CLINICALLY PROVEN
The result of an unbiased, clinical test concluded that participants experienced an average enlargement of as much as 28%, after using the Jes-Extender. Some experienced a penis enlargement of more than 40%. The study was presented at the 1st International Interdisciplinary Symposium on Genitourinary Reconstructive Surgery.
Source: Tractive Elongation of the Penis by Means of Stretching.Material and Methods
| Number of patients | 18 patients ranging from 23-47 years |
| Inclusion | Normal erectile capacity and no penile surgery |
| Exclusion | Chronically diseased |
| Traction force | 0- 2 weeks - 900-1000 g 2-24 weeks - 1000-1200 g |
| Treatment period | 12 hours daily, 7 days a week, 8 to 24 weeks |
| Follow up | Every 2 weeks |

CONCLUSIONS
The average result of Jes-Extender treatment
- Increase in erect length of 2,8 cm (1.1 Inch) after 1100 hours at 1200 g traction force. The corresponding flaccid increase is 1,9 cm or 0.75 inch.
- Average lengthening per week was 1,9 mm
- No complications

