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To make the diluted essential oil solution, you'll need to gather a few items. You'll need your selected essential oil and your supplemental carrier oil, a separate bottle or container to hold the new mixture, and several eye droppers. Try to get dark colored glass bottles to filter out the damaging UV rays. Using two separate eye droppers to avoid cross-contamination, make your mixture based on the formula you have already established. If your formula calls for 12 drops of essential oil and 5 drops of carrier oil, use your eye droppers to extract the desired amount of each liquid and carefully squeeze it into the new container making sure to count each drop carefully. Once you have added both ingredients, put the lid on and give it a good shake to ensure the contents are properly mixed. And don't forget to label the bottle before you put it away and forget what is in it. Be cautious about direct contact to the skin of the undiluted essential oils. You should also carefully weigh your decision to use essential oils if you are pregnant. There is controversy around whether or not essential oils can impact a fetus, so you should carefully consider it for yourself. Typically, you need to store your essential oils (including diluted essential oil mixtures) in a cool, dark place. It's important to keep them out of direct sunlight or away from places that are constantly being cooled and warmed based on exposure to the sun. This will keep them from becoming useless because of increased oxidation over time. Carrier oils should be stored in the fridge during the hot summer months to avoid fatty particles from forming that will need to be re-dissolved before you can use it. But they should still be at room temperature when you use them for mixing, so take them out of the fridge twelve hours before you intend to use them.
Gather the necessary materials. Make the mixture. Take the proper safety precautions. Store your solution properly.