Skip to content
Brightening amino-acid derivative

Tranexamic Acid

INCI: Tranexamic Acid·Studied at 2–5%·Moderate evidence

A synthetic amino-acid derivative studied for the appearance of stubborn discoloration and a more even tone, often paired with niacinamide or acids because it works by a different route. It is formulated topically at low leave-on percentages and has become a common pick for people looking for a gentler alternative to harsher brighteners. Because its proposed pathway does not target the pigment-making enzyme directly, it is frequently layered with tyrosinase-inhibiting actives like alpha arbutin or vitamin C rather than relied on alone.

Studied for

  • ·The appearance of an even tone
  • ·The look of reduced dark patches and post-blemish marks
  • ·The appearance of softened redness-linked discoloration
  • ·The look of a brighter, more uniform complexion with continued use

How it’s thought to work

Studied for association with the appearance of less visible uneven pigment through a different pathway than acids or vitamin C, which is why it is commonly stacked with them. Rather than blocking the enzyme that builds melanin, it is thought to interrupt an inflammation-linked signal between skin cells that can trigger extra pigment after UV exposure, sun damage or blemishes. That distinct mechanism is the basis for combining it with tyrosinase-inhibiting brighteners for a broader-looking result.

Landmark study· studied at 3%

In a 12 week trial, 3% topical tranexamic acid was linked with a more even looking skin tone, similar to a standard comparison cream.

Topical tranexamic acid as a promising treatment for melasma. Journal of Research in Medical Sciences, 2014.

View on PubMed (PMID 25422661) ↗

Questions

How fast does tranexamic acid work?
Slowly. It is a patient active for the appearance of uneven tone, so most people judge it over months rather than weeks, ideally alongside daily sunscreen.
Can I use tranexamic acid with vitamin C or niacinamide?
Yes. It works through a different pathway than either, so it is commonly layered with both for a more well-rounded approach to the look of uneven tone.
Is tranexamic acid gentle enough for sensitive skin?
Generally, yes. It does not exfoliate and is usually well tolerated, which is part of why it has become a popular pick for people who find stronger brighteners or acids irritating.

Serums we’ve scored with Tranexamic Acid

References