I have suffered from an enlarged prostate for 4 years. After using the Bioptron System for just 3 weeks, the problem has disappeared. I used it for ten minutes, twice daily. Previously I had to go on lengthy courses of anti-biotics which later did not help at all. Thanks Bioptron and Gary for this wonderful product. Friends of mine have also benefited from treatments JOHANN KIRSTEN, 2019, JOHANNESBURG