Niagen 300 Nicotinamide Riboside (NR), Patented Energy Optimizer, 300mg Extra Strength (150 mg per Capsule, 60 Capsules per Bottle) Highest Potency Capsules, Best NAD+ Booster Offered by Thrive Now Health Price: $56.39
Good quality, fresh! Update: 9/5/16 After taking this for awhile now on a daily basis before work and I can say that I feel more alert during my 12 hour shifts. I noticed a difference the first week of taking them, I'm guessing my body was low on vitamins and then the newness started tapering off, I still feel alert, but the difference was totally noticeable at first and now I just feel normal, but I don't drag at work and I don't have to drink coffee all night either. Looks exactly as pictured. Seal intact, there was no harsh smells from the bottle.The capsules are filled with powder and there is a packet inside to keep freshness in and moisture out. Took as directed and experienced no stomach upset or digestion issues. I'll update after taking them for prolonged time with any noticeable effects of taking them. I received this item at a discounted price in exchange for my honest and unbiased review. https://www.amazon.com/Nicotinamide-Riboside-Patented-Optimizer-Strength/dp/B01EL0MXFY/ref=cm_cr-mr-title