I sometimes tend to get hormonal acne about once a month, but after I started using only Pyunkang Yul skincare products that has happened a lot less often now. Whenever I do get some acne now I like to slap on one of these patches for a little while and it usually helps a lot! It also makes the redness less noticeable while you're wearing them, so I've had them on while doing grocery shopping and whatnot.
I feel like I need to have these available at all times now, just in case.