UVA Star ratings range from 0-5, and indicate the level of protection the sunscreen provides against UVA, compared with the level of protection it provides against UVB (i.e. the ratio between the level of UVA and UVB protection offered by the product). The higher the number of stars, the greater the level of protection against UVA.
It is very important to choose a sunscreen with a high SPF as well as high UVA protection (ideally 4 or 5 stars).
The EU recommends that the UVA protection offered in a sunscreen should be at least one-third of the SPF. Sunscreen products meeting this requirement are eligible to display a UVA logo, with the letters UVA enclosed within a circle.