Blending factors are judged on a scale from 1-10 usually. One being that the oil is more potent and you need less of it aromatically and ten meaning that it is less potent and you will need more of that oil. For example, if you are blending something with Lavender (blending factor 7) you may need to use 10 drops or more and if you are blending something with Cinnamon (blending factor 1) you may only need a couple drops. Read more about making essential oils blends using blending factors on my blog at: Essential Oils Understanding Blending Factors.
*The FDA has not evaluated the statements on this website. No claims are made by Restorative Aromatics as to the medicinal value of any essential oils or products discussed or sold on this website. The information presented here is for educating about the traditional uses of essential oils and is not intended to diagnose, treat, cure, or prevent any disease. You are responsible for understanding the safe application of these products.