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Why is Ammonia {NH3} is added in some hair colour dyes ?

Why is Ammonia {NH3} is added in some hair colour dyes ?
 

Grade:11

1 Answers

Umakant biswal
5349 Points
7 years ago
@ mardana 
the main purpose of ammonia to be added in hair colour is that it will help open the cuticle layer of hair and allow the colour molecules to penetrate the hair , 
it also act as  a peroxide activator in the colour which is almost required . 
ammonia is alkaline , therefore it will cause the hair to swell , and open the cuticle . 
HOPE IT CLEARS 
ALL THE BEST ..

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