It comes from the US, but is written in French (Dutch attention only in French), they put out the composition, and it is very comprehensive. By cons compared to Vin * lake, they are less assayed.
I feel much difference, less tired, the body that follows the daily activities. No stomach upset, no adverse effect.
You have to take one tablet per day, not two like some websites say.
The only negatives are that the stamps are huge! I can take the whole with a big swig of water, but I advise to cut into two or even three to ingest.
In short, I recommend it!