It is indispensable to chose a protection factor which is adapted to your phototype, making sure it offers dual UVA and UVB protection.
Sun care products should consist of:
An association of filters that absorb the sun's UV rays and keep them from penetrating the skin.
Mineral pigments that reflect UV rays and complement the filtering system.
The following sun care guidelines will help protect you from the damage that can lead to skin cancer.
Choose products with an SPF of 15 or higher; water-resistant products with the seal will still be effective up to 40 minutes in the water.
SPF 15 or higher.
Choose sun-blocking clothing with an ultraviolet protection factor (UPF) of at least 30. Or wear tightly woven fabrics in dark colors, which keep out more UV light than lighter shades (a white cotton T-shirt has UPF of 8; jeans, 100+). A hat with a 3-inch-wide brim is best.
Look for glasses that cover the skin around the eyes and block no less than 99% of UVA and UVB rays.
SPF of 15 or higher.
What is SPF?
Sun protection factor. A scale for rating the level of sunburn protection in sunscreen products. The higher the SPF, the more sunburn protection it gives. Sunscreens with an SPF value of 2 through 11 give minimal protection against sunburns. Sunscreens with an SPF of 12 through 29 give moderate protection. Those with an SPF of 30 or higher give high protection against sunburn.