The COSRX Acne Pimple Master Patch is a topical hydrocolloid dressing designed for the treatment of acne and pimples. The primary active ingredient in these patches is hydrocolloid, a material that forms a gel upon contact with wound exudate. This gel helps to create a moist environment that promotes wound healing and prevents scarring. Hydrocolloid dressings work by absorbing exudate from the wound, which in the case of acne and pimples, includes pus and oil. By absorbing these fluids, the patch helps to reduce inflammation and redness, promoting faster healing of the blemish. Additionally, the moist environment created by the hydrocolloid patch helps to prevent scab formation, which can lead to scarring. The COSRX Acne Pimple Master Patch also contains other ingredients such as cellulose gum and Styrene Isoprene Styrene Block Copolymer. Cellulose gum is a natural polysaccharide that helps to improve the adhesive properties of the patch, ensuring that it stays in place over the affected area. Styrene Isoprene Styrene Block Copolymer is a synthetic rubber-like material that provides cushioning and protection to the blemish, preventing further irritation. The pH of the COSRX Acne Pimple Master Patch is close to neutral, which is optimal for wound healing. The patches have a low viscosity, allowing them to adhere easily to the skin without causing discomfort.