Some surgical methods have the most evidence of effectiveness, whereas others have fairly frequent complications, sometimes severe, including scarring that lead, ultimately, to penis shrinkage or erectile dysfunction. Noninvasive methods have received little scientific study, and most lack scientific evidence of effectiveness, although scientific evidence supports some elongation by prolonged traction. Some quack products may improve penis erection, mistaken by consumers for penis enlargement.
4 - Use a moisturizer on the penis before the exercises and it is preferred not to use soap and shampoo as these materials will lead to redness and irritation of the penis skin . If it stays for a long period of time, in addition to dry skin, and the occurrence of cracks, it is preferred to use the Intensive Care Vaseline instead of the ordinary Vaseline as it can stay on the skin for long period of time without irritating or damaging the skin of the penis.