Guide · Ingredient × Concern
TXA for melasma.
TXA for melasma — what the science actually says, what concentration is therapeutic, and which products in the Uwazia catalog pair the two. Evidence grade: strong.
What the evidence says
Strong evidence.
Multiple well-controlled clinical studies converge on the same conclusion.
That's our honest grade — not a marketing claim.
The science
What's actually happening.
How txa works
Inhibits plasmin activity, downregulating melanocyte stimulation triggered by UV and inflammation. Effective on stubborn pigmentation.
Full ingredient pageWhat melasma is
Acquired hyperpigmentation, typically symmetrical on cheeks, forehead, upper lip. Hormonally and UV-driven. Often persistent and recurrent.
Full concern pageWhat to look for
Reading a label for txa.
Therapeutic range
2–5%
Concentrations supported by clinical literature. Below this range, the active is functionally cosmetic.
Sun exposure
Not photosensitizing.
Safe under daily SPF. UV protection remains essential for any pigmentation work.
Watch for
- Generally well-tolerated
- Mild irritation possible
Related guides
Adjacent pairings worth reading.
Other ingredients for melasma
Other concerns txa addresses