Test/ Mast/ Primo Formula is a combination of 3 very effective steroid compounds attached to there a longest of esters. These are Testosterone, Methenolone and Drostanolone. Synthesized for the athlete who is looking for a mixture of the 3 compounds which combined together in synergy with the same esters attached to all compounds help increase strength and lean mass. Along side a strict diet and training plan Test Mast/ Primo Formula will help you attain your physique goals with fewer side affects than using a blend containing Trenbolone.