When talking in general, a gel is a thickened liquid that is easier to apply, while lotions have liquid consistency that makes them easier to spread and quicker to absorb. In this case, the best Aloe vera lotion will moisturize the skin, soak in faster, and won’t leave any stains on clothes. On the other hand, Aloe vera gels are better for cooling off sunburns (especially if refrigerated) and give you instant relief.