November 2023 in “Systems Biology in Reproductive Medicine” This study assessed vitamin E and a combined oral contraceptive's impact on continuous light-induced PCOS in female rats, finding they reduced testosterone levels and modified oxidative stress, suggesting benefits via melatonin-related pathways.
May 2025 in “Veterinary Medicine and Science” In this study, oral melatonin given to male Pomeranian dogs with Alopecia X improved semen quality and testicular blood flow in a dose-dependent manner, but altered hormonal balance, indicating complex effects that require further investigation for long-term implications.
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March 2016 in “International Journal of Molecular Sciences” This review discusses the pathophysiology of sleep disturbance in children with atopic dermatitis and highlights the need for further research on management strategies, but provides no new clinical results.
February 2023 in “Journal of Drugs in Dermatology” In this literature review, researchers found evidence that topical melatonin may improve scalp hair growth, density, and thickness in patients with androgenetic alopecia, especially in men.
January 2026 in “Updates in clinical dermatology” Proper nutrition and alternative therapies can help manage hair loss.