SPF, or “sun protection factor”, measures how well sunscreen shields us from the sun's UVB rays. Think of SPF 15 blocking 93% of UVB rays, SPF 30 blocking 97%, and SPF 50 blocking 98%.

Life can throw us some curveballs, and one of them is the appearance of acne, fine lines, and wrinkles. It's like they pop up just when we least expect them, right? But hey, here's the scoop – it's all a natural part of growing older.