"Nootropic" shows up on countless supplement labels, but the term has a more specific origin than most marketing implies.
The word was coined in the 1970s to describe substances meeting fairly strict criteria around cognitive enhancement and safety, based on specific early research.
In modern marketing, "nootropic" has become a loose umbrella term applied to almost any product positioned around focus or memory, regardless of whether it meets the original definition.
Seeing "nootropic" on a label tells you about positioning, not about a specific, verified effect. The actual ingredient list is what tells you something concrete.