People use liquid oxygen to increase their energy levels, support the immune and nervous system, and rid the body of pathogens and toxins, according to WebMD. It is used to ease the symptoms of arthritis, depression, aches and pains and asthma. Some people also take liquid oxygen to combat diabetes, respiratory problems and cardiovascular complaints.
Other uses of liquid oxygen include bolstering the reproductive system, treating migraine headaches and skin disorders, soothing itching, and killing germs on the surface of the skin, says WebMD. Improving mental alertness is also a reason people take liquid oxygen.
However, as of 2015, no evidence exists that liquid oxygen is useful for any of these maladies, claims WebMD. There is insufficient information about the safety of liquid oxygen for pregnant women or women who are breastfeeding, so pregnant or breastfeeding women should avoid it.
True liquid oxygen only exists at temperatures that are lower than -297.4 degrees Fahrenheit, says WebMD. The supplements that are advertised as "liquid oxygen," or "vitamin O" have chemical formulas that may range from deionized water and salt to magnesium peroxide. Because there is not adequate data on the effectiveness of liquid oxygen, there is not an established proper dosage.