The library

Ingredient library

Every ingredient SkinAtlas knows about — all 2277 of them. What each one does, what it works well with, and what to watch for.

All 2277 ingredients — page 57 of 95

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
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
Preservative
P-Anisic Acid

An aromatic carboxylic acid preservative booster used at 0.05–0.3% in acidic formulas to inhibit bacteria and moulds and reinforce primary preservative systems.

preservativepreservative-booster
Broad-spectrum antimicrobial including anti-mould activityBoosts the efficacy of primary preservativesMild antioxidant and anti-inflammatory properties
Effective mainly in acidic systems (pH 4.5–5.5); efficacy drops significantly above pH 5.5Individual sensitivity possible at higher concentrations
Emollient
PCA Dimethicone

A silicone polymer modified with pyrrolidone carboxylic acid (PCA) groups. PCA is an amino acid-derived NMF component naturally present in the skin's stratum corneum. This hybrid ingredient delivers silicone's characteristic smoothing and film-forming properties alongside PCA's water-binding humectancy. Suited to lightweight sleeping masks and hydrating formulas.

skin-conditioningemollientfilm-forming
Combines silicone's smooth, non-greasy skin-conditioning with PCA's humectant propertiesLeaves a silky, comfortable skin feel without heavinessPCA (pyrrolidone carboxylic acid) is a natural moisturizing factor (NMF) component that supports skin hydration
+ Hyaluronic Acid+ Glycerin+ Niacinamide
Surfactant
PCA Ethyl Cocoyl Arginate

A cationic surfactant derived from L-arginine, coconut fatty acid, and PCA (a natural moisturizing factor component) that functions as a mild antimicrobial, conditioner, and antistatic agent suitable for sensitive skin.

surfactantantimicrobialantistatichumectant
Mild cationic surfactant with antimicrobial propertiesConditions skin and hair with low irritation potentialBiodegradable amino acid-derived ingredient
Active
PDRN
Polydeoxyribonucleotide

Polynucleotide fragments (often salmon-derived) popular in K-beauty for skin repair and barrier recovery.

regenerativesoothing
Supports skin repair and recoverySoothes stressed skin
Stronger evidence for injectable use than topical
+ Centella Asiatica+ Panthenol
Other
PEG-10 Dimethicone

A polyethylene glycol-modified dimethicone silicone used primarily as a water-in-silicone emulsifier and skin-conditioning agent that imparts a smooth, silky feel to sunscreens and foundations.

emulsifieremollientskin-conditioning
Stabilizes water-in-silicone emulsionsProvides a silky, lightweight skin feelImproves spreadability of formulas
Other
PEG-10 Glyceryl Stearate
PEG-10 GLYCERYL STEARATE

A PEG-10 ester of glyceryl stearate. Used as a gentle O/W emulsifier in premium Japanese formulations including Shiseido Elixir products.

emulsifierskin-conditioning
Gentle emulsifierImproves emulsion stability
+ Glyceryl Stearate+ Behenyl Alcohol
Other
PEG-10 Hydrogenated Castor Oil

A polyethylene glycol ether of hydrogenated castor oil with approximately 10 ethylene oxide units. Used as a mild emulsifier and solubilizer in cosmetics to incorporate oils, fragrances, and lipophilic actives into water-based formulations.

emulsifiersolubilizersurfactant
Solubilizes oils and fragrance components in aqueous systemsMild emulsifier suitable for rinse-off and leave-on productsDerived from castor oil; low irritation profile
PEG derivatives may cause irritation on compromised barrier skin in high concentrationsMay be contaminated with trace 1,4-dioxane during ethoxylation (manufacturing concern, not end-product)
Surfactant
PEG-10 Isostearate

PEG-10 Isostearate is a polyethylene glycol ester of isostearic acid (C18 branched-chain fatty acid). It is used as a co-emulsifier and solubilizer in cleansing balms, where its hydrophilic PEG chain and lipophilic isostearate chain assist in balm-to-emulsion phase inversion during rinsing. The branched isostearic acid chain maintains the product in a semi-solid (rather than waxy crystalline) state at room temperature.

emulsifyingsolubilizingskin-conditioning
Mild PEG ester of isostearic acid that functions as a co-emulsifier and solubilizer in cleansing balm formulationsIsostearic acid's branched chain prevents crystallization at room temperature, keeping the balm soft and spreadableContributes to the rinsability of anhydrous cleansing formulas alongside the primary emulsifier
Ethoxylated ingredient — trace 1,4-dioxane risk; cosmetic-grade meets regulatory purity standards
+ PEG-20 Glyceryl Triisostearate+ Cetyl Ethylhexanoate+ Synthetic Wax
Emollient
PEG-10 Rapeseed Sterol

A PEGylated derivative of plant sterols extracted from rapeseed oil, used as an emollient and co-emulsifier in cosmetic formulations; the PEGylation improves water dispersibility of the sterol.

EmollientEmulsifierSkin-conditioning agent
Emollient skin feel from sterol fractionImproves emulsion stability as a co-emulsifierPlant-derived sterol provides barrier-supporting properties
Emollient
PEG-100 Hydrogenated Castor Oil
PEG-100 HYDROGENATED CASTOR OIL

A highly ethoxylated (100 EO units) hydrogenated castor oil ester used as a gentle solubiliser and O/W emulsifier. Very water-soluble; widely used in Japanese toners, mists, and essence formulas to solubilise oils and fragrances.

emulsifiersolubilisersurfactant
Highly effective solubiliser for fragrances and essential oilsVery gentle; suitable for sensitive-skin formulas
+ PEG-60 Hydrogenated Castor Oil+ Fragrance
Surfactant
PEG-100 Stearate

A high-polyethylene-glycol-chain ester of stearic acid used as a mild, nonionic emulsifier to stabilize oil-in-water cosmetic emulsions.

emulsifiersurfactant
Stabilizes oil-in-water emulsionsImproves spreadability and texture of creams and lotions
PEG compounds may contain trace 1,4-dioxane impurities; well-managed in modern manufacturing
Humectant
PEG-1000

A polyethylene glycol with ~23 EO units (MW ~1000 Da). Liquid at room temperature. Used as a humectant and co-solvent in Elixir Retino Power Cream.

humectantsolvent
HumectantCo-solvent
+ Glycerin+ Butylene Glycol