GNC Mega Men Essentials Advanced Testosterone supports healthy testosterone levels with GNC's clinically studied support for men*. Declining testosterone levels can impact: - Sex drive* - Muscle strength* - Bone density* - Men's well-being* - If you're a man over 30, testosterone is declining: It's true-testosterone levels begin to decline 2-3% per year starting at 30 years old, but GNC Mega Men Essentials Advanced Testosterone delivers science-backed support for healthy testosterone levels and more* - Support healthy testosterone levels: Testofen, a powerful herbal extract, is clinically studied to help prime men's bodies for peak...