Supports Relaxation "Gussurium" is a sleep support supplement containing GABA and Theanine. Main Ingredients: L-Theanine 200mg, GABA 100mg (per 3 tablets). Contents: 45 tablets (approximately 15 days supply). Purpose: Improves sleep quality and supports deep sleep and a refreshing awakening. Target Audience: Recommended for those who have trouble falling asleep, wake up during the night, or feel tired upon waking up in the morning. Expiration Date: 2028.2