96% of UVA & UVB rays are being blocked when using Rosalique. The 5* Boots rated SPF50 provides premium protection for daily sun exposure. Skin damaging UVA and UVB rays are blocked which reduces repeated skin irritation and damage that can cause red skin. Rosalique 3 in 1 Anti-Redness Miracle Formula prevents long term damage and skin redness whilst actively treating symptoms.
Many forms of sun protection carry a UVA star rating on the bottle - Boots developed this rating system in 1992, and it was Europe’s first measurement system for UVA protection. Ranging from 0 to 5, this rating indicates the percentage of UVA radiation that’s absorbed by that particular sun protection, compared to UVB. The higher the star rating, the better the protection against UVA rays. (Source: Boots)