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Primo at 600mg/week with TRT test for 20 weeks. This is the Rolls Royce of steroids for a reason. The gains were slow but incredibly high quality - lean, keepable tissue with zero water retention. No estrogen issues, no progestin issues, hair was fine. The only downside is the cost - primo is expensive and you need high doses for real results. But if you can afford it, its the safest injectable for quality gains hands down.