Bigfun is recommended as a remedy for erection problems. Normally, a man's penile cavity fills with blood when he experiences sexual stimulation. Not enough blood will flow to produce a larger erection when erectile dysfunction develops. Bigfun causes a man to feel more sexually excited by relaxing his penile blood vessels. This sort of promotes blood flow to the penis, making it bigger. After intercourse, the erection disappears, as it should under normal circumstances. Be aware that Bigfun only works when a man is intimately excited; it is not just an aphrodisiac or hormone.