COSRX AC Collection Acne Patch is a specialized hydrocolloid patch designed for intensive acne care. It comes in three different sizes with tapered edges for optimal coverage and adherence. The package contains 26 patches total, offering targeted treatment for various acne spots. The patches come in three specific sizes: Small (9x13mm, 9 patches), Medium (11x16mm, 9 patches), and Large (15x23mm, 8 patches). The patches feature an oval shape design with tapered edges for better adherence and coverage of acne spots. Being a personal hygiene product, it should be stored in a clean, dry place and used on cleansed skin for best results.