How can I tell if a product will cause acne? Episode 155
The Beauty Brains
OCTOBER 17, 2016
According to Fisher’s Contact Dermatitis, acne can result from topical application of cosmetic products via two mechanisms. For example Polyquat 7, which is a great condition agent used in shampoos, can build up on hair if you use to much and it can make the product very stringy and pituitous. Is Nugene Worth the money?
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