Antioxidant, Immunity, Digestion Aloe Vera has cooling and soothing properties. It contains more than 20 amino acids that promote healthy hair and skin. It acts as a demulcent to the digestive system and aids in proper digestion. It may also be useful in the cases of constipation, acidity, and liver weakness. Aloe Vera boosts the body's defences at the cellular level, stimulating the immune system.