Biodegradable Non Toxic Lubricant can be used in all water base mud systems and is calcium tolerant. The Lubricant is a proprietary blend of natural oils and surfactants in a non-toxic base. The Lubricant is a free flowing liquid, and is biodegradable and does not fluoresce. The Biodegradable Non Toxic Lubricant will not affect the performance or characteristics of the drilling fluid system.