I take both Magnesium L-Threonate and Magnesium Glycinate daily. . I was introduced to Magnesium L-Threonate a few years ago. And, in my opinion, the stuff is amazing. It has helped me with mood, focus, energy, stress, sleep, etc. . This is the version I take of it: https://www.amazon.com/Magnesium-Threonate-Magtein-Supplement-Inventors/dp/B011M06YFG/ref=sr_1_5?crid=11A0SNPZP08P7&keywords=magtein&qid=1660758483&s=hpc&sprefix=%2Chpc%2C110&sr=1-5 . No, I do not have a commission or affiliate deal with Amazon or the company that sells this product. I just like the product. . I take one capsule in the morning and one capsule in the evening. If you are ever not sure if it is working after a couple months, then go off of it. That’s what I did and then I immediately jumped back on it.