Gentamicin (Garamycin) is an antibiotic in the Aminoglycoside family. Topical Gentamicin is used to treat certain skin infections that are caused by gram-negative bacteria.

Topical Gentamicin is rarely used as an acne treatment. This is largely due to the fact that the acne-causing P. acnes bacterium is naturally resistant to most Aminoglycoside antibiotics, including Gentamicin.