Applying conditioner in the middle of a perm process reduces hair damage.
January 2012 in “한국미용학회지” Applying conditioner in the middle of a perm process reduces hair damage the most.
March 2023 in “Asian journal of beauty & cosmetology” Keratin pretreatment improves the quality of damaged hair during perming.
5 citations
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May 2021 in “International Journal of Cosmetic Science” Healthy scalp leads to better hair quality and less damage.
1 citations
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April 2021 in “Han'gug miyong haghoeji/Journal of the Korean society of cosmetology” Aspartic acid at 0.75% makes perms more effective and less damaging to hair.