This Missha All Around Safe Block Aqua Sunscreen for daily use provides skin care by protecting the skin from UV rays and harmful environmental factors. All Around Safe Block Waterproof Sun Essence SPF 50 provides a high level of protection against harmful UVA/UVB rays. Helps prevent sunburn and reduce the risk of skin cancer and premature ageing. To use: For best protection, apply 30 minutes before sun exposure. Reapply every 2-3 hours, and any time your skin is exposed to significant water or sweat.