Did you ever research the substances in shampoo? I did and discovered that most of the substances were irritant. Why

Did you ever research the substances in shampoo?
I did and discovered that most of the substances were irritant. Why do shampoos have such irritant substances, aren’t they supposed to help?

Posted on June 18, 2015 by in Question. Comments Off on Did you ever research the substances in shampoo? I did and discovered that most of the substances were irritant. Why