Hair Products Can Affect Dermatitis

Benzophenone can also be found in hair care products but a more common ingredient in these products that may cause facial contact dermatitis is cocoamidylpropyl betaine, which is found in baby shampoos and many adult shampoos. "Ingredients in hair care products can cause facial or neck dermatitis, even if they don't cause scalp dermatitis," said Dr. Nedorost. "The face and neck are more sensitive than the scalp and may react where hair products run off of the scalp or are not completely rinsed."