Penis Extenders FAQ

Did you know that the SizeGenetics program has no side effects? The penis extender has passed standardized testing and has been worn by thousands of customers who have never experienced any side effects.

Jerry K

Dr. Jerry K is the founder and CEO of, part of a team of more than 30 experts. Dr. Jerry K is not a medical doctor but holds a degree of Doctor of Psychology; he specializes in family medicine and sexual health products. During the last ten years Dr. Jerry K has authored a lot of health blogs and a number of books on nutrition and sexual health.