Leader Performance Super Electrolytes electrolyte drink powder is an effective rehydrator that restores fluid and salt lost during training and sweating. In addition to key electrolytes (sodium, potassium, magnesium, chloride), the product contains vitamin C that helps to reduce fatique and tiredness. The sodium in the product is from the renowned, natural and mineral-rich Guérande sea salt. Mix the powder with water, and you get fresh watermelon and strawberry flavored drink without calories or sugar. Manufactured in Finland.