Preservatives Which Can Itch
Preservatives are a common source of skin irritation or allergic reaction in cosmetics and hair products. This is a short list of common offenders to suspect if a product causes problems for you: Benzyl alcohol Imidazolidinyl urea Diazolidinyl urea Sodium Hydroxylmethylglycinate Methyl, Propyl, Butyl, and Ethyl Parabens Phenoxyethanol DMDM hydantoin Quaternium-15 Methylisothiazolinone ©Science-y Hair Blog 2013 Those in italics are formaldehyde releasers. Formaldehyde is an excellent preservative, but can be commonly irritating to skin and is dangerous to breathe (carcinogenic). ©Science-y Hair Blog 2013