up balm and stick formulations while providing a lightweight emollient finish.

emollientthickeningtexture-enhancer
Adds firm, stick-like texture to balmsNon-greasy occlusive emollient
Antioxidant
Oryza Sativa (Rice) Extract
ORYZA SATIVA EXTRACT

Extract from Oryza sativa (rice); provides ferulic acid, gamma-oryzanol, and saccharides for antioxidant protection and brightening. One of the foundational ingredients in K-beauty and J-beauty.

antioxidantbrighteningskin-conditioning
Traditional East Asian brightening ingredient rich in ferulic acid, oryzanol, and B vitaminsAntioxidant protection and mild brightening of uneven skin tone
+ Niacinamide
Antioxidant
Oryza Sativa (Rice) Germ Extract

An extract derived from the germ of rice (Oryza sativa), rich in tocopherols and phytosterols that condition skin and provide antioxidant protection.

conditioningantioxidantskin-softening
Conditions and softens skinProvides antioxidant protection via vitamin E and phytosterolsHelps improve skin texture and elasticity
Emollient
Oryza Sativa (Rice) Germ Oil
ORYZA SATIVA (RICE) GERM OIL

Oil cold-pressed from the rice germ (the small embryo of the rice grain). Richer in tocotrienols, ferulic acid, and gamma-oryzanol than rice bran oil. A lightweight, antioxidant-rich carrier oil.

emollientantioxidant
Rich in tocotrienols and ferulic acid — antioxidant protectionLightweight emollientTraditional Japanese beauty oil
+ Rice Bran Oil+ Tocopherol
Emollient
Oryza Sativa Bran Oil

Rice bran oil, an antioxidant-rich, lightweight emollient.

emollientantioxidant
ConditioningAntioxidant-rich
Antioxidant
Oryza Sativa Lees Extract
ORYZA SATIVA (RICE) LEES EXTRACT

Extract from the solid by-products (lees/kasu) of rice fermentation used in sake production. Contains concentrated ferulic acid, amino acids, and natural kojic acid precursors.

antioxidantskin-conditioningbrightening
Extract from rice fermentation lees (sake kasu) rich in amino acids, vitamins, ferulic acid, and kojic acidTraditional Japanese brightening and antioxidant ingredient; helps even skin tone and supports moisture retention
+ Niacinamide
Humectant
Oryza Sativa Rice Bran Water

An aqueous extract from rice bran containing water-soluble vitamins, ferulic acid, and amino acids used as a lightweight humectant and skin-brightening agent.

humectantsoothing
Provides lightweight hydrationSoothes skin with ferulic acid and vitaminsBrightening effects from rice-derived actives
Antioxidant
Oryzanol

Gamma-oryzanol, a mixture of ferulic acid esters derived from rice bran oil, used in cosmetics for its strong antioxidant activity, mild secondary UV-filtering properties, and ability to improve skin barrier function.

antioxidantUV-absorbingbarrier-strengthening
Neutralizes free radicals to prevent premature agingNaturally absorbs UV-A and UV-B radiation as secondary photo-protectionStimulates sebaceous glands to strengthen the skin barrier
Emollient
Oxycoccus Palustris (Cranberry) Seed Oil
Oxycoccus Palustris Seed Oil

A rare Arctic cranberry seed oil exceptionally rich in balanced omega fatty acids and antioxidants, providing comprehensive anti-aging and barrier-supporting benefits.

emollientantioxidantskin-conditioning
Rich in omega-3, omega-6, and omega-9 fatty acids for complete skin barrier supportHigh antioxidant content with tocotrienols (potent vitamin E)Anti-aging properties reduce fine lines and prevent wrinkles
Other
Ozokerite

A naturally occurring paraffinic mineral wax used as a thickener, binder, and texture agent in anhydrous formulations such as sun sticks, lip balms, and cream foundations.

viscosity-increasingbinding-agentwax
Provides structure and hardness to stick and balm formulationsStabilizes emulsions and suspends pigmentsInert and well-tolerated on skin