The PA grading system in sunscreens indicates the level of protection from the UVA rays. So, the presence of more than three ‘+’ signs signifies that sunscreen provides the best protection against UVA rays. The derma Co SPF 50 1% Hyaluronic Sunscreen Aqua Gel with PA+ formulated with the effective combination of Hyaluronic Acid and Vitamin E protects from sun damage, while also reducing fine lines, wrinkles and making your skin soft and supple.