Refatting Rate of Human Hair Lipids After Exposure to Selenium Disulfide Detergents

    February 1983 in “ International Journal of Cosmetic Science ”
    Alf Björnberg, Lars Hellgren, Bengt Norén, J. Vincent
    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.
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