27 citations
,
December 2005 in “Journal of Cosmetic Dermatology” This study found that topical application of niacin derivatives significantly increased hair fullness in women with female pattern hair loss compared to a placebo after six months.
2 citations
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January 2020 in “International Journal of Cosmetic Science” In this in vitro study, niacinamide was found not to stimulate VEGF synthesis across a wide range of doses.
2 citations
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July 2018 in “Elsevier eBooks” This review discusses commonly used dietary supplements for hair growth and highlights the lack of evidence supporting their efficacy and safety in the absence of nutritional deficiency; it reports no new research results.
11 citations
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October 2015 in “Clinical and Experimental Dermatology” This study found that an extract from the root of Sophora flavescens Aiton significantly improved hair growth in patients with androgenetic alopecia over 6 months.
This research focused on formulating finasteride, dutasteride, and minoxidil with cyclodextrins to enhance their solubility and skin penetration for topical use, potentially reducing scalp irritation from current alcohol-based preparations.