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Ran primo 400/wk for 16 weeks. honestly at that dose the results were underwhelming compared to the price i paid. gained maybe 6-7lbs of lean mass. yes it was quality but for the cost i could have run other compounds and gotten more. everyone says you need 600+ for real results and i believe that now. next time im either going 600+ or not bothering. its a mild compound that needs high doses.