The Pro Hygiene Collection Hand Sanitizing Gel safely & effectively kills 99.99% of bacteria within 60 seconds & cleans hands without the need for soap, water or rinsing. Did you know 80% of germs are transmitted by hands? Frequently asked questions: Will the Hand Santizer Gel clean & sanitize my hands? The hand sanitizer is a no-rinse gel that is effective against a variety of organisms & kills 99.99% of known bacteria, but it is not a cleaner, so it will sanitize but not remove grease or dirt off hands. Will The Hand Sanitizing Gel affect my jewellery? No, The Hand Sanitizer Gel will not affect gold or silver, but it may affect costume jewellery, so remove any such jewellery before using. Is there any alcohol left on the hands? Once your hands are dry, all the alcohol has evaporated, so there is no alcohol left on the skin.