Primo is an enanthate ester, so you're looking at 3-4 weeks, depending on the individual. It is one of my favorite steroids, but I would avoid underground preparations of it, as it is widely counterfeited and substituted with other compounds. I would stick to the bayer-shering amps if I were you.
As far as dosage is concerned 600mg/wk is the very minimum I would run. If you got the money I would go with 800mg/wk, but 600mg should yield decent results. If your BF% is low enough, it will make you hard and vascular like nothing else.





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