What should you know about a kojic acid lip scrub?

Kojic acid is used to target excess pigment, while a scrub removes surface flakes through friction. The lips have a delicate barrier and are exposed to saliva, food, weather, and repeated licking. Friction plus an active brightening ingredient can cause dryness, stinging, peeling, or contact dermatitis. Inflammation may leave the lips looking darker, so aggressive exfoliation can work against the reason for using the product.

Do not apply a kojic acid scrub to bleeding, cracked, sunburned, infected, or freshly irritated lips. If you use a lip product containing kojic acid, follow its label, avoid vigorous rubbing, and stop at the first sign of burning. A bland, fragrance-free lip balm or ointment can reduce moisture loss; daytime lip protection with ultraviolet shielding may help limit further darkening. Avoid licking or picking the lips. For persistent discoloration, a clinician can discuss Skin Brightening Treatment rather than repeated scrubbing.

Arrange an assessment for persistent peeling, sores, crusting, pain, swelling, or a colour change that does not settle after stopping the product. Seek urgent help for sudden lip or facial swelling with breathing or swallowing difficulty. A changing dark spot, a non-healing sore, or bleeding without clear trauma also deserves prompt examination.

Ask whether dryness, allergy, repeated irritation, sun exposure, or another condition explains the colour change; whether the product is suitable; and what gentle alternative can protect the lip barrier.