There are three things that I can directly attribute to taking ETS. The first and most noticeable is that I am no longer getting DOMS. Before taking this supplement I would be extremely sore 2 days after an intense woukout, squats for example, and I could be sore for up to a week. After taking it consistently for 1 week I have virtually no DOMS. The second is the elimination of elbow pain when doing tricep exercises. Finally, I have noticed that it is easier for me to fall asleep and increased vigor in the mornings.