First you need to make a cup of very strong tea. I use black or orange pekoe varieties. Make this by using 3 tea bags in a measuring cup and pour boiling water over it. You need 1/2 cup. So I normally fill it to the 3/4 mark. By the time I take the tea out I have about 1/2 cup of strong tea.
While your tea is steeping melt together in a double boiler 1/4 cup avocado oil, 1/4 cup sesame seed oil, and 1 tablespoon of grated beeswax.
Mix 1/4 teaspoon of borax into the 1/2 cup of strong tea.
Once the beeswax has melted pull the pan off the heat. Take the pan out of the double boiler and set on a hot pad. Now comes the tricky part. While whisking with a whisk slowly add the tea to the oils. As you add it the mixture will become creamy like a lotion.
Continuing whisking the sunscreen until it is completely cooled. Once cooled transfer to containers. It makes about 8 ounces. The sunscreen might separate slightly in the containers but just shake the container well before squeezing it out to use. The sunscreen lasts forever. I have had sunscreen left over from the previous year and it had not gone bad on me. I just shook it up well and applied.