April 2025 in “Brazilian Journal of Hair Health” This report from Tangle Teezer and TRI Princeton indicates that their Extra Gentle brush reduces hair breakage by up to 39%, offering a therapeutic experience for users with fragile scalps.
48 citations
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February 2013 in “Molecular and Cellular Endocrinology” This review discusses the presence of the StAR protein in 17 non-classical steroidogenic tissues, suggesting that advanced detection methods are needed for a complete understanding of its functions in these tissues.
22 citations
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January 2015 in “Dermatology Research and Practice” This study found that an oral marine protein supplement significantly increased hair growth and reduced hair shedding in women with temporary thinning hair over 90 days compared to a placebo.
This study evaluated various herbal blends of powdered leaves, including Henna and Indigo, for their coloring and sensitivity reactions, finding Henna and Indigo to be effective natural colorants for achieving a reddish-brown hair color with better retention than marketed herbal hair dyes.
January 2007 in “Más dermatología” This review found no clinical studies on hair shaft disorder treatments but reported improvement from minoxidil or oral retinoids in certain conditions, emphasizing gentle hair care and genetic counseling for management.