U.S. doctors online nowAsk doctors free
Shreveport, LA
A 24-year-old female asked:

Is it bad to use dry shampoo if you never want to wash your hair?

1 doctor answer2 doctors weighed in
Dr. Milton Alvis, jr
Preventive Medicine 42 years experience
Water IsEssential to: clean. Shampoo, like other soaps/detergents, does not clean. They are emulsification agents which can coat groups of fat molecules at a submicroscopic scale, so that fat molecules (water rejects) will now mix (via the charged surrounding soap molecules) with water & wash away. This is also why physical agitation is essential; it breaks up fat, & other molecules, so the soap molecules can cover.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Mar 13, 2015


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.