A member asked:

Is it true what people say about shampoos that is hair develop immunity against them overtime? so that we should change shampoo often.

A doctor has provided 1 answer
Dr. Steven Harris answered

Specializes in Plastic Surgery

Hair is dead: Hair is composed only of dead tissue. It can't "know" what you put on it a few days ago. It can only respond to what you have on it now. This is like saying that your nails become "immune" to your nail polish and so you have to change polish brand frequently. Use s shampoo that makes your hair feel/smell like you want it to feel/smell and don't be fooled by all the ads.

Answered 3/29/2015

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