Some supplements advertise 20 or more ingredients. Nervogen Pro uses five. Here's why that's not necessarily a downside.
When a formula spreads its total weight across a long ingredient list, individual components often end up at trace, likely-ineffective amounts — even if the label looks impressive.
A shorter list allows each ingredient to be dosed more meaningfully, and makes it easier for you to actually understand what you're taking and why.
Rather than counting ingredients, look at whether each one is dosed at a level anywhere close to what's used in published research on that specific ingredient. A short, well-dosed list beats a long, diluted one.