Combine coconut oil, beeswax, shea butter, and cocoa butter in a 16-ounce glass measuring cup
Place in a pot with water that rises to halfway up the measuring cup
Bring water to a boil, stirring frequently until ingredients are completely melted
Remove measuring cup from the pot
Add dried lavender and lemon zest, if desired
Add essential oils and stir until completely combined
Immediately pour into silicone molds
Let sit overnight
Once cooled, remove the lotion from the molds
Store in a cool, dry place
