May 2023 in “Journal of Investigative Dermatology” Blocking DPP4 can potentially speed up hair growth and regeneration, especially after injury or in cases of hair loss.
August 2025 in “Current Issues in Molecular Biology” Periplaneta americana extract helps hair regrowth in mice with alopecia.
2 citations
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December 1994 in “International Journal of Cosmetic Science” Polymer complexation makes hyaluronic acid stick to hair better, enhancing its moisturizing effects.
December 2022 in “Biochemical and Biophysical Research Communications” HtrA2 activity is crucial for normal hair growth by regulating fat cell development.
3 citations
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March 2020 in “Dermatology Research and Practice” Tracnil™, a mix of myo-inositol, folic acid, and vitamin D3, safely reduced acne, improved excessive hair growth, and fixed irregular periods in overweight women with PCOS.
21 citations
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April 2018 in “Journal of Dermatological Science” Cilostazol helps hair grow by making hair root cells grow faster and changing growth factor levels.
January 2004 in “Linchuang pifuke zazhi” All-trans retinoic acid helps amelanotic melanocytes in hair follicles develop and produce pigment while reducing their growth.
April 2024 in “Journal of microbiology and biotechnology” 44 citations
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January 1984 in “Molecular and Cellular Biochemistry” CRH causes hair loss by reducing cell survival in hair follicles.