When creatine supplements were in their infancy and not widely available, we did sell a creatine product. We discontinued it several years ago for a couple of primary reasons, one of which was the ever-increasing number of locations, such as health food and drug stores, online bodybuilding-specific stores, and even supermarkets, where creatine supplements could be found. Additionally, while creatine supplementation certainly has its place (primarily for off-season weight training workouts), we believe there are far better endurance-specific supplements available.
Creatine monohydrate (the most common form of creatine sold) is converted to creatine phosphate in the body. Phosphate molecules are then donated to replenish the short-term ATP-CP (adenosine triphosphate and creatine phosphate) energy system, which is of benefit primarily-to-solely for strength athletes (e.g., weight lifters, bodybuilders) or athletes engaged in short-duration, high-intensity bouts of exercise or races (e.g., track sprinters).
Race Day Boost and Perpetuem contain sodium phosphate, which we believe to be a much more appropriate creatine-like supplement for endurance athletes. This is because sodium phosphate not only replenishes/restores the short-term ATP-CP energy system, it also enhances the medium-term anaerobic/lactic acid energy system and the longer-term aerobic/oxygen energy system.