September 2020 in “International journal of computer science and mobile computing” Low-level laser therapy can stimulate hair growth and increase hair density, making it a promising treatment for hair loss.
February 2018 in “Medical Hypotheses” Male pattern hair loss may have evolved to promote younger fathers for offspring health and survival, encouraging monogamy and paternal nurturing.
82 citations
,
September 2018 in “Nature Communications” A certain smell receptor in hair follicles can affect hair growth when activated by a synthetic sandalwood scent.
63 citations
,
September 2009 in “Regenerative Medicine” Scientists found a way to grow human hair cells in a lab that can create new hair when transplanted.
35 citations
,
February 2015 in “Experimental Dermatology” Cells from the base of hair follicles help blood vessel cells survive and grow, which is important for healthy hair.
15 citations
,
July 1999 in “Dermatologic Clinics” The document concludes that immune system abnormalities cause alopecia areata, but the exact process is still not completely understood.
13 citations
,
July 2019 in “Journal of Dermatological Science” Increasing alkaline phosphatase in human skin cells helps to grow more hair.
4 citations
,
July 2020 in “Biochemical and Biophysical Research Communications” A protein called ectodysplasin-A2 increases a hair growth inhibitor in balding cells, which could be a target for hair loss treatment.
November 2024 in “Applied Sciences” Placenta products might help with hair loss, but more research is needed.
May 2024 in “Clinical Cosmetic and Investigational Dermatology” Manipulating cell cleanup processes could help treat hair loss.
1 citations
,
November 2022 in “Research Square (Research Square)” A protein called HIF-1a helps control hair growth genes and could be targeted to treat hair loss.
1 citations
,
April 2016 in “Journal of Investigative Dermatology” Prostaglandin D2 increases testosterone levels in skin cells through reactive oxygen species, not enzymes, which could lead to new hair loss treatments.
September 2017 in “Journal of Investigative Dermatology” Loss of COL17A1 causes hair follicle stem cells to age and leads to hair loss.
Mutations in the hairless protein gene cause hair loss.
67 citations
,
February 1994 in “Developmental dynamics” Specific proteins and molecules play key roles in the development of human hair follicles.
10 citations
,
June 2019 in “International Journal of Cosmetic Science” Some plant-based chemicals may help with hair growth, but more research is needed to confirm their effectiveness.
9 citations
,
August 2023 in “Journal of Investigative Dermatology” IL-15 helps hair grow longer and stronger by extending the growth phase and reducing cell death.
9 citations
,
August 2018 in “Biomedical dermatology” A peptide called DPS-1 helps human scalp cells grow and stimulates hair growth in mice.
4 citations
,
July 2025 in “Frontiers in Pharmacology” Cooling with antioxidants helps protect hair during chemotherapy.
3 citations
,
June 2002 in “Transgenic Research” Scientists made a mouse that can be made to lose hair and then grow it back.
1 citations
,
April 2022 in “Regenerative Therapy” Activating the GDNF-GFRα1-RET signaling pathway could potentially promote skin and limb regeneration in humans and could be used to treat hair loss and promote wound healing.
1 citations
,
May 2017 in “InTech eBooks” Some natural remedies may help with hair regrowth, but more research is needed to confirm their effectiveness and safety.
February 2026 in “Cosmetics” Milk-derived exosomes may help treat hair loss by boosting hair follicle growth.
December 2025 in “Preprints.org” Milk-derived exosomes may help treat hair loss by boosting hair cell growth and signaling.
February 2025 in “Natural Product Communications” Aloe vera, Centella asiatica, Green Tea, and Pueraria mirifica extracts together boost hair growth by enhancing stem cell properties.
11 citations
,
January 1989 Two patients had a unique form of trichothiodystrophy with reduced high-sulfur proteins in their hair.
24 citations
,
June 2018 in “PubMed” Serenoa repens extract helps regrow hair and repair hair loss by activating certain cell growth pathways.
21 citations
,
July 2010 in “International Journal of Cosmetic Science” Older people's hair becomes less shiny because it gets more uneven and curved.
5 citations
,
January 2017 in “Laboratory Animal Research” Gold thread implantation may help hair grow in humans and mice.
2 citations
,
September 2014 in “Nature reviews. Drug discover/Nature reviews. Drug discovery” Specific immune cells cause alopecia areata and blocking certain proteins can prevent it.