Insta Hard is a supplement that naturally increases the level of testosterone, thereby promoting muscle gain. It provides the body with all the nutrients it needs to increase testosterone. It stimulates our body in order to cause it to produce more testosterone, a hormone that helps build muscle by intervening in protein synthesis. It thus makes it possible to develop muscles in a faster and healthier way. It helps the body release more testosterone for the muscles, while promoting faster recovery and increasing endurance and physical strength.