Aside from freezing aloe vera gel, you can extend its shelf life in the following ways: Combine vitamin E and aloe gel in a blender and store in an airtight container in the fridge. This mixture can be used in hair masks, face masks, and nail treatments. Combine equal parts aloe gel and honey. Refrigerate and use as a hair mask or face mask alone or with other natural ingredients. Vitamin C is a natural preservative; combine freshly squeezed lemon juice and aloe gel thoroughly. Refrigerate and use as needed on the face and hair.