Evidence and product data

Understand the evidence, limits, and product data.

Published research provides category context. It does not prove the performance, safety, or outcome of a specific home device.

View evidence library Compare devices

Independent research

Context, not product proof

Sources below explain concepts and boundaries; they are not KREXBODY-sponsored studies.

Product specifications

Source review in progress

Catalog fields must be matched to exact model documentation before final approval.

Safety and manuals

Product-specific guidance required

General education never replaces the manual and warnings supplied with a device.

Content record

Category education

Maintained by KREXBODY product education. Last reviewed July 29, 2026. This is not presented as independent expert or medical review.

Source selection

Named context and exact-model proof

Named external sources support category concepts. Product facts require documents that can be matched to the exact model; supplier copy or a related model is not enough.

Evidence boundary

What this page cannot prove

This page does not establish the performance, safety, outcome, suitability, approval, testing, or certification status of a specific catalog product.

Change note · July 29, 2026: Added a visible editorial-transparency summary and clarified the source-selection boundary. No product claim or commercial term was added.

How to read research

The settings are part of the evidence.

Wavelength alone is not enough to compare a study with a product. Irradiance, energy dose, distance, exposure time, treatment area, schedule, study population, controls, and outcome measures can all change what a result means. A source should be read with those parameters and its limitations visible. Start with What Is Red Light Therapy?, then review 660nm, 850nm, and wavelength limits.

Evidence library

Sources for context and boundaries.

These links are provided for education. Inclusion does not mean a KREXBODY product was used, tested, cleared, certified, or proven by the source.

Peer-reviewed review · 2012

The nuts and bolts of low-level laser (light) therapy

Helps explain why wavelength, power density, energy density, timing, and tissue context matter when interpreting photobiomodulation research.

Read the PubMed record →

Limit

A broad scientific review is not evidence that any specific consumer device produces a particular result.

Peer-reviewed review · 2017

Mechanisms and applications of the anti-inflammatory effects of photobiomodulation

Reviews proposed biological mechanisms and research across different experimental and clinical contexts.

Read the PubMed record →

Limit

Mechanistic and mixed-context literature cannot be translated into a guaranteed consumer outcome or a product claim.

Regulatory guidance

FDA General Wellness: Policy for Low Risk Devices

Provides a framework for distinguishing low-risk general wellness positioning from claims associated with diagnosis, cure, mitigation, prevention, or treatment of disease.

Read FDA guidance →

Limit

The guidance is not FDA approval, clearance, certification, or endorsement of KREXBODY or any catalog product.

International standard

IEC 62471: Photobiological safety of lamps and lamp systems

Describes a technical framework used to assess photobiological hazards from lamp and lamp-system exposure.

View the IEC standard record →

Limit

Referencing a standard does not mean a KREXBODY product has been tested to it. A traceable report for the exact model is required.

Product-data method

How catalog information is verified.

KREXBODY uses a source-first review. If an exact model, document, or result cannot be traced, the field stays under review rather than being treated as confirmed. See KREXBODY’s exact-model review process for the broader catalog publication boundary.

Collect exact-model documents

Use the manual, model label, specification sheet, packaging, and traceable reports for the exact item.

Match the catalog fields

Check wavelengths, dimensions, controls, included items, power information, warnings, and intended setup.

Separate claims from evidence

Do not convert supplier copy, category research, or a standard reference into an unsupported product promise.

Publish status and date

Mark unknown fields as not yet verified and update the record when stronger documentation is available.

Catalog price	Current catalog prices follow the reviewed pricing plan; they do not confirm stock or order acceptance.
Online availability	Ordering and payment are temporarily unavailable.
Product manuals	Exact-model manuals are required before product-specific use guidance is treated as complete.
Testing and certification	Only traceable exact-model documents should be published; no site-wide certification claim is made.

Science FAQ

Questions to keep visible.

Does published research prove a catalog product works?

No. Research findings depend on the tested device, settings, population, protocol, and outcome. A separate exact-product evidence trail is needed.

Are 660 nm and 850 nm always the correct settings?

No single wavelength or combination is universally correct. Confirm the exact product specification and follow its manual.

Does mentioning FDA guidance or IEC 62471 mean a product is approved or certified?

No. A guidance document or standard reference is not product approval, clearance, certification, testing, or endorsement.

Where should I start before using a device?

Read the exact-model product manual and Safety & Usage. If the correct document is unavailable, send a document request. Ask a qualified professional when personal circumstances or product warnings indicate that you should.