In summer, we all like to enjoy the sun. It boosts our energy and cheers us up after the winter months. It helps the body produce Vitamin D, which plays an essential part in maintaining our bone and muscle mass and it also helps strengthen our immune system. In summer, the sun rays are at their peak and can become very intense. It is therefore important to protect yourself against the harmful effects of the sun, whether you are by the seaside, in the mountains or in the countryside, just going for a walk or while practicing your favorite sport: swimming, climbing, mountain biking, sailing, windsurfing or surfing.