Absolutely not. In fact this one of the safest methods of penis enlargement. Because you are using a predetermined amount of traction you eliminate the possibility of doing yourself an injury. Penis extenders are the safest method of a penis enlargement program.
How often should I exercise?
Exercise times of course vary from person to person but the sizegenetics program comes complete with a DVD and online program explaining exactly how to tailor the different exercises to suit your genetic makeup.
Are the results permanent?
Yes - the results are permanent. Using an extender you increase the capacity of the penis to hold blood and this is what makes the size gain