March 1998 in “Journal of dermatological science” Protease Nexin-1 is found in human hair growth cells and is affected by male hormones.
2 citations
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June 2021 in “Cosmoderma” Platelet-rich plasma (PRP) shows promise in skin and hair treatments but results vary with preparation methods.
January 2023 in “Journal of Survey in Fisheries Sciences” The herbal oil significantly improved hair growth and reduced hair loss.
May 2024 in “Archives of Dermatological Research” TAT-GILZ peptide promotes hair growth by boosting stem cell activity.
November 2025 in “Journal of Investigative Dermatology” NUL-5 may boost hair growth by improving hair follicle health and structure.
January 2017 in “Seoul National University Open Repository (Seoul National University)” AIMP1 can boost hair growth by increasing stem cell activity.
January 2026 in “Frontiers in Medicine” PP-PTKL may help treat hair greying, but more testing is needed.
December 2021 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” April 2026 in “Journal of Ethnopharmacology” 9 citations
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July 2020 in “Cell Proliferation” Epiregulin can help hair grow and may be useful for treating hair loss.
Neuropeptides affect hair growth and could be used to control it.
October 2024 in “Cosmetics” ATG effectively reduces hair frizz without damaging hair strength.
1 citations
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September 2023 in “eLife” TLR2 is important for hair growth and can be targeted to treat hair loss.
June 2023 in “British Journal of Dermatology” The protein called small nuclear ribonucleoprotein polypeptide E is identified as a cause of a type of hair loss without other symptoms.
9 citations
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January 1966
December 2024 in “Biomedical & Pharmacology Journal” Hair Tonic A, with white tea extract, is better for improving hair health.
27 citations
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September 1999 in “Journal of Investigative Dermatology” Human skin cells contain Protease Nexin-1, and male hormones can decrease its levels, potentially affecting hair growth.
January 2026 in “Journal of Advanced Research” Bacillus sp. TC5 products help hair regrowth and improve skin drug absorption.
3 citations
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March 2013 in “PubMed” PRP speeds up hair growth and increases hair follicle density in mice.
6 citations
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May 2010 in “Journal of Dermatological Science” Human skin cells can respond to thyroid-stimulating hormone, affecting hair and skin health.
25 citations
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September 2020 in “Molecules” Quercitrin may help treat hair loss by promoting hair growth and improving cell health.
2 citations
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January 2009 A natural extract-based hair growth product was developed and showed promise in preliminary tests.
112 citations
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February 2001 in “Journal of Investigative Dermatology” Neuropeptides affect hair growth, with some speeding it up and others slowing it down.
December 2025 in “eTheses of Maulana Malik Ibrahim State Islamic University (Maulana Malik Ibrahim State Islamic University)” The formula significantly boosts hair growth and density.
August 2006 in “Experimental dermatology” Human scalp hair follicles can produce and respond to several hormones, affecting hair growth and pigmentation.
91 citations
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May 2003 in “American Journal of Pathology” Prolactin affects hair growth cycles and can cause early hair follicle regression.