Ingredient caution: vitamin C/ascorbic derivatives might cause tingling, redness or irritation in sensitive skin; alpha arbutin, kojic acid, licorice extract, tranexamic acid might cause tingling, dryness or redness in sensitive skin; fragrance, essential oils or fragrance allergens might trigger redness, itching or allergic irritation; preservatives such as phenoxyethanol/benzyl alcohol might sting very sensitive or compromised skin. Do a patch test before applying. First-time users should start 3–4 times a week and avoid layering with strong exfoliating acids if the skin stings. First-time users should start 3–4 times a week and pair with sunscreen, because pigmentation care works best with UV protection. Avoid this product if you have fragrance allergy, eczema-prone skin or a damaged barrier. Do not apply on broken, freshly waxed or irritated skin. Stop use if irritation persists.