Advanced Gel Hand Sanitizer, Bag-in-Box, 800 mL Refill, Unscented | PURELL Advanced Hand Sanitizer is proven to kill 99.99 percent of most common germs that may cause illness. While it’s tough on germs, the formulation is mild on skin. With a blend of four moisturizers, hands feel soft, even with frequent use. It’s free of parabens, phthalates, and preservatives, which means it doesn’t dry out or irritate skin.