What it does
- Helps reduce the look of persistent uneven tone, including melasma-type discolouration.
- Works well alongside other brightening actives for a combined effect.
How it works
Best known medically as an antifibrinolytic, tranexamic acid is widely documented in topical skincare to interrupt the interaction between keratinocytes and melanocytes and to moderate melanin production triggered by inflammation and UV. This makes it a useful complement to tyrosinase-focused actives.
Use level
- Typical use level
- typically 2–5% topically
Topical cosmetic products commonly use 2–5%. Benefits build gradually with consistent use.
Formulation considerations
- Water-soluble; add to the water phase.
- Stable across a broad pH range and robust to normal processing.
- Combines cleanly with most brightening and hydrating actives.
What it pairs with & what to avoid
Pairs well with
- Niacinamide
- Alpha arbutin
- Vitamin C derivatives
- Hyaluronic acid
Use with care / avoid
- No major cosmetic incompatibilities at typical levels
Regulatory status
Tranexamic acid is listed in the EU CosIng database for cosmetic use. (Oral or injectable use is a medical matter and outside cosmetic scope.)
Common questions
What percentage of tranexamic acid is used in skincare?
Topical cosmetic products typically use 2–5%.
Can tranexamic acid be used with niacinamide or vitamin C?
Yes. It is frequently combined with both to address uneven tone by multiple routes.
How long does tranexamic acid take to work?
Like most tone-evening actives it works gradually; visible change generally needs consistent use over several weeks.