I love COSRX for my oily/acne prone skin and am an avid user of the regular pimple patches. But these new patches work miracles, especially on the big, deep painful hormonal blemishes I get along the jawline and neck. Usually they take a week or two to clear up/heal but they literally clear in a day with the AC patch, unbelievable! I am so, so, so happy I could kiss Mr. COSRX himself :))  Love the sizes, love how they adhere, love how they soothe and heal. Will never be without these!