[editor-surveyor]

> “Aloe vera is one of the best. It just needs a good preservative to keep it from going old too quickly...longer shelf and usage life.” <<

.
Preservative?

Cut piece of frond off of plant, rub on. The preservative (magnesium stearate) is toxic.

[Tainan]

Vitamin E (natural form) is used for preservation of items such as aloe vera gel items for topical application.
I was referencing a commercial usage of aloe vera gel as a skin penetrant or carrier for other herbs or ointments.
As part of a formula.