TLDR 88% phenol is effective for treating alopecia areata.
The study evaluated the efficacy of 88% phenol in treating alopecia areata (AA) in 50 patients aged 7-45 years with nonscarring patchy hair loss on the scalp. Patients received phenol applications every 3 weeks, and hair growth was assessed based on texture, pigmentation, and density. Results showed significant improvement in hair texture and pigmentation by the 9th week, and steady improvement in hair density from the 9th week onwards. By the end of the study, 78% of patients exhibited good to excellent hair regrowth, with no poor responses. Side effects were minimal, including temporary hypopigmentation in 10% of patients and hyperpigmentation in 6%. The study concluded that 88% phenol was an effective, low-cost treatment for stable AA.
45 citations,
January 2010 in “International journal of trichology” Topical immunotherapy, especially with DPCP, is effective for treating severe alopecia areata.
132 citations,
November 1998 in “Journal of the American Academy of Dermatology” Topical sensitizers have mixed success in treating alopecia areata.
89 citations,
October 1996 in “Dermatologic Clinics” Alopecia areata is likely caused by a combination of genetic factors and immune system dysfunction, and may represent different diseases with various causes.
117 citations,
February 1996 in “International Journal of Dermatology” A 300 mg monthly pulse of prednisolone effectively and safely treats widespread alopecia areata.
84 citations,
August 1991 in “British Journal of Dermatology” Most children treated with diphencyprone regrew some or all of their hair.
36 citations,
March 1989 in “Cleveland Clinic Journal of Medicine” 3% topical minoxidil effectively treats extensive alopecia areata.
1 citations,
August 2021 in “Cosmoderma” Low-dose oral minoxidil is effective and well-tolerated for treating hair loss.
1 citations,
September 2002 in “PubMed” Minoxidil helps stimulate hair growth and reduce hair loss in women with androgenic alopecia.
54 citations,
March 1987 in “Journal of The American Academy of Dermatology” 3% topical minoxidil effectively treats extensive alopecia areata with few side effects.