The best sunscreen is not defined only by brand popularity. It should provide broad-spectrum UVA/UVB protection, match the skin type, contain reliable ingredients, and be comfortable enough for daily use. Dermatologically tested SPF 30 or SPF 50 products usually provide more effective protection. Lightweight fluid formulas may suit oily skin, while moisturizing creams are often better for dry skin. The best sunscreen is the one your skin tolerates well and that you can use consistently every day.