Just like our bodies, our hair has a ph ratio which places it in an optimum position to be at its best. That range is 4.5 to 5.5 and it is acidic according to the standard ph scale. The ph of tap water is 6.0 and is considered neutral. Anything higher is considered alkaline. Using products whose acidic range is the same as our hair allows its natural properties to be maximized.
That’s why lemon and beer rinses were popular at one time. Their acidic nature rendered our hair acidic, helped close the cuticle (outer) layer and made our hair shinier. Of course today, with all the technology there are ingredients built right into some shampoos and or conditioners that may do that automatically. I say ‘some’ because some manufacturers are still making alkaline shampoos and conditioners that may be cost-efficient but unfortunately can take away that beautiful shine that we all look for.
When we venture too far out of that range, higher or lower, we place our hair in a more vulnerable state which could be weakness, breakage, dryness and lack of shine. Your stylist should be able to help you determine what you need to correct these conditions and get your hair back to looking its best.