I use a product called the bathmate x30 and intermitant jelqing, used it for about 6 months straight, I have gained girth .25 of an inch. Gained about half an inch in length. If you keep on your bathmate regimen you will see an increase in flacid size, if you stop it goes back to the slightly improved permanent size. It’s a little bit of an annoyance to draw baths on the regular but if you are commited it’s no issue and you will get gains.
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.
Herbal remedies, Kegels (pelvic floor exercises — learn more here), and exercises have all been mentioned as potential ways to make your penis bigger. However, we’ve searched and searched for medical evidence that these techniques will work to grow your penis, but there’s simply zero, zilch, nada, no evidence. You may find lots of unverified anecdotes, which come from a sample size of one, but they simply cannot be trusted. After all, no one on the internet knows you’re a dog (or liar). We recommend that you avoid these techniques.