Tranexamic acid, originally used to stop bleeding in surgery, has proven effective in treating several skin conditions when applied topically, injected, or taken orally. It works by reducing inflammation, blocking new blood vessel formation, and preventing melanin production—making it useful for melasma, dark spots after acne, rosacea, and post-inflammatory hyperpigmentation.

This was a review article that compiled existing evidence on tranexamic acid's use across different skin conditions and delivery methods (topical, oral, and injection).

Funding not disclosed in abstract