Xtend XR results from pills don't last because pills include a substance called nitric oxide. This substance is the actual reason pills work inside first place because it nitric oxide opens your own blood shipwrecks. When the inner ear or surrounding are opened up, more blood get's into your penis. The more blood that get's in the penis, the bigger the penis will wind up being. The only problem is that the nitric oxide does not last very in length.

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