External Applications
Apart from wound care, the oldest aloe application is probably cosmetic use. Aloe vera is the largest moisturiser known from nature. In the 20th century, science increasingly studied the desert plant, including the Sorbonne in Paris. Prof. Mahilewsky explains the healing effects of aloe vera by the fact that its gel has an extremely high degree of skin penetration:
While almost all cosmetic active ingredients only reach the first two layers of the skin, aloe penetrates much deeper.