They say 100% guaranteed just not after 30 days. Your stuck with the 600 tablets if you cant decide if the pills are helping you or not. Not to mention $55. Or more. Dont bother with customer service they are all robotic and have the same reply. Almost like a script. My complaint e mail was answered by customer service/amateur magician/ sky diver/health enthusiast, vitamin shoppee representative. That was how the email was signed. The truth.
I will never shop there again.