Add the beeswax, safflower oil, raspberry oil, and hydrosol a double boiler or an aluminum bowl filled with water on low - medium heat, until they are melted.
Remove from the heat and immediately mix with a manual egg beater spatula until the cream starts to form and until it is the consistency of a cream. if it is hot in your kitchen, then add the double boiler in a pan filled with cold water. Your spatula must leave marks in the cream.
Add the zinc oxide, mix well.
Add the grapefruit seed extract, mix well.
Pour in a glass jar container or in a squeezable plastic bottle.
Use within 6 months and apply this DIY sunscreen before going under the sun. Please note, this is not a waterproof sunscreen!