Acwell UV Cut Bosong Sun Powder. A reliable & convenient sunscreen powder. Made up of 85% mineral powder, this sun powder will give you a soft finishing effect that will control sebum production. Powder is also clinically tested to block impurities & fine dust. Hypoallergenic tested. How to use: 1. Apply at least 15 minutes before going out into the sun. 2. Reapply every 2 hours if you are outdoors.