25 citations
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February 1977 in “American Journal of Veterinary Research” Increasing daylight to 16 hours in winter can make mares ovulate and cycle earlier.
3 citations
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January 2023 in “Journal of Cutaneous and Aesthetic Surgery” Intradermal PRP significantly improved melasma in dark skin, with lasting results and no relapse after 3 months.
52 citations
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June 2013 in “The Journal of Clinical Endocrinology and Metabolism” The research found that anovulatory young women have higher androgen and hormone levels than those who ovulate, suggesting immature hormonal regulation rather than a specific condition.
Retinoids can help treat skin pigmentation disorders by affecting melanin production.
109 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.
2 citations
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June 2025 in “International Journal of Molecular Sciences” Chitosan and melatonin together improve wound healing and have potential in medicine and cosmetics.
60 citations
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October 2010 in “Molecular Imaging and Biology” Increased skin pigmentation in mice reduces bioluminescent signal accuracy.
6 citations
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November 1997 in “International Journal of Dermatology” Women with acne and irregular periods had higher active testosterone levels, which could suggest the usefulness of antiandrogen treatment.
January 2024 in “Open MIND” Melatonin and photobiomodulation both help hair regrowth in German Spitz dogs with alopecia X.
February 2025 in “International Journal of Molecular Sciences” RORA plays a key role in controlling seasonal hair molting by affecting hair follicle cell activity.
April 2026 in “Journal of Dermatology Research” The skin communicates with the nervous system, and targeting neurohormones like melatonin and oxytocin could help treat skin issues.
30 citations
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November 2013 in “SLEEP” Blocking testosterone action may improve breathing during NREM sleep in healthy men.
Melatonin and photobiomodulation are effective for treating Alopecia X in German Spitz dogs.
March 2025 in “Frontiers in Veterinary Science” Changing light exposure boosts hormone levels and antioxidant activity, improving cashmere growth in goats.
October 2013 in “Journal of the American College of Cardiology” Higher aldosterone levels in urine are linked to a nondipper blood pressure pattern in healthy people.
August 2024 in “Siberian Journal of Life Sciences and Agriculture” Melatonin and lyotritone improve hair growth and quality in white rats.
12 citations
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March 2019 in “Cosmetics” The oral supplement with Pinus pinaster and Grape seed extract, used with sunscreen, effectively and safely improved mild-to-moderate facial melasma.
32 citations
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September 1966 in “Journal of Investigative Dermatology”
November 2025 in “DOAJ (DOAJ: Directory of Open Access Journals)” Insomnia may increase alopecia areata risk, but more research is needed.
June 2023 in “NILES Journal forGeriatric and Gerontology/NILES Journal for Geriatric and Gerontology” Oral tranexamic acid is a safe and effective treatment for melasma.
April 2020 in “Arquivo Brasileiro De Medicina Veterinaria E Zootecnia” A horse in Brazil had seasonal hair loss possibly linked to light exposure and melatonin levels.
30 citations
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March 2015 in “PLoS ONE” Thyroxine can adjust the body's peripheral clock, potentially helping treat clock-related diseases.
August 2023 in “İzmir tepecik eğitim hastanesi dergisi” Vitamin D levels do not significantly relate to the causes of PCOS or DOR in infertile patients.
2 citations
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August 2022 in “Animals” Essential oils may improve dogs' health and melatonin can help with their sleep and anxiety, but both should be used carefully.
October 2025 in “Nepal Journal of Dermatology Venereology & Leprology” Testosterone levels don't predict acne severity in adult women.
83 citations
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February 1977 in “PubMed” Increasing light exposure in winter can make mares ovulate and cycle earlier.
Retinoids or their analogs could treat skin pigmentation disorders like melasma and vitiligo.
April 2024 in “International journal of molecular sciences” Dermal factors are crucial in regulating melanin production in skin.
7 citations
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January 2015 in “Genetics and molecular research” The RORα gene is active in different parts of cashmere goat hair follicles and may be influenced by melatonin, especially in December when hair growth changes.
15 citations
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June 1986 in “Pediatric Dermatology” Androgens increase pigmentation in young hamsters, but estrogens can reverse this effect.