Additional minerals found in Aloe vera include copper (important for red blood cells, skin and hair pigment), iron (involved in oxygen transportation and making of hemoglobin in red blood cells), potassium (helps with fluid balance), phosphorus (helps build bones and teeth, assists with metabolism and body pH), and sodium (regulates body liquids, helps with nerve and muscle performance, and helps deliver nutrients into body cells).40 Aloe vera also contains the trace minerals of rhodium and iridium used in cancer and tumor research experiments.41