Aloe juice is believed to lower blood sugar levels, reduce inflammation and act as a laxative, according to Mayo Clinic. It may reduce the chances of lung cancer and prevent or slow tumor growth. Aloe is also believed to reduce symptoms of irritable bowel syndrome and lower cholesterol.
Aloe gel, found in aloe juice, comes from the plant's leaves and is traditionally used to treat wounds, skin infections, frostbite, constipation and other illnesses, reports Memorial Sloan Kettering Cancer Center. However, aloe juice also contains anthraquinone, a cathartic laxative that can cause diarrhea. Consumption of aloe juice or aloe gel is not recommended because of its potential gastrointestinal impact.
Using aloe to treat genital herpes, constipation, psoriasis and dandruff has some scientific merit, according to Mayo Clinic. However, taking aloe orally has been associated with cases of hepatitis, and using aloe as a laxative has not been approved as of 2015. Taking aloe latex orally is also not recommended because it stresses the kidneys and may contain chemicals that cause cancer, warns WebMD. Evidence is generally contradictory.
Aloe vera produces gel and latex, states WebMD. The gel is a thick, clear, jelly-like substance, while the latex is a yellowish substance just under the plant's skin. Aloe can be taken orally, applied topically or ingested as an extract.