Mix about 1/3 foundation, 1/3 moisturizer, 1/6 chafing gel, and 1/6 sunscreen into the bottle. I like to shake it well to get everything mixed, or you can find something to stir the ingredients instead. Honestly, some may need a little more foundation or less chafing gel depending on your skin. Some may need to test it out and see what works best for your skin, but honestly once you find the perfect match for your skin you will fall in love with this DIY BB cream. My skin looks flawless and I always get compliments on how fresh and natural my face looks!