I found out about these while looking at some adult material, *cough* porno *cough*, online. I bought & used them, and at first I wasn't too sure about them, but then I really saw the difference. Its been four months now and I'm happy to report some great results. I would say its been about a 3 inch growth in length, and about 1 inch in circumference, which is a lot! This stuff has changed my sex-life permanently. I highly doubted it was possible at first but now I couldn't be happier. If you want real results I would recommend Xantho-5x. Its the only product I've tried but I can't imagine anything else working better than what I have achieved with Xantho-5x.