Beeswax comes in a natural color which is yellow, and also white. I used the white for my candles. A lot people suggest using organic filtered beeswax because pesticides may still be present, but since I am using these outdoors, I wasn’t to particular about the brand I used, but please take that into consideration when purchasing. Filling up your aluminum can makes 1 candle. If you want to make a large batch, you can use a double broiler to melt more wax at once. The amount of citronella oil is a personal preference. I found 5 drops per aluminum can to be great for me, and seems to work pretty well. Adjust as necessary. This will NOT keep away every single mosquito, but it certainly reduces the mosquito bites and I find that they work MUCH better than store bought!