The below information is from the manufacturer:
Testofen: A patented muscle building ingredient extracted from Fenugreek, Testofen has an uncanny ability to increase testosterone levels. This standardized fenuside formula, Testofen contains a power bioactive compounds including (protodioscin and steroidal saponins) which has been shown to improve libido, deliver androgenic and anabolic, and increase bioavailability of free testosterones leading to an increase in healthy muscle growth and function.
20-Hydroxyecdysterone: This powerful ingredient is designed to improve athletic performance and strength without the androgenic influence. 20-Hydroxyecdysterone improves the size of the different muscle fiber types. A published study showed that there were improvements in strength, body composition, and available free testosterone.