11 citations
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March 2005 in “International Journal of Cosmetic Science” Bleached hair loses more protein than virgin hair when brushed, indicating more damage.
February 2024 in “Medicina” AFM can diagnose hair disorders by revealing detailed hair surface changes.
13 citations
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March 2019 in “Journal of cosmetic dermatology” Heat damages hair, with Asian hair losing more protein than Caucasian hair.
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.
April 2024 in “Cosmetics” Different oils affect hair flexibility and strength, with their impact varying on whether hair is virgin or bleached.