Isotonic is a food supplement in the form of powder for preparing a drink. It contains complex of vitamins, minerals and ashwagandha root extract. Calcium, biotin, thiamine, riboflavin and vitamin B12 contribute to the maintenance of the proper energy metabolism. Magnesium, niacin, folic acid, pantothenic acid and vitamin B6 help to reduce the feeling of tiredness and fatigue while potassium helps in the proper functioning of the nervous system and muscles

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