Calmness Support Supplement: Allergy Research Group 200 mg of Zen provides L-theanine and GABA to support relaxation and adaptive stress response for daily wellness* | Non Drowsy Relaxation: Supports natural pathways involved in cognitive focus, a positive outlook and calm alertness during day or night use* | Neuro Support Formula: Delivers clinically relevant doses of L-Theanine and GABA to support neurotransmitter pathways related to calm and clarity* | Highest Purity Standards: This supplement is free from gluten, dairy, soy, corn, nuts, egg, shellfish, fish, sesame and yeast | Solutions Backed by Science: Allergy Research Group and its family of brands—Metabolic Maintenance, MethylPro, Nutricology and Optimox—have delivered trusted supplements for more than 45 years