Contraceptives may affect hair growth due to estrogen, with effects varying by individual.
October 2025 in “Frontiers in Toxicology” A new method effectively predicts estrogen-related health effects for early screening.
26 citations
,
February 2009 in “Drug Development Research” 17α-estradiol is a safe estrogen that might protect the brain and doesn't cause feminization, needing more research for treating brain diseases.
13 citations
,
April 2002 in “International Journal of Toxicology” The safety of placental and umbilical extracts in cosmetics is uncertain, requiring more research.
8 citations
,
January 1987 in “Gynecological Endocrinology” Flutamide, an antiandrogen, has minimal impact on female rat endocrine systems and does not significantly change their reproductive cycles.
93 citations
,
February 2009 in “Annals of the New York Academy of Sciences” 5α‐reductase isozymes are crucial for prostate development and health, and targeting them can help prevent and treat prostate issues.
51 citations
,
March 2018 in “Journal of Investigative Dermatology” Current murine models need improvement for better human wound healing research translation.
34 citations
,
December 2015 in “Neuroscience & Biobehavioral Reviews” Some hormone-related drugs may protect brain cells in Parkinson's disease differently in men and women.
28 citations
,
March 1942 in “Journal of Endocrinology” Male rats grow hair faster than females, and certain hormones can slow or slightly increase hair growth, but not significantly beyond natural rates.
27 citations
,
February 2020 in “Journal of Cardiovascular Translational Research” Women generally handle heart enlargement better than men, but it's riskier for them if it occurs; hormones like estrogen offer some protection.
January 2007 in “UKnowledge (University of Kentucky)” Steers with winter hair coats and reduced sweating struggled with heat, leading to less grazing and poor performance.
33 citations
,
December 2017 in “Journal of neuroendocrinology” Sex and stress steroids quickly change brain cell structures in the hippocampus.
15 citations
,
June 1986 in “Pediatric Dermatology” Androgens increase pigmentation in young hamsters, but estrogens can reverse this effect.
January 2004 in “Banca y finanzas: Revista profesional de gestión financiera” Androgens increase pigmentation in certain hamster skin areas, but estrogens can reverse this effect.
January 2016 in “프로그램북(구 초록집)” Hormones and neuropeptides affect hair growth, with androgens having opposite effects on beard and scalp hair.
1 citations
,
November 2011 in “Open access journal of contraception” Birth control pills with low-dose estrogen and antiandrogenic progestins can effectively treat acne.
16 citations
,
September 1964 in “The journal of investigative dermatology/Journal of investigative dermatology” New compounds can block testosterone effects in rats and might help treat conditions like prostate cancer and acne.
1 citations
,
January 2015 in “Elsevier eBooks” Certain pesticides and fungicides can interfere with male hormone functions, potentially causing reproductive issues in male rats.
14 citations
,
June 2015 in “Toxicology and Industrial Health” Low doses of BPA can increase prostate growth and change hormone levels in adult rats.
1231 citations
,
May 2001 in “Hypertension” Men generally have higher blood pressure than premenopausal women, but postmenopausal women's blood pressure can surpass men's, and hormone therapy doesn't significantly help.
11 citations
,
August 2000 in “Journal of Endocrinology” DHEA acts like a male hormone on rat skin glands and doesn't turn into female hormones there.
Hair and nails can show hormone changes during puberty in dogs.
May 2021 in “British Small Animal Veterinary Association eBooks” If a dog's skin tests are normal but it has hair loss, consider other non-endocrine causes and choose tests based on the hair loss pattern.
8 citations
,
January 1998 in “Journal of Investigative Dermatology” Topical estrogen treatments did not change hair growth in certain mouse strains, questioning previous findings on their role in hair growth control.
9 citations
,
January 2016 in “Skin Pharmacology and Physiology” The study concluded that both estrogen and androgen receptors, which decrease with age, are linked to skin aging and may be hormonally regulated.
1 citations
,
March 1954 in “Archives of dermatology” Animal research has greatly advanced dermatology.
January 2026 in “Frontiers in Cellular Neuroscience” Neurosteroids like neuro-estrogen and neuro-androgen are crucial for brain function and can improve cognition and protect against aging-related decline.
187 citations
,
December 2005 in “Experimental Dermatology” Estrogens can improve skin aging but carry risks; more research is needed on safer treatments.
150 citations
,
April 2013 in “Dermato-endocrinology” Estrogen therapy can reduce skin aging but has cancer risks.
120 citations
,
October 2007 in “Clinical Interventions in Aging” Estrogens help reduce skin aging, and SERMs might offer similar benefits without the risks of hormone therapy.