Combine infused oil and beeswax, and heat mixture just enough to melt the wax.
Add essential oils, if using them.
Stir, then pour into wide mouthed jars. Let cool.
Stored at room temperature, this salve will keep for 6 months*. If you store it in the fridge (and dont use it with your fingers) it may well last 3 times that long.
* Any product containing water is a breeding ground for bacteria. Make sure all your equipment is very clean and dont dip your fingers into the finished product. Always use a small spatula or other applicator to keep products free of contaminants. Beeswax, essential oils and vitamin E are natural preservatives which should give your products a shelf life of 6 months. You can also use grapefruit see extract which is a strong antiviral agent.