I鈥檝e been using Magnesium L-Threonate for a while, and I really like it. I work out regularly, and I鈥檝e noticed that my muscles feel less sore and tense after intense sessions. It seems to help with muscle relaxation, especially in the evening, which makes a big difference in how I feel the next day. If you are a gym lover, you have to have it in your dailies!