The Effectiveness of Medicated Hair Tonic Containing Royal Jelly Extract

    March 2024 in “ Journal of Society of Cosmetic Chemists of Japan ”
    Ryo Takahashi, Ryo Tsubokawa, Chizuru Fujikura … Yoshikazu Yonei
    Studysummary In this study, a medicated hair growth tonic containing RJ extract increased hair counts, the proportion of anagen phase hairs, and scalp moisture in human trials, although the specific role of RJ in hair growth remains unclear due to other active ingredients.
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    Research cited in this study 11

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    11. Vascular Endothelial Growth Factor Is an Autocrine Growth Factor for Hair Dermal Papilla Cells Journal of Investigative Dermatology · 1996