Serious, its biological tissue made of a vascular system and tissue, nothing, and I mean nothing is going to change that short of the filaria worm from a mosquito bite causing elephantiasis. Any change will leave you impotent if it was possible. Like most real changes in the human body, it would require a surgical procedure. The commercials rely on the truth that there is a sucker born every minute as PT barnum said.
Repetition cancels reason, simple psychological truth, that is why the sheer abundance of these scams generate business