pH pH stands for Power of Hydrogen or Particles of Hydrogen. In Salon Chemical and Conditioning Services it is important to understand how the pH level of a product affects the hair . pH ranges from 0 - 14. Healthy Hair has a pH of between 4.5 and 5.5 Distilled water has a pH of 7 pH numbers below 7 are acidic pH numbers above 7 are alkaline (base) Most hair conditioning products are acidic because acid closes the cuticle of the hair Most hair color, perm and relaxers are alkaline because to do their work they must enter the cuticle and the cortex of the hair The goal with any alkaline salon service is to assure that the hair is always returned to an acidic state after the service is finished. Refer to "Cool Seasonal Palettes" in "The ATLAS" for pH charts for hair and salon chemicals |