The invention relates to a dialysis solution for haemodialysis or peritoneal dialysis, said solution having a theoretical osmolarity within the range of from 250 to 550 mosm/L and a pH value within the range of from 4.9 to 8.0, said solution comprising a creatine compound and one or more electrolytes, wherein the concentration of the creatine compound is not more than 50 mM.