Peter Greven Active Pearls are truly the most innovative method of removing heavy dirt, including grease, oil, metallic dust, graphite and soot from your hands. Made of hydrogenated castor oil, Active Pearl's lipophilic surface structure allows the soft and smooth wax pearls to bind to greasy dirt particles without affecting the health of your skin. Recommended for frequent hand washings, this heavy-duty industrial hand cleaner is free of sharp-edged scrubbing agents, soap, solvents and perfumes. With carefully tested and proven dermatological skin compatibility. Greven Active Pearls is an excellent choice for clean and healthy working hands.