Give yourself a boost of long-lasting energy while supporting increased mental focus with Energy + Focus from Zhou Nutrition. Featuring an invigorating dose of caffeine and the powerful amino acid L-theanine. L-theanine is excellent for promoting a sense of calm while supporting mental focus. This safe and effective nootropic supplement won't make you feel jittery and nauseous the way many other supplements will, instead giving you a jitter-free, crash-free boost to help you stay on point throughout the day. Zhou Natural Energy + Focus veggie capsules are lab-verified and are free of gluten, soy, preservatives, animal products or derivatives.