What are the common preservatives used in skin care products?

Dr. Ellen Marmur, MD

Dermatology

Preservatives are ingredients that kill bacteria to prevent a product from contamination.

The common preservatives used are:

Tocopherol acetate (vitamin E derivative; is also an emollient and
antioxidant).
Propylene and butylene glycols (also humectants)
Disodium and tetrasodium EDTA
Diazolidinyl and imidazolydyl urea
Parabens (Methylparaben, polyparaben, butylparaben, etc.)
Phenoxyethanol
Methylisothiazolinone
Ascorbyl palmitate (a derivative of vitamin C)
Benzoic acid
Benzyl alcohol

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