Aloe Vera is soothing to the skin (especially when you have a sunburn), moisturizes the skin and can prevent hyperpigmentation. Aloe contains polysaccharides, glyco proteins, enzymes, vitamins, and minerals. Aloe Vera can be used to temporary “tighten” your skin. So you would want to apply this right before you go out.
All you would need to do is cut a piece of the aloe vera leaf, slice it open and apply the gel directly to your face, leave it on for about 10-15min and rinse off with cool water.