Ingredient caution: glycolic acid/AHA might cause stinging, dryness, peeling, redness and increased sun sensitivity; alpha arbutin, kojic acid might cause tingling, dryness or redness in sensitive skin; fragrance, essential oils or fragrance allergens might trigger redness, itching or allergic irritation; UV filters might sting around the eyes or irritate very sensitive skin. Do a patch test before applying. First-time users should start 3–4 times a week, avoid using it with retinol or other exfoliating acids in the same routine, and apply sunscreen daily. 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. Patch test near the jawline first, avoid the eye corners, and remove gently at night. Stop use if irritation persists.