editorial methodology
How We Review
Our editorial methodology — how we research, evaluate, and write about brain health products and topics.
Last updated: September 10, 2026
Sharp Brain Lab exists to help people make better decisions about their brain health, sleep, memory, and focus — decisions worth getting right. This page explains, in plain terms, how our content actually gets made: how we choose what to research, how we evaluate products, how we use evidence, and how our affiliate relationships work. We publish it because trust has to be earned with specifics, not just claimed in a tagline.
How We Research Topics
Every guide starts with a real question people are asking — about a symptom (brain fog, tinnitus, poor sleep), a goal (better focus, sharper memory), or a specific product. We research using peer-reviewed literature (PubMed and similar databases), meta-analyses where available, established clinical and public-health resources, and — where relevant — the professional or geographic context our readers are asking about. We look for convergent evidence across multiple sources rather than relying on a single study, and we favor meta-analyses and systematic reviews over individual trials wherever they exist. Every article discloses its source basis in a "This content is based on information from" section, and cites the specific studies used in a numbered References list at the end.
How We Evaluate Products
For any product we review or recommend — whether an audio program, a supplement, or another format — we look at what it actually claims to do, whether that claim has a plausible and evidence-backed mechanism, who the company behind it is, what real customer feedback (not just curated testimonials) suggests, and what its refund or guarantee policy actually covers. We test specific marketing claims against what we can independently verify. When we can't verify a claim — for example, a vendor's reference to an unnamed third-party study — we say so explicitly and exclude it from how we describe the product, rather than repeating it uncritically.
How We Use Evidence and References
We distinguish between mechanisms that are well-established in the scientific literature (for example, the role of Theta brain-wave states in memory consolidation, or the effect of blue light on melatonin) and claims about a specific product's real-world effectiveness, which is usually far less directly studied. Where a product uses an evidence-backed ingredient or technology, we explain what the underlying research actually shows — and its limits — rather than implying that general category evidence proves the specific product works exactly as advertised. Every substantive claim of this kind is backed by a citation our readers can check for themselves.
Manufacturer Claims vs. Independent Evidence
Vendor sales pages are a starting point, never a source. When a manufacturer cites a statistic, an institution, or a study, we attempt to verify it against a primary or otherwise independently checkable source before repeating it. If we can't verify a claim, we remove it from our own description of the product and note that it appears to be unverified marketing language — this has happened, for example, with a vendor's reference to unspecified "NASA research," which we investigated, could not independently confirm, and now explicitly flag as unverified rather than pass along as fact.
How We Select Products to Review
We prioritize products that map to problems our readers already have — memory, focus, sleep, tinnitus — over products chosen because they pay a higher commission. We look for a plausible, evidence-informed mechanism, a legitimate company behind the product (verifiable contact information, an operating history, a real refund process), and terms that are fair to the buyer, including how long a money-back guarantee actually lasts. Products that fail these checks are not recommended, regardless of commission terms.
How Affiliate Relationships Work
Sharp Brain Lab is reader-supported. Many of our articles contain affiliate links, and if you make a purchase through one, we may earn a commission at no additional cost to you — this is disclosed on relevant articles and in our Affiliate Disclosure. Commission structure does not determine our conclusions: our recommendations, comparisons, and "who this is (and isn't) a good fit for" guidance are written independently of which product pays more. We retain full editorial freedom to conclude that a product is not a good fit for a given reader, to recommend a competing product instead, or to state plainly that a product's marketing claims outrun its evidence — as we have done in our own honest-review and "is it a scam" style coverage.
Criteria Used in Comparisons
When we compare two or more products, we use the same criteria across all of them: what specific problem each is designed to solve, the strength of evidence behind its core mechanism, who it's genuinely best suited for (age range, use case, professional context), price and what that price includes, the length and terms of the money-back guarantee, and how quickly users typically report results. We aim to make the actual trade-offs clear — including cases where the honest answer is "it depends on your specific situation" rather than a single universal winner.
How Content Gets Revised and Updated
Published articles are not static. We revisit content when the underlying evidence changes, when a product's formulation, pricing, or guarantee terms change, when we identify an error or an unverifiable claim that needs correcting, or simply as part of routine review to keep information current. Articles display a "Last updated" date, and structural or factual corrections are made directly to the live article rather than only in new posts.
Editorial Independence
Our editorial team makes content and recommendation decisions independently of advertising or affiliate revenue considerations. No sponsor, vendor, or affiliate partner reviews or approves our content before publication, and none has the ability to require a specific conclusion, rating, or recommendation. Where evidence is limited, we say so rather than overstating certainty. Where a product isn't a good fit for a given reader, or isn't a good product at all, we say that too. This independence is what makes our recommendations worth reading in the first place — and it's a standard we hold ourselves to on every article, not just this one.
This page complements, and does not replace, our About page, our affiliate disclosure (included on relevant articles), and our Privacy Policy.