12 citations,
July 2021 in “Scientific Reports” Glutamic acid helps increase hair growth in mice.
5 citations,
January 2021 in “PeerJ” Elephant tail-hair can show past stress levels, matching times when stressful events happened.
2 citations,
November 2013 in “International Journal of Dermatology” ALDOA levels drop in hair cells during hair loss.
2 citations,
January 2018 in “Biology and medicine” High testosterone levels in 20% of the women studied may indicate PCOS, while 80% had low levels with potential health impacts.
1 citations,
December 2022 in “Clinical, Cosmetic and Investigational Dermatology” Midscalp hair density and terminal hair percentage are good indicators of female pattern hair loss severity.
July 2024 in “Skin Appendage Disorders” Certain medications, including some immune drugs, contraceptives, and hair loss treatments, are often linked to hair loss.
January 2020 in “Indian Journal of Pharmaceutical Sciences” Natural products show promise for new hair loss treatments.
Hormones, especially testosterone and DHT, are key for penis development and function, and testosterone therapy may help with erectile dysfunction in those with low levels.
April 2023 in “Medizinische Genetik” Male-pattern hair loss is largely influenced by genetics, with key genes identified.
20 citations,
July 2006 in “Veterinary dermatology” Melatonin helped some Pomeranian dogs regrow hair, but it wasn't linked to estrogen receptors.