The Cognitive Review assesses focus and cognition products by what their labels actually say — which form of each active, whether every amount is printed, and whether a standardisation percentage is stated. Everything we score can be checked by anyone holding the pack.
Rankings
We read every panel from the manufacturer's own published label, price each product from its own shopping page, and score on criteria stated before the first product appears. The source and the date it was read are printed under every table.
- 9 B12 Supplements Ranked: Form, Amount, and Who Actually Needs Which
- 8 L-Theanine Supplements Ranked on Dose, Form and What the Label States
- 7 Pre-Built Focus Stacks Ranked on What's Actually in Them
- 9 Lion's Mane Supplements Ranked: Fruiting Body, Beta-Glucans, and What Most Labels Leave Out
- 8 Alpha-GPC Supplements Ranked on Form, Dose Disclosure and What the Label Tells You
- Six focus-supplement categories compared — and the three things worth checking before buying
Head to head
Forms and formats, compared on what is printed on each label.
Reader guides
What people describe, what has actually been measured, and where the evidence runs out.
- Five Reasons Words Go Missing Mid-Sentence — And What Has Actually Been Measured
- What Changes in Attention and Word-Finding After Fifty — and What Is Worth an Appointment
- Focus Without More Caffeine: What the Fourth Cup Is Actually Doing
- What Happens to Mental Stamina Between 2pm and 6pm
- Why the Same Paragraph Gets Read Three Times
- Five reasons the afternoon slump keeps coming back, no matter what people try
- What “brain fog” usually means — and why 60,500 people a month search it
Explainers
One ingredient or one idea, explained from the research up.
- How to Read a Certificate of Analysis, Section by Section
- What the Choline Research Actually Measured, and In Whom
- The One Number That Separates Mushroom Supplements
- What “Third-Party Tested” Actually Means
- Most choline supplements don’t use the form the research used. The label tells you in one word.
- Our grandparents ate it every day. Most Americans now fall short.
The Cognitive Review is published by Weal Supplements. The desk scores labels; the company sells one — Weal Focus, five actives with every amount printed. The rankings above score it alongside everything else, on the same factors — and they do not put it first on all of them.