This advanced acne treatment formula is the solution to your pimple problems.. All skin types that want to banish blemishes. Pimples don’t stand a chance against this effective spot serum. This treatment uses the power of colloidal sulfur to kill acne-causing bacteria, while lactic acid increases cell turnover to speed healing. Unlike most spot treatments, this serum won’t over dry, making it the perfect recipe for a pimple-free complexion.