Many people believe that the heat of the sun can improve acne-prone skin by drying out excess oil and reducing pimples. However, contrary to this common belief, the sun is far from a friend to oily or acne-prone skin.
During sun exposure, UV rays may temporarily dry out blemishes, making the skin look clearer at first. But this effect doesn’t last. Shortly afterwards, the skin produces excess sebum in response to the dryness. This overproduction, combined with a thickened skin barrier, clogs pores and traps bacteria beneath the surface. A few days later, this often results in a flare-up of spots and blackheads - a reaction known as the rebound effect.
Because the rebound effect is delayed, many people underestimate the role of the sun in triggering acne breakouts. Dermatologists regularly warn that unprotected sun exposure increases the risk of flare-ups, especially in summer. To help prevent outbreaks, it’s important to use a sunscreen specifically formulated for oily or acne-prone skin.
In addition, sun exposure can make acne scars and dark spots worse, as UV rays are a leading cause of hyperpigmentation.
If you’re using acne medication or topical treatments, your skin may be more sensitive and prone to burning. In this case, daily sun protection is essential, as UV rays can irritate sensitised skin and provoke new pimples. Remember: you’re exposed to UV rays all year round, not just when the weather is sunny.