10 citations
,
October 2010 in “International Journal of Andrology” Finasteride doesn't affect oral testosterone undecanoate, and high DHT levels may cause acne, prostate issues, and hair loss.
9 citations
,
January 2007 in “Endocrine Practice” A woman's male-like symptoms and high testosterone were due to ovarian hilus-cell hyperplasia, which improved after surgery.
9 citations
,
December 1987 in “European journal of endocrinology” The treatment significantly reduced hair growth and male hormone levels in hirsute women.
8 citations
,
July 2019 in “Cell Proliferation” Researchers found a way to turn skin cells into cells that can grow new hair.
8 citations
,
January 2001 in “Methods in enzymology on CD-ROM/Methods in enzymology” Oligomeric procyanidins may help hair grow by affecting cell growth and the hair growth cycle.
7 citations
,
April 2012 in “Clinical investigation” Transdermal testosterone can improve sexual desire in postmenopausal women but lacks long-term safety data and is not FDA-approved for this use.
6 citations
,
April 2017 in “JAMA Dermatology” Men's hair loss is not linked to their sex hormone levels, except for lower DHEAS in those with hair loss.
6 citations
,
May 2016 in “Urolithiasis” Balding and low testosterone increase risk of urinary stones.
5 citations
,
October 1984 in “The BMJ” Up to 50% of scalp hair can be lost before it appears thin, and treatment is only needed for hair loss caused by diseases or deficiencies.
5 citations
,
January 2021 in “Biomedicine & Pharmacotherapy” Policosanol helps treat hair loss by balancing hormones and supporting hair growth.
5 citations
,
July 2006 in “Contact dermatitis” Ammonium bisulfite in hair bleach can cause facial eczema.
3 citations
,
June 2010 in “Pharmacognosy journal” The polyherbal hair oil effectively reduces dandruff and promotes hair growth.
2 citations
,
June 2025 in “Drug Testing and Analysis” The method effectively detects MeT and TP in dried blood spots after cream application.
2 citations
,
June 2022 in “Scientific reports” Women with PCOS have higher hair cortisol levels, which are linked to worse metabolic and inflammatory conditions.
2 citations
,
April 2021 in “International Journal of Pharmaceutics” Serum formulations were better at delivering molecules to the hair bulb than nanoparticles.
2 citations
,
September 2020 Long-term high testosterone levels can improve bone density and reduce body fat but may increase the risk of prostate cancer and high blood pressure.
1 citations
,
July 2016 in “Cosmetics” Black henna tattoos can cause severe allergies to hair and textile dyes, and there's a need for greater public awareness and regulation.
1 citations
,
January 1997 in “Skin research” Hinokitiol and pantothenylethylether in hair products can cause strong allergic reactions.
1 citations
,
November 2021 in “Jurnal Farmasi Indonesia” Secang wood extract hair tonic promotes hair growth and meets quality standards.
1 citations
,
December 2019 in “JURNAL BIOSAINS” Krokot extract hair tonic is safe and effective for hair growth.
1 citations
,
February 2016 in “European Journal of Obstetrics & Gynecology and Reproductive Biology” An 84-year-old woman's hair loss was due to a rare condition called Leydig cell hyperplasia, which was treated with surgery.
The conclusion is that hair supplement ingredients may be unsafe and should be disclosed and proven safe before use.
1 citations
,
December 2018 in “Veterinary dermatology” The hair coat disorder in Schipperkes is similar to Alopecia X and involves increased androstenedione levels and hair cycle arrest.
February 2026 in “PubMed” Most hair dye allergies are caused by para-phenylenediamine (PPD), and safer hair dye options are needed.
December 2024 in “Jurnal Mandala Pharmacon Indonesia” Ramania leaf extract is non-toxic but can cause stomach ulcers at high doses.
December 2024 in “International Journal on Science and Technology” Herbal hair oils promote hair growth effectively with minimal side effects.
June 2024 in “JURNAL PENDIDIKAN DAN KELUARGA” Celery extract can be used as a natural hair tonic for treating hair loss.
April 2024 in “Cosmetics” Different oils affect hair flexibility and strength, with their impact varying on whether hair is virgin or bleached.
January 2024 in “Jurnal Ilmiah Ibnu Sina (JIIS) Ilmu Farmasi dan Kesehatan” The F2 hair tonic with shallot extract is effective and stable for hair growth.
April 2023 in “Dermatology practical & conceptual” Lenalidomide helps hair follicle stem cells turn into melanocytes, which may improve repigmentation in vitiligo.