Sun exposure can lead to the production of free radicals and can cause cell damage, two phenomena responsible for the appearance of wrinkles.
If your skin is well protected all year round, the cell structure will change less rapidly and your skin will remain smooth and supple for longer.
So, combat sun-ageing by protecting your face all year round with an appropriate sun protection factor of at least 30, not only during summertime but also on sunny days in autumn, winter, and spring.