Our Methodology

What “vetted” means here

We don’t use the words “tested,” “reviewed,” or “ranked” loosely. We use “vetted” because it’s honest about what we do: we evaluate products against objective criteria, verify manufacturer claims, and compare them to the alternatives. We don’t pretend to have personally used every $15,000 sauna we cover — nobody does. What we do is hold every product to the same standard, and tell you what we found.

Our 5-step process

Research. We pull the manufacturer’s specs, then cross-reference them against owner photos, independent measurements, and customer feedback across multiple platforms. If a brand’s spec sheet says one thing and 30 owners report another, we note the discrepancy.
Comparative analysis. Every product is graded relative to its category peers on the same criteria. A $200 portable sauna isn’t penalized for not having a 240V heater; a $7,000 cabin sauna is penalized if it doesn’t.
Hands-on, when feasible. For accessible price points we get hands-on time. For premium gear we rely on long-form owner reports, repeat-customer reviews, and direct conversations with brands. We’ll tell you which is which on every product page.
Verification. Every price, warranty length, included accessory, and return policy is checked against the manufacturer’s site before publication. We re-verify on a rolling basis.
Update. Specs and pricing change. We update product pages when we notice a change, when readers flag one, or on a quarterly sweep, whichever comes first. Every product page shows a “last updated” date.

Category-specific criteria

Cold plunge

Cooling capability. Built-in chiller vs ice-dependent. Minimum temperature reached. Time to cool from ambient.
Capacity. Water volume and the user height it accommodates.
Durability. Tub material, insulation, expected lifespan.
Maintenance. Filtration, ozone, or manual water changes.
Total cost. Sticker price plus electrical install, ongoing ice or electricity, and consumables.

Sauna

Heat type. Traditional electric, infrared (near/mid/far), or hybrid — with the use cases each serves.
Temperature and heat-up time. Peak operating temp and minutes to reach it.
Build. Wood species (cedar, hemlock, fir, spruce) and weather rating for outdoor units.
Electrical and install. Standard 120V vs dedicated 240V. Permit implications.
EMF for infrared units. Independent measurements or third-party certifications, not marketing claims.

Red light therapy

Irradiance. mW/cm² at a fixed distance — the single most important spec, and the most commonly inflated.
Wavelengths. Specific nanometer outputs (typically 630-670nm red, 810-850nm near-infrared).
Coverage. Treatment area. A targeted device and a full-body panel serve different jobs.
Build and warranty. LED count, expected lifespan, manufacturer warranty length.
EMF. Measured low-EMF builds vs unmeasured generic builds.

How we vet brands, not just products

A product spec sheet tells you what something does. A brand profile tells you whether the company behind it will still be there in three years to honor the warranty. Both matter, and at the mid-ticket price band, brand trust is often the heavier hesitation. At that price, the buyer’s friction is usually “is this company real, will the warranty hold,” not “is this the perfect spec.”

We carry a separate vetting layer for brands themselves, with shorter re-check cycles than product specs (brand-level facts go stale faster: acquisitions, warranty changes, support staff cuts). What we vet at the brand level:

Identity. Year founded, headquarters, publicly named founders, current ownership (independent, acquired, or a sub-brand of a larger group).
Manufacturing. Where products are actually made versus designed. OEM partnership versus vertical integration.
Warranty and returns. Per-category coverage terms, transferability on resale, return window, who pays return shipping. The legal-fine-print version of what the marketing page promises.
Trust signals. Independent third-party lab testing (EMF, VOC, electrical safety) with the lab named. Certifications with the issuing body. Press features with the publication and year.
Customer review aggregates. BBB, Trustpilot, and on-site review counts across platforms, surfaced together so a 13-review Trustpilot result isn’t mistaken for the full picture.
Gaps. What the brand doesn’t disclose. Anonymous founders, undisclosed manufacturing locations, missing certifications, short complaint histories on new BBB accreditations. Stated plainly.

Every brand we vet gets a page at /brands. The vetting is current as of the re-vet date stamped on each page. We re-check annually at minimum, and faster when an acquisition or warranty change lands.

What we don’t do

We don’t take payment for placements. No brand pays to be included, ranked higher, or written about favorably.
We don’t use marketing language as fact. “Medical-grade,” “clinical”, and “FDA-approved” mean something specific. We check whether they apply.
We don’t hide our hands-on limits. If we haven’t physically used a unit, we say so on the page.
We don’t game the SERP with thin content. Every page exists to answer a real question, not to capture a keyword.

How we make mistakes — and what to do about it

We get things wrong. Specs change without notice. Brands rebrand SKUs. We mislabel a feature. When you spot something, email us at hello@thewellvetted.com and we’ll fix it and update the “last updated” date. We’d rather be corrected fast than be wrong slowly.

Affiliate relationships and rank integrity

We earn commissions from some of the products we cover. The same product can pay different commission rates through different channels (Amazon versus direct-brand affiliate, for instance), and at the mid-ticket band you’ll see comparable products sitting side by side with different conversion paths and different commission economics.

Our rule: when two products doing the same job sit on the same page, the page tells you why it points where it points, and the reason has to be buyer-serving (warranty, support, returns), never “we earn more.” Channel and commission do not touch rank order. A product’s commission rate has zero weight in our picks. The full breakdown is on our affiliate disclosure page.