Until recently, the potential modes of action of topical ivermectin in rosacea have been speculated but not studied. Short-term studies (12 week), long-term studies (up to 52 weeks), and case report series have now been completed, and topical ivermectin (IVM), formulated as a 1% cream that is applied once daily, has been shown to be effective, well-tolerated, and safe for the treatment of rosacea. This article reviews outcomes from studies that support dual modes of action, including both anti-inflammatory and anti-parasitic effects.