Alpha hydroxy acids (specificallylacticandglycolic acids)
They’re sometimes used in skin products that promise to remove wrinkles and blemishes, but FDA-sponsored studies have found that levels of UV-related skin damage doubled in people following the use of a product with alpha hydroxy acids.
A skin-bleaching chemical, hydroquinone has been linked to a skin disease called ochronosis, which causes blue-black lesions. In animal studies, hydroquinone has also caused tumor development.
Vitamin A compounds for daytime products (retinyl palmitate, retinylacetate, retinoicacid, andretinol)
A skin-conditioning agent used in sunscreens, lotions, and face and lip moisturizers, vitamin A compounds can, if not neutralized by other ingredients, break down in sunlight and produce toxic free radicals that can damage DNA and has-ten skin lesions and tumors, according to animal studies.
Polyethylene glycol (PEG) and Ceteareth compounds
These conditioning and cleaning agents used as surfactants and emulsifiers are often contaminated with 1,4-dioxane, which is considered a probable human carcinogen by the EPA.
(See Avoid These Ingredients When Buying Makeup).
(see Avoid These Ingredients When Buying Makeup).