When you’re looking for a supplement that helps you relax without making you feel drowsy, then CanPrev’s L-Theanine with Magnesium just might be the answer. L-theanine is an amino acid found in green and black tea and commonly used as a natural stress reliever. In addition, it can help to improve concentration and focus without making you feel sleepy. As a psychoactive substance, L-Theanine can easily cross the blood-brain barrier, directly working its magic on the central nervous system. CanPrev’s L-Theanine provides an impressive 250 mg of pure L-theanine along with 20 mg of magnesium bisglycinate to promote a state of relaxation so that you can stay focused and productive.