The COSRX AC Collection Acne Patch is an oval-shaped, highly adhesive hydrocolloid patch that helps treat while reducing the appearance of acne. The border of each patch is purposely tapered to ensure that it will strongly and easily adhere onto any curved areas of the face, such as the jawline, hairline, and even on your body. Each patch is designed to not only help acne disappear without a scar, but also calm and soothe with centella asiatica.To use: Cleanse the area to be treated. Remove the film and stick on the target area. As the patch turns white, replace it with new one.Please note: For external use only. Keep unused covers in the paper pouch. Store in a cool place, avoid sunlight exposure.