Melt the shea butter, sunflower oil, emulsifying wax and cetearyl alcohol in a double boiler. If you don't have a double boiler, you can also melt in a saucepan on low heat.
Once the oils are melted, heat your water up in a separate container to about 160°F. You can use a microwave or saucepan.
Transfer the water into a large bowl and slowly add the melted oils-pulse with an immersion blender for about 60 seconds. You'll want the temperature to be 130-145°F before moving on to the next step.
Add your preservative and continue mixing with the immersion blender until completely combined, about another 60 seconds.
Transfer to an airtight container and allow it to cool completely before securing the lid.
If you are using a pump style container, scoop the lotion into a zippered bag, close it fully, then trim off a corner and squeeze the lotion into a pump bottle. This is especially helpful if your container has a small neck.
Notes
Update: This recipe has been made to store for up to 4 months.Keep the lotion out of direct sunlight and in a cool, dry place to extend its shelf life.If you notice any changes in the lotion’s texture, color, or smell, discard it immediately.Feel free to add a few drops of essential oils for fragrance.Always wash your hands and sterilize the equipment before starting the recipe. This will help prevent bacteria or germs from contaminating the lotion.Always perform a patch test before using your lotion on a larger skin area. Look for signs of skin irritation before using it on your whole body. Scroll up for step-by-step photos.I chose Geogard 221 broad-spectrum preservative for this recipe. Because of the water in the recipe, you must include a preservative. You can use any broad-spectrum preservative; just be sure to use the correct dilution rate and that it's compatible with these ingredients.