Mixing Essential Oils
You will need clean, dry tightly capable/corkable bottles for your blended oils, you may also want droppers, funnels. Amber or cobalt blue bottles are best to protect oils from light and heat, which causes oxidation (rancidity).
Work on a clean, dry workspace. Use one dropper per stock bottle, to keep your oils from being contaminated by other oils in the process of blending.
If you are using blended oils, you will not need to dilute them. If you are using essential oils, you must dilute them (see information on carrier oils, above and below, and in the formulary.)