Bulgarian Tribulus Terrestris 90 caps Pro-Test is an extremely potent tribulus formula that delivers great results. This Bulgarian tribulus contains an astounding 45% protodioscin which will raise your natural level of testosterone to new heights. This superior quality formula will get you the results you desire time after time. Suggested Use: As a dietary supplement, take 3 capsules per day. Take 2 capsules 30-45 minutes before your workout and another capsule 6 hours either before or after depending on when you workout