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Hydroxyethyl cellulose, Niacinamide and NAG Serum Test – What the HEC?
Hey curlyteas! For the past few days I’ve been testing hydroxyethyl cellulose aka “hydroxyethylcellulose” (HEC). […]
product formulation & consultation, ingredient testing, how-to videos and other info that empowers you to create your own hair care and skincare products!