How to Make Your Own Homemade Tanning Lotion, 1/2 cup unscented white lotion and 1/3 cup of pure cocoa powder and mix together until no clumps are visible. Apply moisturizing lotion before applying tanning lotion for better results. It will appear much darker in the bowl then on your skin. As you apply to skin it shows automatically how dark it will be. Keep lotion in another empty lotion bottle.