✦ Ingredient Glossary

Ingredients starting with O

1,690 ingredients with safety ratings, purposes, and interaction warnings. Page 1 of 9.

O-CRESYL ACETATE

A synthetic fragrance ingredient with a phenolic odor.

O-Cymen-5-01

An antimicrobial and antioxidant agent, also known as Isopropyl Cresols.

O-Cymen-5-Ol

An antimicrobial and antioxidant agent, also known as Isopropyl Cresols.

O-CYMEN-5-OL

An antimicrobial and antioxidant agent, also known as Isopropyl Cresols.

O-Phenylphenol

A preservative and antimicrobial agent, can be irritating in higher concentrations.

O-Tolyl Biguanide

A chemical compound, its use in cosmetics is not well-established and may require caution.

O,O'-(Ethenylmethylsilylenedi[(4-methylpentan-2-one)oxime]

A silicone-based compound, likely used as a film-former or conditioning agent.

O,O'-Diacetyl-N-allyl-N-normorphine; Diacetylnalorphine

A pharmaceutical compound, not typically used in cosmetic skincare.

Oak Moss Extract

A fragrance ingredient that can cause skin sensitization and allergic reactions.

Oak Root Extract

A plant extract with potential antioxidant and anti-inflammatory properties.

OAK ROOT EXTRACT

Extract from oak root, may contain tannins with astringent properties.

OAK VINEGAR

Vinegar derived from oak, may contain antioxidants but can be too acidic for skincare.

Oat (Avena Sativa) Kernel Extract

Soothes and moisturizes skin, with anti-inflammatory and antioxidant properties.

Oat Amino Acids

Components of proteins that help hydrate and condition the skin.

OAT AMINO ACIDS

Amino acids derived from oats, known for their moisturizing and skin-conditioning properties.

Oat Amino Protein

Proteins derived from oats that help moisturize and condition the skin.

Oat Beta-Glucan

A polysaccharide from oats that hydrates, soothes, and supports skin barrier function.

Oat Extract

Soothes and moisturizes skin, with anti-inflammatory and antioxidant properties.

Oat Flour

Used for its soothing and absorbent properties, can help calm irritated skin.

Oat Kernel (Avena Sativa) Extract

Soothes and moisturizes skin, with anti-inflammatory and antioxidant properties.

Oat Kernel Extract

Soothes and moisturizes skin, with anti-inflammatory and antioxidant properties.

Oat Milk

A soothing and moisturizing ingredient derived from oats.

OATAMIDOPROPYL BETAINE

A mild surfactant derived from oats, used for cleansing and conditioning.

Oatamidopropyl Dimethylamine

A surfactant derived from oats, used for cleansing and conditioning.

Oatmeal Colloidal

Finely ground oats that soothe and protect irritated or dry skin.

Oatmeal Extract

Soothes and moisturizes skin, with anti-inflammatory and antioxidant properties.

Oatmilk

A soothing and moisturizing ingredient derived from oats.

OBio-Sesam geröstet"

Roasted sesame oil, an emollient rich in fatty acids and antioxidants.

Oblaten (Kartoffelstärke

Potato starch used as a binder or thickener in cosmetic formulations.

OBLONGICHYTRIUM SP. PB-55 POLYSACCHARIDES

Polysaccharides from a specific microorganism, likely used for hydration or film-forming.

Oceagen Collagen

A form of collagen, likely marine-derived, used for its moisturizing and skin-plumping properties.

Ocimene

A naturally occurring terpene found in plants, often used for its fragrance.

OCIMENYL ACETATE

A synthetic fragrance ingredient.

Ocimium Sanctum Leaf Extract

Extract from Holy Basil, known for its antioxidant and anti-inflammatory properties.

Ocimum Americanum Leaf Oil

Essential oil from American basil, used for its fragrance and potential antimicrobial properties.

OCIMUM AMERICANUM LEAF OIL

Essential oil from American basil, may have antioxidant and antimicrobial properties but can be sensitizing.

OCIMUM AMERICANUM LEAF/STEM OIL

Essential oil from American basil, may have antioxidant and antimicrobial properties but can be sensitizing.

Ocimum Basilicum (Basil Flower) Extract°°

Extract from basil flowers, known for antioxidant and potential anti-inflammatory properties.

Ocimum Basilicum (Basil)

Refers to basil plant or extract, known for antioxidant and potential anti-inflammatory properties.

Ocimum Basilicum (Basil) Extract

Extract from basil, known for antioxidant and potential anti-inflammatory properties.

Ocimum Basilicum (basil) Flower/leaf Extract

Extract from basil flowers and leaves, known for antioxidant and potential anti-inflammatory properties.

Ocimum Basilicum (Basil) Flower/Leaf Extract

Extract from basil flowers and leaves, known for antioxidant and potential anti-inflammatory properties.

Ocimum Basilicum (Basil) Flower/Leaf Extract

Extract from basil flowers and leaves, known for antioxidant and potential anti-inflammatory properties.

Ocimum Basilicum (Basil) Leaf Extract

Extract from basil leaves, known for antioxidant and potential anti-inflammatory properties.

Ocimum Basilicum (Basil) Oil

Essential oil from basil, used for its fragrance and potential antimicrobial properties.

Ocimum Basilicum (Basil) Oil.

Essential oil from basil, used for its fragrance and potential antimicrobial properties.

Ocimum Basilicum (Basil) Oil*

Essential oil from basil, used for its fragrance and potential antimicrobial properties.

Ocimum Basilicum (Basil) Seed

Seeds from the basil plant, may be used for their texture or potential beneficial compounds.

Ocimum Basilicum (Basil) Seed Extract

Extract from basil seeds, potentially containing beneficial compounds for skin.

Ocimum Basilicum (Bass) Flower/Leaf Extract

Extract from basil flowers and leaves, known for antioxidant and potential anti-inflammatory properties.

Ocimum Basilicum (Sweet Basil) Oil

Essential oil from sweet basil, used for its fragrance and potential antimicrobial properties.

OCIMUM BASILICUM EXTRACT

Basil extract, known for antioxidant and potential anti-inflammatory properties.

Ocimum Basilicum Flower/Leaf Extract

Extract from basil flowers and leaves, known for antioxidant and potential anti-inflammatory properties.

OCIMUM BASILICUM FLOWER/LEAF EXTRACT

Basil extract, known for antioxidant and potential anti-inflammatory properties.

OCIMUM BASILICUM FLOWER/LEAF/STEM EXTRACT

Basil extract, known for antioxidant and potential anti-inflammatory properties.

OCIMUM BASILICUM FLOWER/LEAF/STEM WATER

Water infused with basil, offering potential antioxidant and soothing benefits.

Ocimum Basilicum Hairy Root Culture Extract

An extract from basil hairy roots, potentially rich in beneficial compounds.

OCIMUM BASILICUM HAIRY ROOT CULTURE EXTRACT

Extract from basil hairy roots, may contain beneficial compounds for skin.

Ocimum Basilicum Hairy Root Extract

An extract from basil hairy roots, potentially rich in beneficial compounds.

OCIMUM BASILICUM HERB EXTRACT

Basil extract, known for antioxidant and potential anti-inflammatory properties.

OCIMUM BASILICUM LEAF

Basil leaf, contains antioxidants and potential anti-inflammatory compounds.

OCIMUM BASILICUM LEAF EXTRACT

Basil extract, known for antioxidant and potential anti-inflammatory properties.

OCIMUM BASILICUM LEAF POWDER

Powdered basil leaf, used for its antioxidant and potential anti-inflammatory properties.

OCIMUM BASILICUM LEAF WATER

Water infused with basil leaf, offering potential antioxidant and soothing benefits.

Ocimum Basilicum Leafe Extract

Extract from basil leaves, known for antioxidant and potential anti-inflammatory properties.

OCIMUM BASILICUM MERISTEM CELL CULTURE EXTRACT

Extract from basil meristem cells, may offer potent antioxidant and regenerative benefits.

Ocimum Basilicum Oil (Basil)

Essential oil from basil, used for its fragrance and potential antimicrobial properties.

OCIMUM BASILICUM ROOT EXTRACT

Extract from basil roots, may contain beneficial compounds for skin.

OCIMUM BASILICUM SEED EXTRACT

Extract from basil seeds, may offer conditioning and antioxidant properties.

Ocimum Basillicum (Basil) Oil

Essential oil from basil, used for its fragrance and potential antimicrobial properties.

OCIMUM CANUM HERB EXTRACT

Extract from a type of basil, may have antioxidant and anti-inflammatory properties.

OCIMUM GRATISSIMUM HERB EXTRACT

Extract from African basil, known for potential antimicrobial and antioxidant properties.

Ocimum Sanctum (Basil Leaf)°°

Extract from Holy Basil leaves, known for antioxidant and potential anti-inflammatory properties.

Ocimum Sanctum (Basil) Leaf Extract

Extract from Holy Basil leaves, known for antioxidant and potential anti-inflammatory properties.

Ocimum Sanctum (Holy Basil) Leaf Extract°

Extract from Holy Basil leaves, known for antioxidant and potential anti-inflammatory properties.

Ocimum Sanctum (Tulsi Leaf) Oil

Essential oil from Tulsi (Holy Basil) leaves, used for its fragrance and potential therapeutic properties.

Ocimum Sanctum (Tulsi) Leaf Extract

Extract from Tulsi (Holy Basil) leaves, known for antioxidant and potential anti-inflammatory properties.

Ocimum Sanctum Leaf Extract

Extract from Holy Basil, known for its antioxidant and anti-inflammatory properties.

OCIMUM SANCTUM LEAF EXTRACT

Extract from Holy Basil (Tulsi), known for its antioxidant, anti-inflammatory, and adaptogenic properties.

Ocimum Sanctum Leaf Extract. Titanium Dioxide (CI 77891)

A combination of Holy Basil extract (antioxidant, anti-inflammatory) and Titanium Dioxide (UV filter, pigment).

Ocimum Sanctum Leaf Extract*

Extract from Holy Basil, known for its antioxidant and anti-inflammatory properties.

Ocimum Sanctum Leaf Oil

Essential oil from Holy Basil, used for its fragrance and potential therapeutic properties.

Ocimum Sanctum Leaf Powder

Powdered Holy Basil leaves, used for potential antioxidant and anti-inflammatory benefits.

OCIMUM SANCTUM LEAF POWDER

Powdered Holy Basil (Tulsi) leaf, used for its antioxidant and anti-inflammatory benefits.

Ocimum Seloi Oil (Hydrolate Or Floral Waters)

Aromatic water or floral extract from Ocimum Seloi, likely with soothing and fragrant properties.

Ocimum Tenuiflorum Extract

Extract from Holy Basil (Ocimum Tenuiflorum), known for its antioxidant and anti-inflammatory properties.

OCIMUM TENUIFLORUM EXTRACT

Extract from Holy Basil (Tulsi), known for its antioxidant, anti-inflammatory, and adaptogenic properties.

OCIMUM TENUIFLORUM FLOWER EXTRACT

Extract from Holy Basil (Tulsi) flowers, may offer antioxidant and anti-inflammatory benefits.

OCOTEA QUIXOS LEAF OIL

Essential oil from the Amazonian tree, may have aromatic and potential therapeutic properties.

OCTACARBOXYMETHYL DIPEPTIDE-12 LYSINAMIDE

A synthetic peptide with potential skin-conditioning and anti-aging properties.

Octacosanyl Glycol

An emollient and skin-conditioning agent that helps to soften and smooth the skin.

OCTACOSANYL GLYCOL

A long-chain fatty alcohol, used as an emollient and thickener.

Octacosanyl Glycol Isostearate

An emollient and skin-conditioning agent that helps to soften and smooth the skin.

OCTACOSANYL GLYCOL ISOSTEARATE

An ester of a long-chain fatty alcohol, used as an emollient and skin-conditioning agent.

Octacosatrimonium Chloride

A conditioning agent and emulsifier, often used in hair care for its smoothing properties.

OCTACOSATRIMONIUM CHLORIDE

A quaternary ammonium compound, often used as a conditioning agent in hair care.

Octadecane

A long-chain alkane used as an emollient and solvent in skincare.

Octadecanoic Fatty Acid

A fatty acid (stearic acid) used as an emollient, emulsifier, and thickener.

Octadecene

A long-chain alkene used as an emollient and solvent in skincare.

Octadecenedioic Acid

A dicarboxylic acid that may have skin-brightening and antioxidant properties.

OCTADECENEDIOIC ACID

A dicarboxylic acid, may have skin-brightening and exfoliating properties.

Octadecyl D-Glucoside

A surfactant that helps to cleanse the skin and create lather.

Octadecyl Di-T-Butyl-4-Hydroxyhydrocinnamale

An antioxidant that protects the skin from free radical damage.

Octadecyl Di-t-butyl-4-hydroxyhydrocinnamate

An antioxidant that protects the skin from free radical damage.

Octadecyl Di-T-Butyl-4-Hydroxyhydrocinnamate

An antioxidant that protects the skin from free radical damage.

OCTAFLUOROPENTYL METHACRYLATE

A fluorinated monomer, likely used to impart water and oil repellency.

OCTAHYDRO-2,5,5-TRIMETHYL-2-NAPHTHOL

A synthetic fragrance ingredient with woody notes.

OCTAHYDRO-3,8-DIMETHYLAZULEN-5-YLPROPAN-2-OL

A synthetic fragrance ingredient with woody and floral notes.

OCTAHYDRO-5,5-DIMETHYLNAPHTHALENE-2-CARBALDEHYDE

A synthetic fragrance ingredient with woody and amber notes.

OCTAHYDRO-8,8-DIMETHYL-2-NAPHTHALDEHYDE

A synthetic fragrance ingredient with woody and amber notes.

OCTAHYDRO-8,8-DIMETHYLNAPHTHALENE-2-CARBONITRILE

A synthetic fragrance ingredient with woody and musky notes.

OCTAHYDRO-DIMETHYL-4ALPHA-NAPHTHOL

A synthetic fragrance ingredient with woody notes.

OCTAHYDRO-DIMETHYL-METHYLVINYL-NAPHTHALENE

A synthetic fragrance ingredient with woody and floral notes.

OCTAHYDRO-HEXAMETHYL-NAPHTHOXIRENE

A synthetic fragrance ingredient with woody and amber notes.

OCTAHYDRO-METHOXY-TETRAMETHYL-METHANOAZULENE

A synthetic fragrance ingredient with woody and amber notes.

OCTAHYDRO-METHYL-METHANONAPHTHALENONE

A synthetic fragrance ingredient with woody and amber notes.

OCTAHYDRO-PENTAMETHYL-INDENE

A synthetic fragrance ingredient with woody and amber notes.

OCTAHYDRO-TETRAMETHYL-1-NAPHTHALENOL

A synthetic fragrance ingredient with woody notes.

OCTAHYDRO-TETRAMETHYL-METHANO-1-NAPHTHOL

A synthetic fragrance ingredient with woody notes.

OCTAHYDRO-TETRAMETHYL-METHANOAZULENE

A synthetic fragrance ingredient with woody and amber notes.

OCTAHYDRO-TETRAMETHYL-METHANOAZULENONE

A synthetic fragrance ingredient with woody and amber notes.

OCTAHYDRO-TETRAMETHYLCYCLOPROPANAPHTHALENONE

A synthetic fragrance ingredient used to impart scent.

OCTAHYDRO-TETRAMETHYLCYCLOPROPAZULENE

A synthetic fragrance ingredient used to impart scent.

OCTAHYDRO-TRIMETHYL-ETHANO-NAPHTHOXIRENE

A synthetic fragrance ingredient used to impart scent.

OCTAHYDRO-TRIMETHYL-NAPHTHOXIREN-7-OL

A synthetic fragrance ingredient used to impart scent.

OCTAHYDRO-TRIMETHYLSPIRO-METHANOAZULENE-6,2'-OXIRANE

A synthetic fragrance ingredient used to impart scent.

OCTAHYDRODIMETHYL-2,5-METHANO-INDENOOXIRENE

A synthetic fragrance ingredient used to impart scent.

OCTAHYDROSPIRO-DIOXOLANEMETHANOINDENE

A synthetic fragrance ingredient used to impart scent.

Octamethylcyclotetrasiloxane

A silicone that provides a smooth feel and can help with product spreadability.

Octanal

A fragrance ingredient that adds a citrusy scent.

OCTANAL DIMETHYL ACETAL

A fragrance ingredient that provides a citrusy scent.

OCTANAL ETHYLENEGLYCOL CYCLIC ACETAL

A fragrance ingredient that provides a citrusy scent.

Octane

A solvent used to dissolve other ingredients in a formulation.

Octanediol

A humectant that attracts and retains moisture in the skin.

octanodecanoglycerol

A chemical sunscreen filter that absorbs UVB rays.

Octanohydroxamic Acid

A chelating agent that can also act as a preservative booster.

Octapeptide-10

A peptide that may help to improve skin firmness and elasticity.

Octapeptide-15

A peptide that may help to improve skin firmness and elasticity.

Octapeptide-2

A peptide that may help to improve skin firmness and elasticity.

OCTAPEPTIDE-29 TRIFLUOROACETATE

A synthetic peptide that may help improve skin's appearance.

Octapeptide-35

A peptide that may help to improve skin firmness and elasticity.

Octapeptide-7

A peptide that may help to improve skin firmness and elasticity.

Octapeptide-8

A peptide that may help to improve skin firmness and elasticity.

OCTATRIENOIC ACID

A fatty acid that can act as an emollient and skin conditioner.

Octenidine Hcl

An antimicrobial agent used for its antiseptic properties.

Octenidine HCl

An antimicrobial agent used for its antiseptic properties.

Octenidine HCL.

An antimicrobial agent used for its antiseptic properties.

OCTENYLSUCCINATE

Often used as an emulsifier or thickener in cosmetic formulations.

Octinoxate