What purposes can be affected by these differences? I know that you have spoken about both immune support.

Yes, the effect of an essential oils on the immune system is a prime example of a purpose that can be drastically affected by the chemotype or characteristic of an oil.  It’s important to understand that some pathogens are negatively charged and some are positively charged. Since the ratio of potassium to nitrogen can affect the “charge” an essential oil, when using essential oils to help fight a pathogen, you want a negatively charged oil to fight a positively charged pathogen and a positively charged oil to fight a negatively charged pathogen.  If these aspects are not accounted for, then it is just a “crap shoot” (where it’s just left to chance) and with the hope that you get it right. This whole idea is also very important to understand when doing formulations and blending.  And it’s also important that the Clinician or therapist understand this in order to select the best protocol for the patient.