April 2016 in “Journal of Investigative Dermatology” Phenylephrine may help prevent hair loss from pulling on the hair roots.
April 2016 in “Journal of Investigative Dermatology” A peptide known for reducing wrinkles also effectively inhibits an enzyme linked to skin inflammation and acne.
50 citations
,
May 2004 in “Journal der Deutschen Dermatologischen Gesellschaft” Estrogens generally inhibit hair growth and improve skin quality, but their exact effects on hair follicles are complex and not fully understood.
159 citations
,
July 2006 in “Endocrine Reviews” Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.
97 citations
,
April 2016 in “Andrology” Hormones and metabolism play a complex role in prostate enlargement, and more research is needed to improve diagnosis and treatment.
89 citations
,
January 2009 in “Advances in Clinical Chemistry” Fetal skin heals without scarring due to unique cells and processes not present in adult skin healing.
77 citations
,
June 2007 in “PLoS ONE” Birds can regenerate inner ear cells using specific gene pathways, unlike mammals.
56 citations
,
January 2015 in “Circulation” Finasteride helps reduce heart issues and improves heart function.
54 citations
,
December 2007 in “Best Practice & Research Clinical Endocrinology & Metabolism” Targeting glucocorticoid action might help treat type-2 diabetes, but human trials are needed.
48 citations
,
June 2014 in “Neurobiology of Disease” The study suggests that motor neurons created from stem cells of patients with spinal and bulbar muscular atrophy show signs of the disease, including changes in protein levels and cell functions.
40 citations
,
April 2014 in “Genes & Development” Hormones during pregnancy and lactation keep skin stem cells inactive, preventing hair growth.
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.
31 citations
,
November 2014 in “Investigative Ophthalmology & Visual Science” A natural steroid in the body may protect against eye damage in glaucoma.
28 citations
,
August 2003 in “Steroids” Hirsute women have lower type 2 17β-HSD enzyme levels, which improve with treatment.
23 citations
,
July 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicle bulge cells don't help skin regrow after glucocorticoid damage; interfollicular epidermis cells do.
14 citations
,
September 2015 in “Expert Opinion on Therapeutic Targets” The conclusion is that while oral contraceptive pills are effective for PCOS-related high androgen levels, new treatments with fewer side effects are needed.
12 citations
,
September 2018 in “International Journal of Cosmetic Science” Palmitoyl tetrapeptide-20 may help reduce hair greying and increase melanin production.
9 citations
,
October 2011 in “Journal of proteomics” Taxol damages hair growth cells, causing hair loss.
6 citations
,
April 2022 in “Frontiers in cell and developmental biology” The research identified key proteins and genes that may influence wool bending in goats.
3 citations
,
September 2020 in “Bladder cancer” 5α-reductase inhibitors don't stop bladder cancer from developing or getting worse.
1 citations
,
October 2025 in “International Journal of Nanomedicine” Exosomes could revolutionize skin disease treatment and healing.
1 citations
,
March 2024 in “Signal transduction and targeted therapy” NF-κB signaling is crucial in many diseases and can be targeted for new treatments.
1 citations
,
March 2012 in “Journal of Dermatological Science” Testosterone, progesterone, and levonorgestrel change enzyme levels related to fat production in hamster skin, which could affect skin oil and acne.
February 2024 in “PloS one” Nutraceuticals that promote hair growth do not reduce tamoxifen's effectiveness in breast cancer treatment.
January 2024 in “Frontiers in immunology” Histone modification is key in treating chronic inflammatory skin diseases.
Avicennia Marina extract and avicequinone C can reduce hair loss hormone production and increase hair growth factors, suggesting they could be used to treat androgenic alopecia.
23 citations
,
December 2004 in “Differentiation” Sex hormones affect hair and feather growth and may help manage alopecia and hormone-dependent cancers.
349 citations
,
January 2005 in “The FASEB journal” Human skin can make serotonin and melatonin, which help protect and maintain it.
305 citations
,
February 2007 in “Hormone and metabolic research” Human skin makes sexual hormones that affect hair growth, skin health, and healing; too much can cause acne and hair loss, while treatments can manage these conditions.
224 citations
,
March 2006 in “Seminars in Cutaneous Medicine and Surgery” The document concludes that understanding hair follicle biology can lead to better hair loss treatments.