Aloe vera gel is typically transparent and does not exhibit any specific colour. However, it may occasionally develop a slight yellowish hue over time. This phenomenon can be attributed to the oxidation of the aloe vera gel when exposed to air. Heat can also contribute to the degradation of the gel. This is why it should be stored in a cool place. If its olfactory properties remain unchanged, the application of this gel poses no risk.
However, when the colour change is pronounced and the gel turns from ochre to brown, and/or its smell alters, it is recommended to cease its use.
This is why the aloe vera pulp is immediately stabilised after its extraction. This is achieved by homogenising it with certain substances that neutralise the action of enzymes without destroying them, which are responsible for the rapid oxidation of the gel when exposed to air. In this way, they are always present in the gel and it retains its benefits. Before being incorporated into skincare products, it typically undergoes a second stabilisation for enhanced effectiveness and greater safety.
How to properly store aloe vera gel?
In order to prevent any risk of oxidation or degradation of the aloe vera gel, it must be stored in a hermetically sealed and opaque container. After extraction, the aloe vera gel can be kept for 24 to 48 hours in the refrigerator. However, it is possible to preserve it for a longer period by adding vitamin C and E.
To achieve this, mix the aloe vera gel with one or two of these vitamins (approximately 500 mg of vitamins for 60 mL of gel). This way, you can keep your gel for six months in the refrigerator. One final tip is to freeze it. Aloe vera ice cubes can generally be stored for a year in the freezer.