January 2016 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” IGF-I helps hair growth by preventing cell death and boosting growth factors.
The inner root sheath in hair follicles plays a key role in hair growth and health.
Houttuynia cordata and Calendula officinalis extracts may promote hair growth without harming cells.
173 citations
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November 2004 in “Seminars in Reproductive Medicine” Adrenarche increases adrenal androgens around age 6, affecting hair growth and development.
29 citations
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July 2003 in “Experimental Dermatology” The upper hair follicle is stable, while the lower part allows movement during hair growth.
3 citations
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April 2011 in “Dermatologic Surgery” Different women have various natural hairline shapes, and understanding this is important for designing hair transplants.
4 citations
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January 2014 in “PubMed” Hair growth is controlled by cycles influenced by hormones and various signals.
11 citations
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November 2021 in “Clinical, Cosmetic and Investigational Dermatology” Resveratrol may help hair grow, but more research is needed.
October 2024 in “Journal of Cutaneous and Aesthetic Surgery” Including the parietal eminence in hair transplants improves scalp appearance and balance.
1 citations
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April 2023 in “Animals” Wnt and BMP pathways stimulate hair growth in Min pigs, with Wnt being more effective.
December 2023 in “Journal of Food Science and Nutrition” Rosehip Seed Oil may help hair grow by activating important growth pathways and increasing hair follicle size in mice.
Hibiscus leaf extract in hair tonic promotes hair growth effectively.
A natural compound called VB-1 can help promote hair growth by boosting a specific cell signal in human skin cells.
18 citations
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April 2010 in “Actas Dermo-Sifiliográficas” Follicular unit hair transplantation is the standard method for natural-looking hair restoration in androgenic alopecia.
September 2008 in “Kitasato medical journal” January 2026 in “Digilib Repository Unila (Lampung University)” Celery essential oil at 2% can effectively promote hair growth.
4 citations
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January 2020 in “Dermatology Online Journal” Congenital atrichia with papular lesions causes permanent hair loss and skin bumps due to a gene mutation.
35 citations
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January 2020 in “Skin Pharmacology and Physiology” The review concluded that keeping the hair-growing ability of human dermal papilla cells is key for hair development and growth.
158 citations
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May 2003 in “Journal of Investigative Dermatology” Hair growth is influenced by dynamic changes in hair follicle cells, which could help treat hair loss.
December 2025 in “ILDS-DEV”
8 citations
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September 2021 in “EMBO Molecular Medicine” A new small peptide may help hair growth by activating a specific receptor and should be tested in humans.
30 citations
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February 1977 in “Nature” The dermal papilla can still grow new hair even after heavy radiation.
December 2014 in “Research and Reviews: Journal of Pharmacology and Toxicological Studies” Cabbage extract in hair gel may promote hair growth and could help treat hair loss.
January 2007 in “Linchuang pifuke zazhi” HIF-1α in fibroblasts boosts hair growth and health.
Fructus Ligustri Lucidi water extract helps hair growth by promoting cell survival and activating specific pathways.
January 2020 in “Archives of Pharmacy Practice” Hibiscus leaf extract may help hair grow better than flower extract.
6 citations
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January 2009 Russelia equisetiformis may help promote hair growth.
July 2025 in “ACS Pharmacology & Translational Science” Maslinic acid from olive extracts promotes hair growth like minoxidil.
Facial hair is crucial for gender affirmation, but many face financial barriers to achieving desired results.
February 2009 in “Springer eBooks” Pregnancy can cause more body and scalp hair growth and make nails brittle, but these changes often revert after giving birth.