We know that the hair ph is around 4.5.. Tyoically acidic in nature and hence want out products also to be acidic to avoid dryness and splitends.. And other harm it cab do. Though the ph of soap cannot be made below 7. Using acv we can neutralize it to ph 7 Still alot of ppl using shampoo bars claim to have better hair. Softer. Hair fall reduction and swear not to go to commerical shampos again.. My question is. Thought having a neutral ph. Y does it work on our hair. Wud love to hear the inputs from chemistry point of new.