July 2025 in “The Journal of Dermatology” Ritlecitinib has common side effects like headache and acne, and unexpected ones like diabetes and thyroid issues.
February 2024 in “Journal of the European Academy of Dermatology and Venereology” Baricitinib is effective and safe for long-term use in severe alopecia areata, improving hair regrowth and quality of life with few side effects.
December 2025 in “International Journal of Innovative Technologies in Social Science” Ritlecitinib is generally safe for long-term use, with mostly mild side effects.
63 citations
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April 2018 in “Journal of the American Academy of Dermatology” Topical JAK inhibitors may help treat some skin conditions but need more research.
4 citations
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May 2025 in “Frontiers in Immunology” JAK inhibitors effectively and safely treat alopecia areata with few serious side effects.