What should you know about kojic acid melanin?

Melanin is the pigment that contributes to skin, hair, and eye colour and helps absorb ultraviolet energy. Darkening can happen when pigment-producing cells become more active after sun exposure, hormonal influences, acne, injury, or inflammation. Kojic acid is used topically because it can interfere with an enzyme involved in making melanin.

That action does not erase a person’s natural skin tone or treat every cause of pigmentation. A mark can remain visible while the skin renews, and new pigment can develop when the trigger continues. A burning or peeling reaction is not evidence that the ingredient is working better; inflammation may leave a darker mark.

Apply only as directed to clean, dry skin and keep it away from eyelids, broken skin, and mucous membranes. Introduce one new pigment product at a time so you can identify the cause of a reaction. Pair treatment with a gentle cleanser, moisturiser, and regular broad-spectrum sunscreen because ultraviolet and visible light can stimulate further pigment.

If your goal is a broader tone change, seek a consultation rather than increasing application or combining multiple agents. A clinician can explain the ingredient in more detail through [Kojic Acid](/materials/kojic-acid/) and compare options under [Skin Brightening Treatment](/treatments/aesthetic-procedures/skin-brightening-treatment/).

Arrange an assessment for a new or changing pigmented spot, uneven pigment with pain or bleeding, or a patch that becomes thick, scaly, or persistently inflamed. Stop the product for facial swelling, hives, blistering, or severe burning. Pigmentation after irritation may need a different plan from ordinary cosmetic brightening.

Ask what is driving the pigment, whether kojic acid suits your skin type and current medicines, how to combine it with sunscreen, and what signs mean you should stop rather than continue.