cocoa powder, 1-7 tablespoons (optional) - the tinted sunscreen in the picture above used 5 tablespoons
Instructions
Melt all ingredients except zinc oxide and cocoa powder together in a double-boiler (or in a small saucepan set inside a slightly larger saucepan with simmering water). If you must heat the ingredients on direct heat, be sure to use the absolute lowest setting your stove will allow.
When all ingredients are melted, remove from the heat and stir in the zinc oxide and cocoa powder, if using. Be careful not to breathe in the zinc oxide powder.
Make sure the mixture is well mixed, especially if you're using large amounts of cocoa powder, then pour the mixture into your deodorant tubes.
Let stand until completely cool and very firm, 6-12 hours.
Store in the refrigerator for 6-12 months. Carry in any bag, but word to the wise: if you will be in a warm location, keep the sunscreen in your cooler or store in a zipper-top plastic bag out of the sun, as the sunscreen will soften as it warms.
Apply liberally and reapply anytime water no longer beads on top.
Notes
Makes 2 deodorant push-ups (2.5-oz size) - see where to buy deodorant tubesGeneral rule of thumb to determine amount of zinc oxide: