Uneven tanning, or hyperpigmentation, is very common and completely harmless. To help fade these areas, the most crucial step is applying a broad-spectrum sunscreen (SPF 30 or higher) daily. For topical treatments, look for creams containing active ingredients like vitamin C, niacinamide, alpha arbutin, or kojic acid, which gently brighten the skin. Additionally, mild chemical exfoliants like glycolic acid or a gentle over-the-counter retinoid can help speed up skin cell renewal. Always patch-test new products first, and consider consulting a dermatologist for a tailored skincare routine.