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Tranexamic Acid (TXA)

By Nur → Last verified 9/26/2026

What it is

Tranexamic acid, often shortened to TXA, is a brightening active used in Korean skincare at clinically-relevant concentrations, typically paired with niacinamide rather than sold as a standalone active.

What the evidence says

TXA is used specifically for stubborn hyperpigmentation, a more targeted goal than general brightening. Anua's Niacinamide 10% + TXA 4% Serum discloses both concentrations directly, a real, clinically-dosed pairing rather than a trace addition for label appeal.

Who it's for

Stubborn, specific pigmentation concerns rather than general dullness, where a more targeted formula matters more than a broad daily brightener.

Worth knowing

No specific group needs to avoid topical TXA, though as with any targeted active, it's not a replacement for gentler daily brightening if your concern is general tone evenness rather than specific dark spots.

Where you'll find it

Products in our catalog that list Tranexamic Acid (TXA) as a key ingredient.

Frequently asked

What is TXA used for in skincare?

Tranexamic acid is used specifically for stubborn hyperpigmentation, a more targeted goal than general daily brightening.

Is TXA usually sold alone or paired with other actives?

Typically paired, Anua's serum combines a disclosed 4% TXA with a clinically-concentrated 10% niacinamide rather than selling TXA as a standalone active.

Do TXA products disclose their concentration?

Not always, but Anua's Niacinamide 10% + TXA 4% Serum does disclose both concentrations directly, a real, clinically-dosed formula rather than a trace addition.