According to the label, its ingredients are:
- Niacin 30 mg — 150% of the RDA
- Vitamin B6 40 mg — 2000% of the RDA
- Folic acid 400 mg — 100% of the RDA
- Vitamin B12 500 mcg — 8333% of the RDA
- Energy blend: taurine, glucuronic acid, malic acid, N-acetyl L tyrosine, L-phenylalanine, caffeine, and citicoline. Total amount of blend: 1870 mg. The caffeine content is not specified on the label, but it is supposedly comparable to a cup of the leading premium coffee.
It contains only 4 calories, with no sugar.
and later:
How Did They Choose This Mixture of Ingredients?
I asked the company that question and did not get a response. There doesn’t seem to be any rationale for anything but the caffeine, and certainly no rationale for the specific amounts of each ingredient.
More here. The conclusion? No better than a cup of coffee.
Not Unreasonable 