41 citations,
September 2018 in “Australasian journal of dermatology” No systemic treatment for alopecia areata has strong evidence of effectiveness.
39 citations,
April 2018 in “Hormones” No consistent link between genotype and phenotype in 5-α-Reductase type 2 deficiency.
36 citations,
May 2011 in “Dermatologic therapy” No treatments fully cure or prevent alopecia areata; some help but have side effects or need more research.
35 citations,
April 2011 in “International Journal of Dermatology” No true link between AGA and insulin resistance, but coexistence may worsen AGA.
31 citations,
August 1963 in “Archives of Dermatology” No systemic causes were found for the patients' conditions.
17 citations,
October 2017 in “Journal of Cutaneous Medicine and Surgery” No treatment has been proven to effectively stop hair loss or regrow hair in Frontal Fibrosing Alopecia, and more research is needed.
15 citations,
December 2017 in “Journal of Investigative Dermatology” No strong genetic link to other skin conditions was found, but some genetic factors may make people more likely to get seborrheic dermatitis.
15 citations,
November 2015 in “Dermatology Research and Practice” No clear link between hair loss and metabolic syndrome, but some differences in blood pressure and glucose levels.
15 citations,
June 2011 in “British Journal of Dermatology” No link found between aromatase gene and female hair loss.
13 citations,
April 2009 in “PLOS ONE” No clear link between androgen receptor variation and hair loss, but more research needed.
12 citations,
May 2010 in “PubMed” No definitive link between finasteride and male breast cancer, but further research is needed.
12 citations,
February 2001 in “Annals of Pharmacotherapy” No effective treatment for hair loss after childbirth was found, but it usually gets better on its own and some cosmetic methods might help.
10 citations,
January 2015 in “The Journal of Clinical Pharmacology” No clear link between finasteride use and acute pancreatitis risk.
9 citations,
January 2017 in “International Journal of Trichology” No current system perfectly classifies male-pattern hair loss, indicating a need for a new system for better diagnosis and treatment.
7 citations,
July 2013 in “International Journal of Dermatology” No link found between Coxsackie viruses and pemphigus.
5 citations,
January 2016 in “Dermatology” No significant link between CAG repeat numbers and female pattern hair loss in Han Chinese population.
5 citations,
June 1994 in “Journal of Cutaneous Pathology” No CD44 in alopecia areata, present in normal and androgenetic alopecia.
5 citations,
August 1987 in “Andrology” Men with low or no sperm count have lower salivary testosterone levels, and saliva testing can measure their testosterone well.
4 citations,
November 2020 in “Journal of The American Academy of Dermatology” No strong proof that platelet-rich plasma effectively treats hair loss.
3 citations,
January 2010 in “Expert Opinion on Pharmacotherapy” No treatment fully stops excessive hair growth in women, but various methods can help manage it effectively.
2 citations,
October 2021 in “Skin health and disease” No significant link between male pattern baldness and COVID-19 severity was found.
2 citations,
December 2015 in “Journal of Cosmetic Dermatology” No clear link between specific gene and hair loss in Mexican brothers.
2 citations,
June 2013 in “Lasers in surgery and medicine” The hot-wire hair removal device is no better than shaving.
2 citations,
February 2009 in “Journal of Evidence-Based Medicine” No treatment showed significant long-term hair growth benefits for alopecia areata.
2 citations,
April 1981 in “International Journal of Dermatology” No treatment reliably changes Alopecia Areata's course; reassurance and possibly a wig are recommended.
1 citations,
January 2018 in “Annals of medical research” No link found between blood groups, Rhesus factor, and ferritin levels in women with hair loss.
1 citations,
May 2006 in “Expert Opinion on Therapeutic Patents” No FDA-approved treatments for chemotherapy-induced hair loss existed in 2006; more research was needed.
1 citations,
December 1992 in “International Journal of Dermatology” No significant hormone differences found in postmenopausal women with androgenetic alopecia.
1 citations,
November 1981 in “PubMed” No clear conclusion available.
October 2024 in “Cochrane library” No high-certainty evidence supports any specific acne treatment.