A class of drugs that calm the immune signalling behind alopecia areata. Oral JAK inhibitors (e.g. baricitinib, ritlecitinib, deuruxolitinib) are now FDA-approved for severe alopecia areata and can regrow hair — but they treat the autoimmune type, not ordinary pattern baldness, and need specialist care.
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Not medical advice. General education only; it does not replace diagnosis or treatment by a licensed professional. Consult a board-certified dermatologist before starting, stopping or changing any treatment.
⚠️ When to see a doctor — don’t self-treat
- Sudden patchy or circular bald spots
- Redness, scaling, pus, pain or itch (possible scarring alopecia — treat urgently)
- Broken hairs or rapid loss
- Loss with body-wide signs (weight loss, fatigue, cycle changes, acne, extra hair)
- Loss right after a new medication
- Any hair loss in a child