October 2022 in “Research Square (Research Square)” The conclusion is that certain chemicals from Bacillus subtilis help improve plant root growth through a hormone-related process.
169 citations
,
November 2009 in “The Journal of Clinical Endocrinology & Metabolism” Prepubertal girls have higher sex steroid levels than boys, possibly leading to earlier puberty.
June 2013 in “Vestnik dermatologii i venerologii” Women with hair thinning have disrupted steroid hormone levels, but this doesn't often show as other health issues. More research is needed on hormone balance in this condition.
29 citations
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June 2016 in “Experimental Dermatology” MCHR2 gene duplications may be linked to alopecia areata.
May 2023 in “International journal of pharmaceutical sciences and medicine” Sunflower oil was found to promote hair growth in mice with hormone-induced hair loss.
51 citations
,
January 2004 in “Domestic animal endocrinology” Melatonin implants and long daylight hours alter the timing of hormone release and hair growth in mouflon sheep.
12 citations
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February 2016 in “Biochemical and Biophysical Research Communications” Sulforaphane may help with hair growth by breaking down a hormone that causes hair loss.
30 citations
,
July 2023 in “Clinical Chemistry and Laboratory Medicine (CCLM)” Cortisone in hair is a more reliable indicator of stress hormone exposure than cortisol.
2 citations
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October 2012 in “PubMed” Topical minoxidil effectively treats Female Pattern Hair Loss in women of all ages and hormone levels, but evidence for antiandrogens is limited.
7 citations
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January 2010 in “Animal” Angora goat hair grows faster and produces more protein than cashmere goat hair, and certain hormones and nutrients positively affect hair growth and protein synthesis.
September 2023 in “Scientific reports” Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.
51 citations
,
May 1996 in “American journal of physiology. Regulatory, integrative and comparative physiology/American journal of physiology. Regulatory, integrative, and comparative physiology” Gray seals use more energy and have higher hormone levels during their annual fur-shedding period.
46 citations
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May 2012 in “Molecular and Cellular Endocrinology” Human skin produces sex hormones like estrogen and testosterone, influenced by ARO and StAR, which may affect skin elasticity and hair growth.
32 citations
,
January 1990 in “Clinical Endocrinology” Women with female pattern hair loss have higher levels of certain androgens, suggesting increased androgen exposure to hair follicles.
5 citations
,
January 1993 in “Hormone and Metabolic Research” DHEA and DHEA-S help maintain underarm hair in older women.
1 citations
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December 2021 in “Animals” Low zinc and selenium levels in sheep are linked to hair loss and thyroid problems.
1 citations
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January 2016 in “Journal of Microbial & Biochemical Technology” The Free Androgen Index (FAI) is the best indicator of early hair loss in men before age 30.
10 citations
,
November 2018 in “Developmental Psychobiology” Hair can effectively measure DHEA and testosterone levels in children.
96 citations
,
September 1975 in “The Journal of Clinical Endocrinology & Metabolism” Hormone levels change during puberty, leading to physical developments like pubic hair and voice changes.
195 citations
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February 2007 in “The Journal of Clinical Endocrinology and Metabolism” Dutasteride and finasteride may reduce sperm count and volume but don't affect movement or shape; effects are reversible after stopping.
Caffeine can potentially treat common hair loss by counteracting hair follicle shrinkage caused by hormones.
Melatonin improves tomato root growth and plant health at certain levels by affecting genes and hormones but can damage roots at high levels.
12 citations
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October 2004 in “Experimental Gerontology” Changes in testosterone and estrogen receptor genes can affect how men age, influencing body fat, hair patterns, and possibly leading to skin disorders.
3 citations
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September 2016 in “Natural Product Communications” Germacrene analogs, especially 8-Hydroxy germacrene B, are more effective than germacrone at blocking a hormone-related enzyme and could help treat hair loss.
September 2025 in “Cosmetics” NMN supplements may improve hair quality and appearance in middle-aged women.
19 citations
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May 2014 in “Molecules” Avicequinone C, a compound found in the Avicennia marina plant, can reduce hair loss by inhibiting a hormone linked to androgenic alopecia.
17 citations
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December 2015 in “BMC Complementary and Alternative Medicine” A new plant extract from Avicennia marina could potentially be used to treat common hair loss.
January 2011 in “Kufa Medical Journal” Minoxidil solution applied on skin can effectively promote hair growth and increase hair thickness in male mice.
Iron influences root hair growth during phosphate starvation by affecting auxin distribution and vesicle trafficking.
3 citations
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November 2022 in “Experimental dermatology” Melatonin may inhibit melanoma growth and has potential as a cancer therapy aid, but its effects on human skin pigmentation need more research.