I purchased 3 bottles of Redkat (Biotest) a couple of weeks ago. There are 72 capsules in a bottle ($20 each). A fellow member said that the extract ratio is 200:1. If this is true, damn that a good price. You take 4 pills a day and take two days off during the week to overavoid overstimulation. After I finished my PCT, I started taking the Redkat in hopes of keeping my natural test levels high. I used to take triubulus for this but the gurus frown upon trib because of its lack of scientific studies. The bottle said that it will take up to a month to achieve full effects. I have been on for a little over a week and my nuts are swole. So far so good. It appears to be stronger than trib. When my bottles run out, I'm going to take Bryan's advice and do a 4 week cycle with Liquidex. This is supposed to double your test levels. Does anyone know how much tongkat ali increases your test levels by (double or less)? I'm assuming it will be less than double. Thanks, bros!