When and How Often To Use Tranexamic Acid Products?

Tranexamic acid is a synthetic derivative of the amino acid lysine, a constituent naturally present in the skin.

In the world of cosmetics, tranexamic acid 

is a recent active ingredient which is the 

subject of a growing number of scientific publications, 

notably on its lightening properties.

Unlike other acids found in skin care products (glycolic acid, lactic acid, salicylic acid, etc.), tranexamic acid does not exfoliate the epidermis, but rather disrupts the excessive production of melanin, which causes hyperpigmentation. In fact, it inhibits UV-induced melanin synthesis by blocking the interaction between keratinocytes (skin cells) and melanocytes (melanin-producing cells). It acts specifically on epidermal melasma (or pregnancy mask),sun spots, post-acne marks (post-inflammatory hyperpigmentation), and dark circles.

Non-photosensitizing, tranexamic acid skin care products can be applied twice a day, morning and evening. On sensitive or irritated skin, use should initially be limited to once a day. If you notice that the skin tolerates the treatment well, you can then switch to twice-daily use. In the event of irritation or discomfort, stop using tranexamic acid immediately.

Although this mild acid is well tolerated by all skin types, we recommend a skin tolerance test to avoid the risk of allergies. To do so, apply a small amount of tranexamic acid to the hollow of the wrist or a small area of the face, and wait 48 hours. If there is no reaction, the product can be applied to the face.

Note: The effects of tranexamic acid products are progressive. A reduction in the appearance of hyperpigmentation is generally visible after 8 to 12 weeks of topical  tranexamic acid application.