My source is now carrying primo and I'm interested in getting lean muscle mass. I'm 24 years old, 5'10", and around 80 kg. I was wondering, cause he has a choice between using 100 mg/mL or 200 mg/mL. Is there really any difference between the two? It seems like it would make more sense to just get 200 mg/mL cause I wanna run 600 mg a week. Do you think that's a good dosage?









