sorry fellas - testex is test prop - unless it is Prolongatum (Cyp) frankly - it is much better to use a single ester so as to be able to gage the timing of its release - thus cyp or prop is better than Sust since it is hard to accurately run a precise cycle - Sust is usually used by newer users and is over priced IMO - testex is going to require EOD injections or 2x per week if Cyp - Sust should be done 2x per week at bare minimum and is best EOD. Testex is a awesome quality product tho, so I hear.