Hydration, Solvent, Miscellaneous

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METHYLPROPANEDIOL

According to the Personal Care Product CouncilŠ—Ès Ingredient Infobase online, methylpropanediol is a synthetic ingredient that functions as solvent. In a cosmetic formula, it can enhance the absorption of ingredients such as salicylic acid. It also has pronounced hydrating properties that can leave a smooth, dewy finish on skin.