Doubling the NAD+ Dose May Be Unwise: I Was a Trial Subject.
Re increasing the dose for NAD+, I was a subject asked to take a double dose of nicotinamide riboside in the initial study behind the Basis product.
After a short time I had to drop out of the study due to disabling headaches.
I now use the LEF product in a single dose as I once used Basis successfully and get my resveratrol from a different product I take for brain and memory rejuvenation at the same time. My functioning has improved through use of these products.
Thought this information might be helpful as you plan your rollout of deeper research and product development.