I didn't know that he is selling these substances. I thought he is just a scientist.

Reservatrol is indeed (too) expensive. I decided to go without it.

Mark, I thought you were probably the user that knows the most about these substances(even without taking them). Don't you know something more about them?

Grape seed extract is the strongest anti oxidant in the world, the question is if you need it when you already take vitamin e. Same thing applies to ALA.

I don't know a lot about the others especially 2),3) and 5)