Refatting Rate of Human Hair Lipids After Exposure to Selenium Disulfide Detergents
February 1983
in “
International Journal of Cosmetic Science
”
TLDR Selenium disulphide detergents increase hair oiliness by boosting some lipids and reducing fatty acids.
The study examined the effects of two selenium disulphide-containing detergents on the refatting rate of human hair. Both detergents, one with a hard base and the other with a soft base, led to a significant increase in triglyceride levels (∼160%), wax esters (∼30%), and squalene (∼20%), while fatty acids decreased by ∼20%. Cholesterol and polar lipid levels remained unchanged. These results suggested an increase in sebum production and a decrease in lipolytic activity in the scalp. No significant differences were observed between the effects of the two detergents.