(2) Barbaloins, which yield aloetic acid , chrysammic acid , picric and oxalic acids with nitric acid, being reddened by the acid. This second group may be divided into a-barbaloins, obtained from Barbados Aloe, and reddened in the cold, and b-barbaloins, obtained from Socotrine and Zanzibar Aloe, reddened by ordinary nitric acid only when warmed or by fuming acid in the cold. Nataloin forms bright yellow scales. Barbaloin prismatic crystals.
Aloe vera gel is used fro minor treatments of wound,burns and skin irritations. Now aloe gel is available in tubes. There is a home remedies for asthma was to boil some Aloe Vera leaves in a pan of water and breathe in the vapor. Its juice is used into beverage and taken internally in many other conditions. In skin treatment it is helpful and acts as rejuvenating the skin. It is also used in different beauty products and it works as a moisturizer and hydrates the skin. When it absorbs into the, it stimulates the fibroblasts cell, these cells produce the collagen so the skin becomes smoother.
Aloe vera plant is very effective in some ways but the folk lore that it has 'magical healing effect' can never be regarded as cure of all ailments completely. It does however, have significant and highly positive benefits in some skin diseases.