Support For A Calm, Positive Mindset Formulated To Support Healthy Production Of The Neurotransmitters Gammaaminobutyric Acid (Gaba) And Serotonin, With Clinically Effective Levels Of L-5-Htp And L-Theanine This Product Is Non-Gmo, Gluten Free, And Vegetarian Covered By The Metagenics, Inc;60-Day Satisfaction ; Additional Terms Apply; See Below For Details Serosyn Features Clinically Effective Levels Of L-5-Htp And L-Theanine To Support Healthy Levels Of Specific Neurotransmitters And Is Enhanced With Standardized Extracts Of Asian Ginseng And Chinese Skullcap To Target The Stress Response, Cognition, And Mood, Which Are Closely Interrelated. Specific B Vitamins Are Added To Support Methylation, Homocysteine Metabolism, And Healthy Neurological Function