This site is direct about naming only two ingredients, but does not state a specific reason why the rest is kept as a described-by-purpose blend — worth exploring what this site does and doesn't say about that choice.
This site frames the two named extracts as the formula's core, with the Neuro-Optimizer Blend and antioxidant support positioned as supporting components described by purpose rather than ingredient name.
Worth noting this site does not claim a specific competitive or proprietary reason for the non-disclosure — it simply states the fact directly and recommends checking your own bottle's label for specifics.