Do most shampoos damage hair? Spotting bad studies

Transcript

One of the biggest problems with beauty science  and science in general: peer-reviewed papers are not the best source of useful science you  can apply to your life and it's leading to a lot of really bad advice. And low pH shampoo  is one example that we can learn a lot from. Do you need to look for a low pH shampoo? No.  But all these magazines an... Read More