Electrolytes are minerals found in fluids in our bodies. They break down into electrically charged particles - ions and are responsible for regulating water balance, PH levels in the blood (acidity), and also create electrical impulses necessary for muscle contraction of any physical activity. Isotonic, in turn, is a source of electrolytes, and also compensates for the loss of salts during training and on a hot day, reducing the risk of injury and imbalance of salts in the body, helping to avoid fatigue and nausea during training and headaches after training. Recommended: 1 bottle per 1 hour workout, 2 bottles per 2 hour workout. During or after training. It is advisable to drink water at the same time. Price per package (12 pieces): 750 RUR.