Before I started to use the tren enanthate I shot it every day. Then they started to produce tren enanthate in 250mg/ml and I started to shoot it once a week. I usually do about 500mg/week and still often times shoot one time a week, but actually prefer to do it twice a week now. Hope this helps ya out. By the way, the tren enanthate I use now is by Golden Triangle and IMO I think it is the best on the market. A little on the expensive side, but WELL WORTH THE PRICE!!