10 citations
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April 1995 in “Animal Science/Animal science” Melatonin implants can change the seasonal prolactin levels and hair growth in adult cashmere goats but not in juveniles, and don't delay spring moult for better fiber harvesting.
6 citations
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August 1996 in “The Journal of Clinical Endocrinology and Metabolism” MK-386 and finasteride together effectively reduce DHT levels, potentially treating acne and male pattern baldness.
5 citations
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October 2010 in “General and Comparative Endocrinology” Flutamide and finasteride reduced sex hormones in pregnant hyenas, but increased them in males.
2 citations
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April 2020 in “Clinical and experimental obstetrics & gynecology” Hair levels of estradiol and progesterone are higher in premenopausal than postmenopausal women, but the difference isn't statistically significant, indicating the need for a better measurement method.
162 citations
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April 2016 in “The Lancet Diabetes & Endocrinology” Testosterone therapy in transgender men has both desired effects like increased muscle mass and potential health risks such as higher cardiovascular risk.
Hair and nails can show hormone changes during puberty in dogs.
17 citations
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August 2019 in “JAMA Facial Plastic Surgery” Some men lost hair after deoxycholic acid treatment for neck fat, but most saw improvement or resolution.
11 citations
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September 1999 in “Biological Trace Element Research” Mineral deficiencies in pregnant women can be improved with proper supplementation.
4 citations
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December 2008 in “The Thai Journal of Veterinary Medicine” Zinc methionylglycinate improves dog hair and zinc levels better than zinc sulfate.
February 2026 in “Psychoneuroendocrinology” Hair cortisol concentration partly reflects HPA axis regulation but doesn't capture all its complexities.
July 2023 in “Drug testing and analysis (Print)” Homemade hair treatments can significantly lower drug levels in hair, possibly causing false-negative drug tests.
21 citations
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January 2017 in “MethodsX” Methanol is better than isopropanol for washing grizzly bear hair to measure cortisol.
6 citations
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September 2010 in “Animal” Selecting Angus cattle for earlier puberty lowers prolactin levels but doesn't affect hair growth.
122 citations
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October 2010 in “Clinica Chimica Acta” Washing hair with water or shampoo lowers cortisol levels in hair.
98 citations
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November 2014 in “PLoS ONE” Hyaluronidase speeds up wound healing and reduces inflammation.
88 citations
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June 2016 in “Human Reproduction Update” New hormonal contraceptives are safer, have fewer side effects, and offer health benefits for women.
83 citations
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February 1977 in “PubMed” Increasing light exposure in winter can make mares ovulate and cycle earlier.
59 citations
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August 1998 in “International Journal of Dermatology” Genetics and hormones cause hair loss; finasteride treats it safely.
50 citations
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November 2020 in “Physiology & behavior” People with depression often have higher hair cortisol levels, while those with PTSD tend to have lower levels, but more research is needed to understand this fully.
41 citations
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September 2014 in “Journal of Pharmacy and Pharmacology” Melatonin may help treat PCOS symptoms in rats.
27 citations
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July 2017 in “Facial Plastic Surgery” Platelet-Rich Plasma (PRP) shows promise for hair growth and skin improvement in aesthetic surgery.
25 citations
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February 1989 in “The Journal of Clinical Pharmacology” This document studied minoxidil in healthy volunteers. Minoxidil is quickly absorbed and eliminated from the body.
23 citations
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January 2001 in “International journal of toxicology” St. John's Wort extract and oil safety in cosmetics is unclear; more data needed on photosensitization, toxicity, and human irritation.
22 citations
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January 2010 in “Clinical Medicine Insights Endocrinology and Diabetes” Forearm hair has more cortisol than lower leg hair.
21 citations
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November 2020 in “Chemical Engineering Journal” The hydrogel with silver and mangiferin helps heal wounds by killing bacteria and aiding skin and tissue repair.
21 citations
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July 2014 in “Clinics in Dermatology” Hormonal contraceptives can help treat acne by affecting sebum production and androgen levels.
20 citations
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February 1985 in “Archives of Dermatology” Minoxidil helps hair regrowth, especially with more indeterminate hairs.
19 citations
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March 1990 in “Journal of Cardiovascular Pharmacology” Minoxidil affects rat fluid dynamics, altering pressure and circulation, improving blood flow and hair growth.
18 citations
,
May 1992 in “American Journal of Biological Anthropology” Higher androgen levels do not cause baldness in men.
16 citations
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January 2008 in “Acta dermato-venereologica” Vitamin B12 deficiency can cause skin darkening and increased blood vessels, but treatment can improve symptoms.