COSRX AC Collection Acne Patch is a hydrocolloid-based spot treatment designed for targeted acne care. These transparent patches create a protective barrier over blemishes while absorbing excess fluid and impurities, promoting faster healing of acne spots overnight. The patches come in multiple sizes to accommodate different types of blemishes and are made with medical-grade hydrocolloid material. They are hypoallergenic, dermatologist tested, and free from common irritants. The product comes in a resealable, sterilized packaging for maintaining hygiene. For best results, apply on clean, dry skin and select a patch slightly larger than the affected area.