EWG Safety Score
What Is Behentrimonium Methosulfate?
Behentrimonium methosulfate plays a variety of roles in cosmetic formulations including as an emulsifier and surfactant. It is noted in research as being “skin friendly” because it does not impair intercellular lipids. It is especially popular in hair care formulations geared for curly textures where it serves as a conditioning agent to keep hair static-free, moisturized, and less prone to frizzing.\n\nBehentrimonium methosulfate is also noted for its ability to enhance the delivery of actives to skin.\n\nBehentrimonium methosulfate is categorized as quaternary ammonium salt (water-soluble positively charged ions). As a raw material, it takes the form of pale-yellow pellets. This ingredient is noted for compatible stability over a wide pH range.\n\nIn 2012, the Cosmetic Ingredient Review Expert Panel deemed behentrimonium methosulfate safe as used in personal care products. Their report looked at products containing up to 10% concentration, though typically usage levels are much lower (around 0.5%-2%).
Benefits for Your Skin
Clinical Evidence & References
Published Research
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SpecialChem (supplier info), Accessed November 2022, ePublication SpecialChem (supplier info), 2022
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Cutis, April 2020, pages 183-188 Cutis, 2020
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Journal of Cosmetic Dermatology , January 2018, pages 140-144 Journal of Cosmetic Dermatology, 2018
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Journal of Allergy & Therapy, 2014, pages 1-8 Journal of Allergy & Therapy, 2014
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Therapeutics for the Clinician, January 2008, pages 87-91 Therapeutics for the Clinician, 2008
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International Journal of Toxicology, 2012, pages 296S-341S International Journal of Toxicology, 2012
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