1 gram per week. I do this till I start breaking out then, I back off to around 600 mg every 10 to 14 days. Oil based test will stay active in the system longer than a suspension will. Receptor sites can only take so much gear at a time, so if you use too much you will start noticing lots of acne. When this happens, back off on the doses a little...this seems to work well for me anyway.