Hair ServicesQuestion 357 of 484
Which chemical relaxer is classified as a no-lye relaxer and is commonly marketed for at-home or sensitive-scalp use?
a.Sodium hydroxide
b.Lithium hydroxide
c.Potassium hydroxide
d.Guanidine hydroxide
Explanation
Guanidine hydroxide is a no-lye relaxer formed by mixing calcium hydroxide with a guanidine carbonate activator. It is gentler on the scalp than sodium hydroxide (lye) relaxers but can leave hair drier. Sodium, lithium, and potassium hydroxide are lye relaxers.
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