We I completely understand your concerns.
In our products we use the highest quality ingredients available. Everything is made in the UK.
We are a team of health experts / nutritionists, and were mainly formed as a company primarily because there are so many poor quality products out there (certainly not limited to the internet - in reality, what you get on the high street is normally the poorest in terms of quality which a lot of people don’t realise).
Here's some of our reviews - https://autoimmuneinstitute.com/pages/reviews