92 citations
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June 2005 in “Journal of Investigative Dermatology” All-trans retinoic acid causes hair loss by increasing TGF-β2 in hair follicle cells.
77 citations
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January 1980 in “Carcinogenesis” TPA is about 50 times more effective at promoting tumors than MZ.
September 2023 in “International Journal of Trichology” A rare hair regrowth pattern can occur in some people with alopecia areata.
26 citations
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January 1992 in “Carcinogenesis” TPA strongly increases ODC activity in certain skin cells, potentially aiding tumor growth.
14 citations
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February 2007 in “Irish Veterinary Journal” A dog with a pituitary tumor developed tertiary hypothyroidism, improved with treatment, but was later euthanized due to neurological issues.
21 citations
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February 2003 in “Hormones and Behavior” Androgens boost certain nest-building behaviors and greatly reduce food intake in rabbits.
37 citations
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April 2013 in “PLoS ONE” Thymosin Beta 4 helps human dental pulp cells develop into tooth-forming cells, suggesting it could aid dental regeneration.
1 citations
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January 2018 in “Journal of Gynecologic Surgery” Removing both ovaries can treat increased testosterone and related symptoms in postmenopausal women with ovarian hyperthecosis.
January 2016 in “AACE Clinical Case Reports” Treatment restored normal sexual characteristics and blood condition in a patient with testicular cancer.
21 citations
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November 2014 in “Journal of Endocrinological Investigation” Cross-sex hormone therapy is important for managing gender dysphoria and requires careful monitoring and healthcare provider education.
5 citations
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February 2016 in “Hanbang an i bi inhu pibugwa hakoeji/Hanbang an'i'bi'in'hu pibu'gwa haghoeji” Microneedle therapy combined with Hwangryeonhaedoktang solution improved hair growth in mice better than microneedle therapy alone.
1 citations
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September 2020 in “Journal of Dermatological Science” The gene LRRC15 is more active in balding areas of the scalp compared to non-balding areas.
16 citations
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April 1998 in “Journal of Investigative Dermatology” ACTH promotes hair growth in mink, but α-MSH does not.
62 citations
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January 2009 in “Biochemistry” Vitamin D receptor binds similarly to natural and synthetic ligands, affecting gene regulation.
9 citations
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July 2020 in “Journal of Animal Physiology and Animal Nutrition” Melatonin given to pregnant rabbits improved their babies' fur quality.
116 citations
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August 2010 in “Nature” Scientists turned rat thymus cells into stem cells that can help repair skin and hair.
2 citations
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January 2017 in “Journal of Cosmetics, Dermatological Sciences and Applications” TrichoTech™ may help hair growth and skin repair by increasing fibroblast growth and activity.
33 citations
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August 1993 in “FEBS Letters” A new enzyme in rats may help regulate hair growth.
May 2025 in “Experimental Dermatology” Triphenylphosphine oxide can increase oil production and reduce inflammation in skin cells without affecting TRPM5.
19 citations
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September 2007 in “The Journal of Steroid Biochemistry and Molecular Biology” Glucocorticoid receptors help regulate genes important for skin health and hair growth.
April 2015 in “Plastic and Reconstructive Surgery” Activating TLR3 helps improve skin and hair follicle regeneration after wounds.
18 citations
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November 2016 in “Transgenic research” Overexpressing Tβ4 in cashmere goats improves hair fiber traits and increases cashmere yield.
1 citations
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January 2018 in “Indian Journal of Dermatology/Indian journal of dermatology” Retinoids might cause temporary hyperthyroidism in some patients.
January 2017 in “International journal of science and research” Trichotillomania is a chronic hair-pulling disorder, more common in females, treated with therapy and sometimes medication.
17 citations
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May 2011 in “Gene Therapy” Using polyethylenimine-DNA to deliver the hTERT gene can stimulate hair growth and may be useful in treating hair loss, but there could be potential cancer risks.
4 citations
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April 2018 in “Journal of Investigative Dermatology” Hydroxypinacolone retinoate is a potent anti-aging ingredient for skin that is more effective and less irritating than other forms of retinoids.
28 citations
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January 2013 in “Journal of Thyroid Research” Thyroid hormone may speed up wound healing and hair growth, but more research is needed to understand its role in skin repair and use as a treatment.
1 citations
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November 2012 in “European Journal of Cell Biology” The authors clarified data overlap and corrected a figure error, apologizing for any confusion.
4 citations
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December 2025 in “Frontiers in Immunology” Autoimmune thyroid disease raises the risk of many health issues but lowers the risk of lung cancer and allergic rhinitis.
November 2025 in “BMC Endocrine Disorders” The TT/DHT ratio may help identify PCOS patients with severe metabolic issues.