Dietary SupplementEnergy SupportHealthy SleepCollagen ProductionGluten-FreeNo Artificial-PreservativesPotency & Quality GuaranteedAn FDA Regulated FacilityCarlson® Providing the highest quality nutritional supplements since 1965. Glycine helps maintain optimal energy levels and healthy metabolism, promotes relaxation and a healthy sleep pattern, and plays an important role in collagen production. Glycine in powder form promotes superior absorption.