Creatine and vitamin b2 in formula! no activator required. Formulated for individuals with larger body mass or high toxin levels. 37.5% more per serving. Effective for up to 5 hours. Satisfaction guaranteed or your money back. Proven effective. Tastes great. Creatine and vitamin b2. Fast - safe - effective. country of origin : united states size : 20 fz pack of : 1 selling unit : each