Add the beeswax, shea butter, and avocado oil to the top of the double boiler or glass bowl. Stir occasionally until melted.
Turn off the heat and add the raspberry seed oil and essential oils.
Whisk in the powders: zinc oxide, iron oxide, and mica.
Remove from heat and stir occasionally as it cools. The powders will want to sink to the bottom so they’ll need to stay mixed in.
Once the lip sunscreen is mostly cooled, but still soft enough to pour, pour the mixture into your containers.
Notes
The iron oxide adds a pink color and the mica adds a little sparkle. You can use both or neither, but it will have a white cast without any iron oxide.