Dr. Herma Pimple Control Patch Large Size 10 Patches is designed to treat pimples by absorbing excess sebum and eliminating blemishes. First, hydrocolloid, a technology that absorbs sebum and promotes healing without drying out the skin. Next, tea tree essential oil, known for its natural antibacterial and anti-inflammatory properties. Finally, salicylic acid, a leading ingredient in the treatment of acne, acts anti-inflammatory and keratolytic.Format: large.