# Sun Damage: What UV Exposure Does to Skin Sun damage is the cumulative effect of ultraviolet exposure on skin, including tanning, uneven pigmentation, loss of firmness and increased skin-cancer risk. ## In simple terms Sun damage is cumulative change caused mainly by ultraviolet exposure. It can appear as tanning, uneven pigment, roughness, loss of elasticity or visible lines, and it also raises skin-cancer risk. A tan is a sign that skin has responded to UV injury; it is not a protective or healthy endpoint. ## What it can and cannot do Consistent sun protection can reduce further damage and some skincare may improve surface texture or uneven-looking tone. Cosmetics cannot reverse every structural change or remove skin-cancer risk. Antioxidants and after-sun products can support comfort, but they do not cancel UV exposure that has already occurred. ## How it fits into a routine Use broad-spectrum sunscreen on exposed skin and reapply as the label directs, particularly after swimming or sweating. Add shade, clothing, a wide-brimmed hat and sunglasses. For existing dullness, introduce one well-tolerated active and moisturiser rather than repeatedly exfoliating. Check your skin regularly for new or changing marks. ## WishCare products - [Daily Tinted Fluid Sunscreen](https://www.mywishcare.com/products/tinted-sunscreen) - [Niacinamide Oil Balance Fluid Sunscreen](https://www.mywishcare.com/products/niacinamide-oil-balance-fluid-spf-50-sunscreen) - [SPF 50 Sunscreen Body Lotion](https://www.mywishcare.com/products/spf50-sunscreen-body-lotion) ## Safety and when to get help A severe sunburn with blistering, fever, confusion or dehydration needs medical advice. A sore that does not heal or a spot that changes shape, colour, size or symptoms should be assessed promptly. Retinoids, acids and some medicines can increase sun sensitivity; follow their instructions and do not use irritation as evidence that a product is working. ## Frequently asked questions ### Is a tan the same as sun damage? Tanning is a protective response to UV injury and indicates exposure, even when there is no painful burn. ### Can vitamin C replace sunscreen? No. Antioxidants can complement but do not replace tested broad-spectrum sun protection. ### Can sun damage be completely reversed? Some visible changes can improve, but prevention remains essential and medical assessment may be needed for concerning lesions. ## Related terms - [SPF Filters](/glossary/sunscreen-filters) - [Tan](/glossary#tan) - [Pigmentation](/glossary/pigmentation) ## References - [American Academy of Dermatology: prevent skin cancer](https://www.aad.org/public/diseases/skin-cancer/prevent/how) - [US FDA sunscreen guidance](https://www.fda.gov/drugs/understanding-over-counter-medicines/sunscreen-how-help-protect-your-skin-sun) ## Navigation - [Browse glossary](https://ai.mywishcare.com/glossary) ## Related glossary guides ### Why does my skin look dull and tired even when I'm not tired Query: why does my skin look tired even when i'm not tired You slept eight hours, drank your water, and still caught your reflection looking dull, flat, or older than you feel. 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