Nuun Hydration - Have you noticed the white residue around your glass when drinking Nuun Rest? Well, it's Magnesium and it's completely natural! Try dissolving the tablet in 2oz of hot water
Nuun Rest: Rest and Recovery Drink Tablets, Magnesium Citrate, Tart Ch – Optygen HP
Nuun Sport: Electrolyte Drink Tablets, Variety Pack, (60 Servings), 10 Count (Pack of 6) : Amazon.com.au: Health, Household & Personal Care
Nuun Recover - Post-Workout Supplement – Nuun Hydration South Africa