February 2026 in “Frontiers in Immunology” Ivarmacitinib significantly improved hair regrowth in severe alopecia areata after tofacitinib was less effective.
Tofacitinib may effectively treat hair loss and improve symptoms in autoimmune conditions like alopecia areata and Sjögren's syndrome, but long-term treatment might be necessary.
April 2016 in “Journal of the American Academy of Dermatology” Tofacitinib helped a person with total body hair loss grow hair again without bad side effects.
May 2026 in “SKIN The Journal of Cutaneous Medicine” Baricitinib may cause low blood sugar in some patients, so careful monitoring is needed.
February 2025 in “PubMed” CS12192 effectively treats alopecia areata with better safety than current options.
October 2024 in “The American Journal of Gastroenterology” Upadacitinib improved both Crohn's ileitis and alopecia universalis in a patient.
2 citations
,
June 2024 in “Journal of Clinical Medicine” Alopecia Areata can affect nails, often improving on its own, but JAK inhibitors may help.
1 citations
,
January 2023 in “Research Square (Research Square)” A woman's vitiligo improved with tofacitinib treatment, and her skin color remained even after stopping the medication, but there are concerns about cancer risk.
277 citations
,
December 2019 in “Frontiers in Immunology” JAK inhibitors show promise for treating skin disorders like alopecia, eczema, and psoriasis.
82 citations
,
March 2016 in “Autoimmunity reviews” Animal models have helped understand hair loss from alopecia areata and find new treatments.
41 citations
,
December 2015 in “JAMA Dermatology” Tofacitinib citrate improved nail dystrophy and pain in patients with alopecia universalis without causing side effects.
22 citations
,
September 2017 in “Skin appendage disorders” Ruxolitinib helped a man regrow his beard after years of hair loss.
20 citations
,
January 2018 in “Expert opinion on emerging drugs” JAK inhibitors may soon be a safe and effective treatment for alopecia areata.
13 citations
,
September 2022 in “Frontiers in immunology” Ifidancitinib, a JAK inhibitor, effectively regrows hair in mice with alopecia by tiring out harmful T cells.
9 citations
,
August 2018 in “JAAD Case Reports” Tofacitinib can temporarily improve hair growth in alopecia universalis, but its effectiveness may decrease over time.
4 citations
,
October 2024 in “Journal of the American Academy of Dermatology” Abrocitinib may help treat alopecia areata effectively with mild side effects.
3 citations
,
September 2025 in “Frontiers in Immunology” JAK inhibitors are effective for treating moderate-to-severe alopecia areata.
November 2023 in “Indian Dermatology Online Journal” Tofacitinib was effective for severe, treatment-resistant hair loss without side effects.
May 2023 in “Journal of managed care & specialty pharmacy” Alopecia areata causes hair loss and life quality issues; current treatments are often unsatisfactory, but new drugs like JAK inhibitors show promise.
January 2023 in “Indian Dermatology Online Journal” No single ideal JAK inhibitor for alopecia areata has been determined; JAK3 inhibitors may be promising with fewer side effects.
November 2023 in “Dermatologica sinica/Zhōnghuá pífūkē yīxué zázhì” Upadacitinib helped regrow hair in a severe alopecia areata patient but stopping treatment caused hair loss to return.
130 citations
,
February 2018 in “Journal of Investigative Dermatology” Tofacitinib may help treat severe hair loss, but more research is needed.
4 citations
,
September 2022 in “Journal of The American Academy of Dermatology” Baricitinib was effective in regrowing hair in patients with different levels of alopecia areata severity.
3 citations
,
February 2024 in “Journal of the American Academy of Dermatology” Topical tofacitinib cream may help treat certain hair loss conditions with fewer risks.
3 citations
,
September 2021 in “Journal of Investigative Dermatology” Baricitinib was more effective than a placebo in regrowing hair in adults with alopecia areata after 36 weeks.
2 citations
,
May 2017 in “Journal of the American Academy of Dermatology” Tofacitinib helped a 19-year-old regrow hair after other treatments failed.
1 citations
,
October 2025 in “Journal of Allergy and Clinical Immunology” A JAK1 variant causes hair loss, skin issues, and thyroid disease, but treatment with a specific inhibitor can help.
1 citations
,
August 2022 in “Journal of Dermatology and Dermatologic Surgery” A patient developed nerve problems as a side effect of a hair loss treatment called tofacitinib.
Upadacitinib and oral minoxidil improved Crohn's disease and hair regrowth in a patient.
April 2025 in “Anais Brasileiros de Dermatologia” Abrocitinib effectively treats severe alopecia areata with significant improvement and no side effects.