I took a deca cycle of 300ml wk for 10 weeks, Its was my first cycle between a few years of and I had great results. I put on about 15pds and kept 10. Depends on diet, training, cycle history. Ect. I had zero side effects from that cycle. No acne, the only problems was I blew up like a blow fish. And don't expect to see a rapid increase in streaght & size until about week 6