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July 2016 in “BMC Complementary and Alternative Medicine” Hominis Placenta helps hair grow back by increasing cell growth and a specific growth factor.
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December 2017 in “Wiley Interdisciplinary Reviews-Developmental Biology” Skin cells called dermal fibroblasts are important for skin growth, hair growth, and wound healing.
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October 2024 in “Current Issues in Molecular Biology” Platycladus orientalis leaf extract helps hair grow by activating certain proteins.
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November 2025 in “Journal of Investigative Dermatology” NUL-5 may boost hair growth by improving hair follicle health and structure.
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April 2020 in “Stem Cell Research & Therapy” PI3K/Akt pathway is crucial for hair growth and regeneration.
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July 2013 in “Bioorganic & Medicinal Chemistry Letters” Compounds from Polygonum multiflorum root, especially a new one, can boost hair growth more effectively than common treatments.