Vegetology Hi Alan, I'm sorry you had a bottle with a loose cap. That is strange. If you would like to return it for a new bottle, please just let us know. We add a small amount of Orange Oil to help make the product suitable for children. Algal Oil does have a sharp taste profile, and the orange oil helps to take the edge off this and create more of a balance. We did a lot of testing with and without the small amount of Orange Oil, and the data showed we had to include it. Hopefully the last star can be restored, because we absolutely use extra virgin olive oil. In fact we need to use specific fractions of extra virgin oil too (so the result is extra extra virgin), as that's a vital part of keeping the Algal Omega-3 Oil stable.