Solvent Free: It's not rocket science, but it is science: hand cleaners are either solvent-based or solvent-free. Solvents dissolve a lot of hard-to-clean messes, but they also take a toll on exposed skin. Frequent hand washing with harsh, solvent-based cleaners can lead to really dry and painful cracked skin. Instead, Full Bore uses a combination of detergents and water for an effective, solvent-free formulation! Unchanged Formula: Our heavy-duty hand cleaner formulation has been a staple for decades (Formerly Tough Scrub), ensuring consistent performance for automotive and industrial mechanics. Gritty Pumice Formulation: Features a powerful pumice grit that effectively removes stubborn dirt, grease, and grime without harsh solvents—just soap and grit for a deep clean. Solvent-Free: No harsh chemicals, just a combination of soap and grit to ensure your hands are thoroughly cleaned without damaging your skin. Skin-Friendly: Moisturizers are included to prevent cracked skin, allowing you to live the Full Bore lifestyle without compromising your skin’s health. Eco-Conscious: Made with biodegradable ingredients, this hand cleaner is safe for the environment while delivering exceptional cleaning power.