Final answer:
Hydrogen peroxide combined with ammonia is used to lighten hair color. This combination is effective due to the chemical reaction that breaks down natural hair pigments.
Step-by-step explanation:
The combination of hydrogen peroxide and ammonia will allow for the lift and lightening of the hair's natural color. Hydrogen peroxide is a common household disinfectant that is known for its properties of breaking down into water and oxygen gas.
When diluted, typically between 1.9% and 12%, and mixed with aqueous ammonia, hydrogen peroxide is used to bleach human hair, leading some to the term "peroxide blonde.
" This chemical reaction causes the hair to lighten by breaking down the natural pigments within the hair shaft.