Sunscreen After Laser Treatment: When and What to Use Sunscreen after laser treatment is the single most important part of aftercare. Laser treatments work by creating controlled damage in the skin, and the treated area is raw, sensitive, and extremely vulnerable to ultraviolet light for weeks afterward. Sun exposure during healing can cause dark spots, uneven pigmentation, prolonged redness, and in severe cases scarring. Clinics are direct about this: if you cannot commit to strict sun protection, postpone the laser appointment. For the first one to two weeks, stay out of direct sun as much as possible and keep the treated area covered with clothing or a wide-brimmed hat. When you must go outside, use a mineral sunscreen with zinc oxide or titanium dioxide, SPF 30 or higher, because mineral formulas are gentler on healing skin. Apply it gently without rubbing the treated area hard, and reapply every two hours outdoors. Different lasers need different aftercare, so ask your clinic whether you had an ablative or non-ablative treatment and how long to avoid sun exposure entirely. For the first few days, a gentle, fragrance-free moisturiser under your mineral sunscreen helps the skin barrier recover faster. If you notice blistering, increasing pain, or signs of infection, contact your clinic promptly rather than covering the area with makeup or heavy creams. Follow your clinic’s timeline before restarting chemical sunscreen, exfoliants, or retinol, usually at least one to two weeks. Avoid tanning beds and spray tans until healing is complete. The results of a laser treatment take weeks to appear, and unprotected sun exposure during that window can undo the benefit entirely. [post-laser sunscreen guidance](https://sunscreenscorner.com/) Source: https://sunscreenscorner.com/