I fell for the scam for the 10 day free trial of Nitro Focus N03 Black and Enduros testo. I tried the product the first day didn't feel much of a change or anything during a work out. Woke up the second day I had some pretty bad gas, mu stomach was in bad cramps all day and I could not seem to get off of the toilet. I had to leave work early and couldn't work out. I took the pills as directed for the next two day. I couldn't work out. I couldn't stop using the restroom and I had to leave work early another day. I have been off of the pills for 3 days now. Still going to the restroom about 7-10 times a day and have not been able to work out. These products are scams and if I wanted to just poop my brains out all day I would have just drank Mexican river water. Would have been cheaper.