Why are shampoos and conditioners are acidic and alkaline respectively and how does this benefit to hair care?

Also, how do 2-in-1 shampoos work?


Best answer gets 10 points.Why are shampoos and conditioners are acidic and alkaline respectively and how does this benefit to hair care?
Acidic shampoos and conditioners are usually used after chemical treatments which have a very high pH. This brings down the pH levels in order to neutralise the chemical, they are used in particular after the hair has been dyed.


Many clarifying shampoos use alkaline ingredients to swell the hair shaft and allow the surfactants to penetrate more deeply, leaving hair softer and shiny.





2in1 shampoos are 2 ingredients added to a shampoo; silicone and a suspending agent. the silicone (usually dimethicone) is what conditions the hair. The suspending agent is Glycol Distearate and it is what keeps the silicone from separating out of the formula. The way it works is this娄when the bottle of shampoo is sitting on the shelf, the suspending agent is able to hold the silicone in the formula. But when you put the shampoo on your head and mix it with water, the suspending agent does not work so well. The silicone separates out, stays behind on your hair where it can provide conditioning.


Hope this helps :) x