Weider Prime is Weider's best-selling pro-hormone formula in the United States. Due to its success in the US, Weider Prime has now come to Europe to make a difference in natural 100% testosterone boosters. Promotes natural testosterone production - KSM-66™ (Ashwagandha): a clinically proven, patented extract of high purity and high power. KSM-66 improves resistance to stress and enhances a sense of well-being. Studies have shown how KSM-66 improves endurance and maximal oxygen consumption. - Cordyceps: an ingredient that increases the body's natural resistance to environmental stress (an adaptogen). This herbal component has been used in China for centuries to increase vitality and physical endurance. - Vitamin D: levels of this vitamin are directly related to testosterone levels. The vitamin involved in the proper functioning of muscles. - Vitamin B6 and B12: vitamins involved in energy metabolism. - Zinc: key mineral for testosterone production. - Chromium: involved in the correct functioning of insulin and in the regulation of glucose levels. - Choline: aids in the proper metabolism of fats. - Bioperine: a patented form of piperine that improves the absorption and bioavailability of the ingredients in Weider Prime. Testosterone is a key hormone responsible for male sexual characteristics and the development and maintenance of muscle mass. It also affects energy, libido and mood. Testosterone levels decrease due to external factors such as diet, stress, lack of sleep and also decrease with age (approximately 1% per year after middle age). Low testosterone levels can cause low energy levels and an increase in weight and body fat. Low testosterone levels also lead to less muscle mass, less strength and even a reduced ability to concentrate. The Weider Prime formula and its combination of active ingredients were specifically designed to reduce the effects of stress and external factors on natural testosterone production, and to provide essential nutrients for the production of this hormone: - Increase energy and vitality. - Reduce body fat and increase muscle mass. - Improve physical performance and mental focus.