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However, once the 28-day period has passed, the vials containing the solution must be discarded

Topical antibiotics: Topical antibiotics such as clindamycin or erythromycin treat acne by reducing the acne-causing bacteria ( Cutibacterium acnes , formerly Propionibacterium acnes )

Journal of the American Academy of Dermatology , 59(3), AB122

Interestingly, this serums key ingredient list is the longest of our top picks, and it includes: Copper tripeptide-1 (GHK-Cu) Lactococcus ferment lysate Matrixyl 3000 (branded complex of palmitoyl tripeptide-1 and palmitoyl tetrapeptide-7) Matrixyl synthe'6 (branded complex containing palmitoyl tripeptide-38) Argirelox (branded complex of acetyl hexapeptide-8 and pentapeptide-18) Syn-Ake (branded dipeptide diaminobutyroyl benzylamide diacetate) Acetylarginyltryptophyl diphenylglycine Sodium hyaluronate Below, we break down the research behind some of these ingredients