About The Ingredients: L-Theanine is an amino acid found almost exclusively in tea. It has been researched for it's role in relaxation, memory, a calm mind and stress. Tea leaves are a potent source of chlorophyll, which is another valuable benefit to this supplement. Caffeine is (as we all know) a bitter substance found in coffee, tea and soft drinks. It has many positive effects on the body's metabolism, including stimulating the central nervous system. This is why you find yourself feeling more alert and energetic after a cup of coffee. "Caffeine anhydrous" is simply dehydrated caffeine - anhydrous means "without water." Why Should I Take Caffeine & L-Theanine Together? When taken separately, caffeine and l-theanine have opposite effects on the mind and body. However, when taken together, these two ingredients work synergistically to help support a desirable calm, clear focus that is simply unmatched by any other combination of ingredients. #1 Most Popular Nootropic Stack If you're familiar with the term 'Nootropic', you probably already know about the popularity and effectiveness of this combination. Nootropics are formulated to enhance mental performance, and that's exactly why so many love this formula. It's a combination of well-known ingredients, and it really works! If you're ready to help support energy, focus & productivity without the jitters or crash, click "Add to Cart" now to experience the benefits of Energy + Focus for yourself!