Magnesium Glycinate 400mg per Serving

What the brand says

Sold as “Magnesium Glycinate 400mg per Serving – High Absorption – Gentle on Stomach – Supports Sleep, Relaxation, Muscle, Bone & Immune Health – Non-GMO, Vegan, 90 Capsules”

Simpli Supplements' High Absorption Magnesium: 400mg Magnesium Glycinate in 90Capsules (Vegan-Friendly, USA Manufactured, Third-Party Tested, Gluten-Free, Non-GMO)