How to Choose a Nootropic: A Physician's Checklist
“Nootropic" just means a substance meant to support thinking. The word carries no guarantee of quality, and sadly most products wearing it don't survive basic scrutiny. Here's the six-point checklist I give patients. It works on any bottle, and most of the shelf fails it by point three.
1. Named ingredients at disclosed doses. Every active and its exact milligrams, on the label. "Proprietary blend -- 900 mg" is a red flag — it lets a company hide a trace of the expensive ingredient behind a pile of the cheap one. If the amount isn't printed, assume it's too little.
2. Doses that match the studies. A named ingredient at a token dose is still marketing. Look up the amount used in human research. Citicoline was studied at 500 mg (Nakazaki et al., J Nutr, 2021, PMID 33978188); GABA around 100 mg (Yamatsu et al., 2016, PMID 30263304); L-theanine around 200 mg (Hidese et al., Nutrients, 2019, PMID 31623400). A product at a fraction of the studied dose isn't backed by the studies it cites.
3. Delivered dose, not powder weight. Some materials are a percentage strength. "200 mg" of an 80% powder delivers 160 mg of the active. Honest labels state what's delivered.
4. Standardization for botanicals. For plant and mushroom ingredients, the active compound should be standardized to a stated percentage — otherwise the headline milligram number is meaningless. Lion's mane is the classic example: the erinacine A content matters far more than the total mushroom weight.
5. Third-party lot testing. Not the word "tested", an actual certificate of analysis for the batch you're holding: identity, potency, heavy metals, microbials. If they can't show the paperwork, don't take it on faith.
6. Honest claims. Supplements support the normal function of a healthy body. Anything promising to treat, cure, or reverse a disease is breaking the law. Be most suspicious of the bottle that promises the most.
One more thing: a stack, not a single pill. Cognition isn't one thing. Attention during the day, and winding down at night, are different jobs that call for different ingredients — which is why a thoughtful approach is usually a small system used at the right times, not a single do-everything capsule.
Disclosure, and what I use
To be direct about my stake: my husband, Kevin Palmer, is a chemist who formulates a cognitive line called NeuraLegend, and I'm its Chief Medical Officer — I'm the one who reviews each formula and signs off before it ships. It's built around this exact checklist: named ingredients at studied doses, delivered-dose labeling, standardized lion's mane, and published lot testing. If you want to see how a line applies these points across a day, the full NeuraLegend system is ours — morning, daily, and evening formulas. We use them at home. But the checklist is the point; use it on whatever you're considering.
This article is general health information, not medical advice. The research cited studied these ingredients, not any finished product. These statements have not been evaluated by the FDA.