Microcrystal patches, sometimes called microneedle patches, are designed for a different kind of spot than your standard hydrocolloid. They're made for those early-stage, under-the-skin bumps that haven't come to a head yet, where a flat hydrocolloid can't really do much because there's no fluid at the surface to absorb. Our Miracle Patch Microcrystal Spot Cover uses self-dissolving microcrystals with ingredients like succinic acid, tea tree leaf oil, hyaluronic acid, and madecassoside to dissolve and release ingredients onto the skin. They're best for those deep, tender bumps you can feel forming. They're not made for cystic acne, which sits much deeper and really calls for a dermatologist.