6 citations,
March 2003 in “PubMed” Small amounts of DNA can be found in the hair shaft, especially near the root, but it decreases with hair treatments and washing.
3 citations,
September 2020 in “Journal of cosmetic dermatology” Coconut oil makes hair stronger and more flexible than mineral oil.
1 citations,
November 2023 in “Cosmetics” Surfactants damage hair, but sealing the cuticle can prevent this.
2 citations,
July 2023 in “Cosmetics” Surfactants in shampoos and conditioners remove some but not all lipids from hair, and more research is needed to understand their full impact.
17 citations,
July 2019 in “Scientific reports” Surface and internal treatments can help prevent hair lipid loss during washing.