Each essential oil is tested by an independent lab which is why every bottle comes with a quality guaranty
All handcraft blends essential oils are tested by an independent lab to test the efficacy of each oil. each oil is tested for its constituents as well as to have no fillers, additives and to be undiluted
The oil comes in an amber glass bottle to keep out UV rays and protect the oil against sunlight. We also provide a glass dropper, so you get the exact amount of oil without any waste