Download Safety Data Sheet   The basics The Lava Bar is the original heavy-duty hand cleaner. The benefits Lava's name was derived from one of its key ingredients-pumice. The uses Since 1893, do-it-yourselfers, coal miners, and oil rig workers have depended on the power of pumice in Lava to cut through even the toughest grease and grime The bottom line A by-product of volcanic activity, pumice is used in combination with other cleaning and moisturizing agents to clean and soften even the dirtiest of hands.