As with a fermented food like kombucha, slight natural variations are normal and to be expected in a product such as CBD oil because it is made from living plants. Changes in the weather, soil, and water can all impact the biology of the source material. While we verify Certificates of Analysis (and take many other criteria into consideration during our review process), even the most reputable five-star companies have no way to control for every variable in this organic process.
Not only are we all made differently, we each have our own unique history with the use of substances, medications, supplements, and other things we put in our body. Because of this, we all have different body chemistry, and this will affect how our body reacts to CBD. As R.R Noall over at Herb puts it, “what works for your friend, may not work for you.”