While I can't tell if my muscles have improved any yet there were some immediate results in my hand which needed some healing from blood that spread out over the back of my hand; under the skin, turning it purple, I started taking the amino acids after nearly two weeks of partial recovery and it attacked the necessary area with a vengeance for a few hours the first night making a significant improvement the first night and with similar but lesser fervor the next two nights, when it was nearly completely back to normal.