When you combine two or more substances, and the resulting performance is greater than the sum of their parts, you get what we call a”synergy”. So when we combine several different essential oils, we are creating a synergistically therapeutic beneficial combination, because the interaction between the chemical constituents leads to something new, and greater than the oils used separately. We’re transitioning to rename some of our synergies to simply “blends”, but that doesn’t mean they’ve lost any of their power.