✦ Ingredient Glossary

Ingredients starting with M

1,889 ingredients with safety ratings, purposes, and interaction warnings. Page 6 of 10.

METHIONYL SH-POLYPEPTIDE-10

A synthetic peptide that may help improve skin firmness and reduce the appearance of wrinkles.

METHIONYL SH-POLYPEPTIDE-101

A synthetic peptide that may help improve skin firmness and reduce the appearance of wrinkles.

METHIONYL SH-POLYPEPTIDE-11

A synthetic peptide that may help improve skin firmness and reduce the appearance of wrinkles.

Methionyl sh-Polypeptide-7 Alanyl sr-Spider Oligopeptide-1

A peptide complex designed to support skin structure and elasticity.

METHIONYL SH-POLYPEPTIDE-9

A synthetic peptide that may help improve skin firmness and reduce the appearance of wrinkles.

Methionyl sh-Polypeptide-92

A peptide that may help to improve skin firmness and reduce the appearance of wrinkles.

METHIONYL SH-POLYPEPTIDE-92

A synthetic peptide that may help improve skin firmness and reduce the appearance of wrinkles.

Methionyl sh-Polypeptide-93

A peptide that may help to improve skin firmness and reduce the appearance of wrinkles.

METHIONYL SH-POLYPEPTIDE-93

A synthetic peptide that may help improve skin firmness and reduce the appearance of wrinkles.

METHIONYL SH-POLYPEPTIDE-96

A synthetic peptide that may help improve skin firmness and reduce the appearance of wrinkles.

Methly Gluceth-10

A humectant derived from glucose that attracts and retains moisture in the skin.

METHOTREXOYL OLIGOPEPTIDE-59

This appears to be a highly specialized or experimental peptide; its specific function in skincare is not widely established.

Methoxy Amodimethicone/Silsesquioxane Copolymer

A silicone copolymer that provides conditioning, smoothing, and a protective barrier on the skin.

Methoxy Amodimethicone/​Silsesquioxane Copolymer

A silicone copolymer that provides conditioning, smoothing, and a protective barrier on the skin.

Methoxy PEG-113 Ascorbic Acid

A derivative of Vitamin C (ascorbic acid) that may offer antioxidant benefits and skin brightening.

Methoxy PEG-18

A polyethylene glycol derivative used as a solvent or emollient.

Methoxy PEG-22-Dodecyl Glycol Copolymer

An emulsifier and conditioning agent that helps blend oil and water and softens skin.

Methoxy PEG-22/​Dodecyl Glycol Copolymer

An emulsifier and conditioning agent that helps blend oil and water and softens skin.

Methoxy PEG-7 Dehydrocholesteryl Succinate

A derivative of cholesterol used for its emollient and skin-conditioning properties.

Methoxy PEG/​PPG- 25/​4 Dimethicone

A silicone derivative that acts as an emollient and emulsifier, providing a smooth feel.

Methoxy Peg/​Ppg-25/​4 Dimethicone

A silicone derivative that acts as an emollient and emulsifier, providing a smooth feel.

Methoxy PEG/​PPG-25/​4 Dimethicone

A silicone derivative that acts as an emollient and emulsifier, providing a smooth feel.

Methoxy Peg/Ppg-7/3 Aminopropyl Dimethicone

A silicone-based conditioning agent that smooths and softens the skin.

Methoxy PEG/PPG-7/3 Aminopropyl Dimethicone

A silicone-based conditioning agent that smooths and softens the skin.

Methoxy PEG/​PPG-7/​3 Aminopropyl Dimethicone

A silicone-based conditioning agent that smooths and softens the skin.

METHOXY-TETRAHYDRO-METHYLENEPYRANYL-PHENOL

This is a complex chemical name, likely a synthetic ingredient with antioxidant or stabilizing properties.

Methoxycinnamate

A UV absorber used in sunscreens to protect skin from UVB radiation.

Methoxycinnamidopropyl Hydroxysultaine

A surfactant and conditioning agent that can help cleanse and soften skin.

METHOXYCINNAMIDOPROPYL HYDROXYSULTAINE

A surfactant that can also offer UV protection properties.

Methoxycrylene

A broad-spectrum UV filter that helps protect skin from UVA and UVB rays.

Methoxydibenzoylmethane

A broad-spectrum UV filter (also known as Avobenzone) that absorbs UVA rays.

Methoxyethyl Acrylate

A monomer used in the production of polymers for various cosmetic applications.

Methoxymethylbutanol

A solvent used in cosmetic formulations.

Methoxyphenyl t-Butylphenyl Propanediol

A UV filter that provides broad-spectrum protection against UVA and UVB rays.

Methoxyphenyl Triazine

A broad-spectrum UV filter that protects skin from UVA and UVB radiation.

Methoxypropylgluconamide

A conditioning agent that can help improve skin hydration and texture.

Methoxytrimethylheptanol

A fragrance ingredient that provides a floral scent.

Methy| Styrene

This appears to be a typo or an unusual ingredient name, likely related to polymers or fragrance.

Methyl

This is too general to determine a specific purpose or rating.

Methyl 2-Octynoate

A fragrance ingredient with a floral, violet-like scent.

Methyl 2-Octynoate (F.I.L. N70048180/3).

A fragrance ingredient with a floral, violet-like scent.

Methyl Acetate

A solvent with a fruity odor, used in some cosmetic formulations.

Methyl Acetate.

A solvent with a fruity odor, used in some cosmetic formulations.

Methyl Alcohol

A volatile solvent that can be drying and irritating to the skin.

Methyl Anthranilate

A fragrance ingredient with a grape-like scent, also used as a UV absorber.

Methyl Anthranilate*

A fragrance ingredient with a grape-like scent, also used as a UV absorber.

Methyl Benzoate

A fragrance ingredient with a fruity scent, also used as a solvent.

METHYL BENZOATE.

A fragrance ingredient with a fruity scent, can be a potential irritant.

Methyl Benzoate*.

A fragrance ingredient with a fruity scent, also used as a solvent.

Methyl Benzophenone

A UV filter used to protect cosmetic products from UV degradation.

METHYL BETA-NAPHTHYL ETHER

A fragrance ingredient with a floral scent, can be a potential irritant.

Methyl Canolate

A fatty acid ester derived from canola oil, used as an emollient.

Methyl Caprooyl Tyrosinate

A derivative of the amino acid tyrosine, potentially used for skin brightening.

Methyl Carboxymethylphenyl Aminocarboxypropylphosphonate

A complex ingredient, likely a peptide or derivative, with potential skin conditioning benefits.

Methyl Cedryl Ketone

A synthetic fragrance ingredient with a woody, amber scent.

Methyl Cocoate

A fatty acid ester derived from coconut oil, used as an emollient or surfactant.

Methyl cross polymer

Film-forming agent that creates a smooth layer on the skin.

Methyl Cyclodextrin

A cyclic oligosaccharide used to encapsulate and stabilize other ingredients.

Methyl Decenol

A synthetic fragrance ingredient with a floral, citrusy scent.

Methyl Dihydroabietate

A derivative of rosin, used as an emollient and solvent.

Methyl Dihydroxybenzoate

Antioxidant that helps protect skin from free radical damage.

Methyl Diisopropyl Propionamide

Skin conditioning agent.

METHYL DIISOPROPYL PROPIONAMIDE

A synthetic cooling agent that provides a long-lasting cooling sensation.

Methyl Ester

Can function as an emollient or surfactant depending on the specific ester.

Methyl Eugenol

Fragrance ingredient with potential for skin sensitization.

Methyl gluceth-10

Humectant that draws moisture into the skin.

Methyl Gluceth-10

Humectant that draws moisture into the skin.

Methyl Gluceth-20

Humectant that draws moisture into the skin.

METHYL GLUCETH-20

A humectant derived from glucose that attracts and retains moisture.

Methyl Gluceth-20 (Emollient)

Emollient that softens and smooths the skin.

Methyl Glucose Caprate/Caprylate/Oleate

Emulsifier that helps blend oil and water ingredients.

Methyl Glucose Caprate/​Caprylate/​Oleate

Emulsifier that helps blend oil and water ingredients.

Methyl Glucose Caprate/Caprylate/Oleate*

Emulsifier that helps blend oil and water ingredients.

Methyl Glucose Dioleate

Emulsifier that helps blend oil and water ingredients.

Methyl Glucose Sesquistearate

Emulsifier that helps blend oil and water ingredients.

Methyl Glucoside Sesquistearate

Emulsifier that helps blend oil and water ingredients.

METHYL HESPERIDIN

A flavonoid derived from citrus fruits, known for its antioxidant properties.

Methyl Hydrogenated Rosinate

Emollient that softens and smooths the skin.

METHYL HYDROGENATED ROSINATE

Acts as a film former and emollient in cosmetic formulations.

Methyl Hydroxybenzoate

Preservative that prevents microbial growth.

Methyl Hydroxyethylcellulose

Thickener that increases the viscosity of formulations.

Methyl Ionone

Fragrance ingredient that provides a floral scent.

Methyl Ionone.

Fragrance ingredient that provides a floral scent.

Methyl Ionones

Fragrance ingredient that provides a floral scent.

Methyl isocyanate

Highly reactive and toxic chemical, not used in skincare.

Methyl Lactate

Can act as a solvent or skin conditioning agent.

METHYL LAURATE

Used as a surfactant or emollient in skincare products.

Methyl Methacrylate Cross-Polymer

Film-forming agent that creates a smooth layer on the skin.

Methyl Methacrylate Crosspolymer

Film-forming agent that creates a smooth layer on the skin.

METHYL METHACRYLATE CROSSPOLYMER

Functions as a film-forming agent and thickener in cosmetics.

Methyl Methacrylate/Glycol Dimethacrylate Crosspolymer

Film-forming agent that creates a smooth layer on the skin.

Methyl Methacrylate/​Glycol Dimethacrylate Crosspolymer

Film-forming agent that creates a smooth layer on the skin.

METHYL MORPHOLINE OXIDE

Used as a surfactant or emulsifier in cleaning products and cosmetics.

Methyl Nicotinate

Causes temporary skin flushing and warming, used for circulation.

Methyl Octine Carbonate

Fragrance ingredient.

Methyl Palmitate

Emollient that softens and smooths the skin.

methyl paraben

A preservative, part of the paraben family, with some concerns about potential endocrine disruption.

Methyl paraben

Preservative that prevents microbial growth.

Methyl Paraben

Preservative that prevents microbial growth.

Methyl Parahydroxybenzoate

Preservative that prevents microbial growth.

Methyl Parahydroxybenzoate (E 218)

Preservative that prevents microbial growth.

Methyl Parahydroxybenzoate (E-219)

Preservative that prevents microbial growth.

Methyl Perfluorobutyl Ether

Solvent and emollient with unique properties.

Methyl Perfluoroisobutyl Ether

Solvent and emollient with unique properties.

methyl polysiloxane

A silicone derivative used as an emollient and to improve product spreadability.

Methyl Polysorbate 20

Surfactant and emulsifier that helps mix oil and water.

METHYL PROPYL DIKETONE

Primarily used as a flavoring agent, can have solvent properties.

Methyl Pyrrolidone

Solvent that helps dissolve other ingredients.

METHYL PYRROLIDONE

Acts as a solvent and penetration enhancer in cosmetic formulations.

methyl salicylate

A fragrance ingredient with potential anti-inflammatory properties, but can be irritating.

Methyl Salicylate

Fragrance ingredient and potential skin irritant.

Methyl Soyate

Emollient that softens and smooths the skin.

Methyl Stearate

Emollient that softens and smooths the skin.

Methyl Sulfonyl Methane

Skin conditioning agent with potential anti-inflammatory benefits.

Methyl Sulfonyl Methane (Msm)

Skin conditioning agent with potential anti-inflammatory benefits.

Methyl Sulphonyl Methane

Skin conditioning agent with potential anti-inflammatory benefits.

METHYL TETRAHYDROAZEPINYL ETHER

Likely used as a solvent or fragrance ingredient.

Methyl trimethicone

Emollient and solvent that provides a smooth, non-greasy feel.

Methyl Trimethicone

Emollient and solvent that provides a smooth, non-greasy feel.

METHYL TRIMETHICONE

Provides a light, non-greasy feel and acts as a solvent and emollient.

Methyl Undecylenate

Emollient that softens and smooths the skin.

Methyl Undecylenoyl Dipeptide-16

Peptide that may help improve skin elasticity and firmness.

Methyl-2-Octynoate

Fragrance ingredient.

METHYL-OCTAHYDRO-DIMETHYLAZULENYLETHYL ACETATE

Likely used as a fragrance ingredient.

Methylal

Solvent.

Methylaminopropionate

Amino acid derivative used for skin conditioning.

Methylarachidic Acid

Fatty acid used as an emollient.

Methylbenzyl Acetate

Fragrance ingredient.

Methylbenzyl Acetate*

Fragrance ingredient.

Methylbenzyl Alcohol

Fragrance ingredient and solvent.

Methylbenzyl Methylbenzimidazole Piperidinylmethanone

UV filter that protects skin from sun damage.

Methylbutene/Methylstyrene/Piperylene Copolymer

Film-forming agent.

Methylcellulose

Thickener and film-forming agent.

Methylchlo-roisothiazolinone (and) Methylisothiazolinone

Preservative blend with a high potential for causing allergic reactions.

Methylchloridothiazolinone

Preservative with a high potential for causing allergic reactions.

Methylchloriosothiazolinone

Preservative with a high potential for causing allergic reactions.

Methylchloroisothiasolinone

Preservative with a high potential for causing allergic reactions.

Methylchloroisothiazolinone

Preservative with a high potential for causing allergic reactions.

METHYLCHLOROISOTHIAZOLINONE

A preservative used to prevent microbial contamination.

Methylchloroisothiazolinone (26172-55-4)

Preservative with a high potential for causing allergic reactions.

Methyldibromo Methyldibromo Glutaronitrile

Preservative that can release formaldehyde.

Methyldihydrojasmonate

Fragrance ingredient.

Methylene Bie-Benzolriazoly Tetromelhylbuty/phenol (Nono)

UV filter that protects skin from sun damage.

Methylene Bis Benzotriazolyl Tetramethylbutylphenol [Nano]

UV filter that protects skin from sun damage.

Methylene Bis-Benzotriazolyl Tetramethyl

UV filter that protects skin from sun damage.

Methylene Bis-benzotriazolyl Tetramethylbutylphenol

UV filter that protects skin from harmful ultraviolet radiation.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol

UV filter that protects skin from sun damage.

METHYLENE BIS-BENZOTRIAZOLYL TETRAMETHYLBUTYLPHENOL

A broad-spectrum UV filter used in sunscreens to protect skin from UV radiation.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (2.0%)

UV filter that protects skin from sun damage.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (2.00%)

UV filter that protects skin from sun damage.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (2.5%)

UV filter that protects skin from harmful ultraviolet radiation.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (2.50%)

UV filter that protects skin from harmful ultraviolet radiation.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (2%)

UV filter that protects skin from sun damage.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (4%)

UV filter that protects skin from harmful ultraviolet radiation.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (nano)

UV filter that protects skin from harmful ultraviolet radiation.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (Nano)

UV filter that protects skin from harmful ultraviolet radiation.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (Nano]

UV filter that protects skin from harmful ultraviolet radiation.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol [nano]

UV filter that protects skin from harmful ultraviolet radiation.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol [Nano]

UV filter that protects skin from harmful ultraviolet radiation.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol [Nano]

UV filter that protects skin from harmful ultraviolet radiation.

METHYLENE BIS-BENZOTRIAZOLYL TETRAMETHYLBUTYLPHENOL [NANO]

A broad-spectrum UV filter used in sunscreens, in nano form.

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol Nano

UV filter that protects skin from harmful ultraviolet radiation.

Methylene Bis-Benzotriazolyl/​Tetramethylbutylphenol

UV filter that protects skin from harmful ultraviolet radiation.

Methylene Bis-Benzotruazolyl Tetramethylbutylphenol [Nano]

UV filter that protects skin from harmful ultraviolet radiation.

Methylene Di-t-Butylcresol

Antioxidant that protects ingredients from degradation and skin from free radical damage.

Methylene Glycol

Formaldehyde releaser, used as a preservative.

Methylenedioxyphenyl Methylpropanal

Fragrance ingredient.

Methylglucamine

pH adjuster and emulsifying agent.

MethylGluceth 20

Humectant that draws moisture into the skin.

Methylgluceth-20

Humectant that draws moisture into the skin.

Methylglucose Distearate

Emulsifier that helps blend oil and water ingredients.

Methylglucose-20

Humectant that draws moisture into the skin.

Methylglucoside Phosphate

Skin conditioning agent and humectant.

Methylheptyl Ester Of Lauric Acid

Emollient that softens and smooths the skin.

Methylheptyl Isostearate

Emollient that softens and smooths the skin.

methylheptyl laurate

An emollient ester that provides a light, non-greasy feel.

Methylheptyl Laurate

Emollient that softens and smooths the skin.

methylheptylglycerin

A multi-functional ingredient with antimicrobial and emollient properties.

Methylheptylglycerin

Preservative and skin conditioning agent.

Methylhydrogen Polysiloxane

Silicone-based ingredient used for texture and slip.

METHYLHYDROXYPROPYLCELLULOSE

Acts as a thickener and stabilizer in cosmetic formulations.

Methylinositol

Humectant that helps retain moisture in the skin.

Methylisothiasolinone

Preservative that prevents microbial growth.

Methylisothiazolinone

Preservative that prevents microbial growth.

MethylIsothiazolinone

Preservative with a high potential for causing allergic reactions.

METHYLISOTHIAZOLINONE

A preservative used to prevent microbial growth in products.

Methylisothiazolinone (2682-20-4)

Preservative that prevents microbial growth.

METHYLISOTHIAZOLINONE & PHENOXYETHANOL

A preservative combination to prevent microbial contamination.

Methylisothiazolinone.

Preservative that prevents microbial growth.

methylparaben

A preservative used to prevent the growth of microorganisms in cosmetic products.

Methylparaben

Preservative that prevents microbial growth.

MethylParaben

Preservative that prevents microbial growth.

METHYLPARABEN

A preservative used to prevent the growth of bacteria and fungi.

Methylparaben.

Preservative that prevents microbial growth.

Methylparaben. B03136Ammonium Lauryl Sulfate Aqua/Water/Eau

A combination of a preservative and other ingredients.

Methylpropaandiol

Solvent and humectant that helps ingredients penetrate the skin.

Methylpropandiol

Solvent and humectant that helps ingredients penetrate the skin.

methylpropanediol

A solvent and humectant that helps to dissolve other ingredients and draw moisture to the skin.

Methylpropanediol

Solvent and humectant that helps ingredients penetrate the skin.

METHYLPROPANEDIOL

A humectant and solvent that helps improve product texture and hydration.