Hi, in the last 3 months I tried dosages of 10-40 mg of CBD per day (full spectrum oils) to reduce symptoms of anxiety, inner tension and derealization. No effects so far with different oils.

I saw several studies, like this one: [https://www.scielo.br/scielo.php?script=sci\_arttext&amp;pid=S1516-44462019000100009&amp;tlng=en](https://www.scielo.br/scielo.php?script=sci_arttext&amp;pid=S1516-44462019000100009&amp;tlng=en), which describe a U shape effect depending on the dosage with best anxiolytic results at 300 mg single dosage.

I know, studies usually exaggerate the dosages, but as some studies found effects around 300 mg with no or much less effects at lower dosages, I would like to finally try this. Now, I am wondering about the costs and the best/cheapest type of CBD for high dosages. I guess oil capsules would be around 20 to 40 pound per day, so pretty much not doable for a longer time.

In the above mentioned study they write about the used CBD “CBD (150 mg, 300 mg, or 600 mg) in powder form (99.9% purity), was dissolved in corn oil. The same amount of corn oil was used as placebo, and both the drug and placebo were packed inside identical gelatin capsules. These doses were chosen based on previous evidence that acute anxiolytic effects have been observed in healthy subjects given doses ranging from 300 to 600 mg of CBD.”

So, what I understand is that they used CBD isolate powder, right?

Is isolate powder the most affordable way of trying high daily dosages or are there better ways? Anybody knows good powders and is there anybody with experience in high daily dosage consumption?