C12-15 pareth-12

C12-15 pareth-12 is the International Nomenclature of Cosmetic Ingredients (INCI) name for an emulsifier and surfactant commonly used in cosmetics formulations. It is a polyethylene glycol ether formed by combining synthetic C12–C15 fatty alcohols with 12 moles of ethylene oxide.[1]

C9-11 Pareth-8 is a polyethylene glycol ether of a mixture of synthetic C9—11 fatty alcohols with an average of 8 moles of ethylene oxide.[2]

According to the INCI, "The term Pareth applies to ethoxylated paraffinic alcohols containing both even- and odd-carbon chain length fractions."[3]

References
  1. "EWG Skin Deep". Environmental Working Group. Retrieved July 26, 2020.
  2. "EWG Skin Deep". Environmental Working Group. Retrieved July 26, 2020.
  3. "INCI Nomenclature Conventions" (PDF). [The Personal Care Products Council]]. Retrieved July 26, 2020.


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