Which statement best describes a 'no-lye' relaxer compared to a 'lye' relaxer?
a.No-lye relaxers are stronger than lye relaxers
b.No-lye relaxers use guanidine hydroxide and tend to be gentler on the scalp but can leave hair drier
c.No-lye relaxers contain sodium hydroxide and process faster
d.No-lye relaxers are neutral in pH and require no neutralizer
Explanation
No-lye relaxers most commonly use guanidine hydroxide (mixed on site from calcium hydroxide and guanidine carbonate). They are generally less irritating to the scalp but can leave more mineral deposits, making hair feel drier.
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