Aloe vera gel is a valuable ally for reducing dark circles and bags under the eyes. It primarily helps to regulate microcirculation of the blood. Several studies have highlighted a vasoconstrictive effect of aloe vera gel, although the exact mechanism involved has not been explicitly defined. It is also suggested that the minerals in the gel could provide elasticity to red blood cells, which would make the blood more fluid: this would then circulate better within the body. These properties are beneficial for individuals with bluish dark circles, which are caused by poor blood circulation.
However, it should be noted that if dark circles are of hereditary origin, it is impossible to diminish them.
Furthermore, aloe vera gel has a tightening effect on the skin. This property is beneficial for delaying the onset of fatty pockets and hollow dark circles, making aloe vera a preventive solution to these issues. Glucomannan, a polysaccharide that forms part of the gel's composition, influences the fibroblast growth factor, TGF-β1, and stimulates cellular activity and proliferation. As fibroblasts are responsible for the production of collagen and elastin, the synthesis of these molecules is increased. They contribute to the preservation of the skin's structure, as well as its suppleness and elasticity. Strengthening these fibres thus helps to slow down the process of fatty tissue slippage, which leads to the formation of bags.
Aloe vera gel also possesses antioxidant properties, which allows it to delay cellular ageing. Indeed, it boosts the production of metallothioneins, proteins that increase the resistance of cellular tissues to oxidative stress. Moreover, it contains vitamins A, C and E which are antioxidants capable of neutralising free radicals.