20mg. At first an increase in mental energy but a few minutes later it becomes a mild fatigue, exactly like carnitine or nicotinic acid feels like for me.
I thought it might be related to my blood sugar which I know it can be with carnitine and nicotinic acid so I ate a large meal, but eating doesn't change it for me.
I also noticed pain in my right arm that persists even hours later. The pain feels like growing pain though it is very mild.
Ironic for a supplement that's supposed to combat pain and fatigue.
I will update in the following days as to what I feel. I only have 10 tablets though so it will be a short review.
Placebo, placebo, placebo. Everything is placebo! No, it isn't placebo, stop repeating that silly mantra.