FROGLUBE? is a cutting edge biodegradable lubricant made from ?USDA Certified Food-Grade?. All ingredients are produced in the USA using a proprietary formula. It is a non-toxic substance that dissolves carbon on contact. It has a heavy specific gravity which enables it to ?season? the metal by absorption deep into the pores. Using FROGLUBE? results in a durable dry slick wax-like surface that reduces friction eliminates fouling and destroys rust. FROGLUBE? is safe for plastic urethane nylon and wood. FROGLUBE?will give your weapon many extended years of service.