Stay away from products claiming to increase penis size. Since wanting a larger penis is such a common desire, there are a lot of scammers out there making promises they can't back up. There is no magic potion that will make your penis grow. It's completely genetic. Don't waste your money or jeopardize your health by falling prey to a company that promises to permanently give you a bigger penis with its product.
However, after more than a century of generally dubious and sometimes lunatic penis enlargement attempts, there's still not much you can do. Sure, there are lots and lots of supposed options out there -- penis pills, creams, brutal stretching exercises, horrific-looking devices, and penis surgery. Almost none of it works. The few approaches that can work often have modest benefits and serious side effects. How serious? In some cases, erectile dysfunction-serious.