Researched by Helena DeMaria-Williams
Formula IngredientSkin Brightening AgentTranexamic Acid
INCI: Tranexamic Acid
Tranexamic acid is a synthetic amino acid derivative that works by inhibiting plasminogen activator, thereby reducing the production of arachidonic acid and UV-induced pigmentation signals that stimulate melanin synthesis. Originally developed as a haemostatic drug, it has been extensively studied as a topical brightening ingredient effective against melasma and other forms of hyperpigmentation. It works through a different mechanism than many other brighteners, making it a useful option when combined with or alternating with ingredients like niacinamide or kojic acid.
Category
Skin Brightening Agent
Irritation Risk
Low
Skin Types
all skin types, sensitive skin, hyperpigmentation, melasma, post-inflammatory erythema, acne-prone skin
What does this do in a formula?
hyperpigmentation reduction, melasma treatment, brightening, evening skin tone, fading dark spots, reducing post-inflammatory erythema
Is Tranexamic Acid safe? Key considerations
Can Tranexamic Acid cause irritation?
Low RiskTranexamic acid is generally very well tolerated across skin types, including sensitive skin. It does not cause the stinging or peeling associated with AHAs and is considered one of the gentler brightening actives. No EU Annex II or III restrictions apply to its use in cosmetics at typical concentrations.
Does Tranexamic Acid increase sun sensitivity?
No RiskUnlike AHAs and retinoids, tranexamic acid does not increase photosensitivity. Daily SPF is still recommended as standard practice when treating hyperpigmentation, as UV exposure is a primary driver of pigmentation, but tranexamic acid itself does not sensitise skin to the sun.
Is Tranexamic Acid safe during pregnancy?
CautionTopical tranexamic acid at cosmetic concentrations is not considered high risk, but data specific to topical use in pregnancy is limited. As a medicine, the NHS notes it is not routinely recommended in pregnancy and should only be used if needed under medical supervision. Consult a healthcare provider before using tranexamic acid topically during pregnancy as a precaution.
How does Tranexamic Acid work?
Tranexamic acid is a synthetic amino acid derivative that works by inhibiting plasminogen activator, thereby reducing the production of arachidonic acid and UV-induced pigmentation signals that stimulate melanin synthesis. Originally developed as a haemostatic drug, it has been extensively studied as a topical brightening ingredient effective against melasma and other forms of hyperpigmentation. It works through a different mechanism than many other brighteners, making it a useful option when combined with or alternating with ingredients like niacinamide or kojic acid.
Individuals with known allergy to tranexamic acid should review the considerations above before use.
Which products contain Tranexamic Acid?
Shop products that contain Tranexamic Acid
