SAYVILEN active ingredient is an extract of saiga antelope antler made according to ancient Tibetan recipe – SAITORIN. One capsule contains 100 mg of saiga antelope antler extract. SAYVILEN is dedicated to help prevent erectile dysfunction, also called sexual debility. This problem causes absence of normal erection, absence during sexual activity. It is also recommended, as a comprehensive help for prostatitis and other problems with urogenital system.