First, let me preface by saying I have been using essential oils for aromatherapy for at least 20 years. I wasn't expecting much given the low price. There are many essential oil producers that sell both high end and very low end oils. The lowest end oils I've used previously have been exactly what I paid for. Very low potency, strange chemical odors etc. I recently purchased a diffuser so I figured I'd take a shot with these as I needed oils. Again, I wasn't expecting much but these essential oils from Spruse are on point. Fantastic potency, no strange odors. I would easily put these side by side with oils from Sage, Essence or anything Whole Foods sells. The big difference is price. Spruse, I hope you do well with your products. I know I will only buy these going forward.