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Blog: Guides, Science and Evidence Updates

Every article on the index, newest first. 200 articles.

Flow diagram of a 2024 meta-analysis on photobiomodulation added to basic periodontal therapy, from 947 references to 13 studies in the pooled analysis
EvidenceOctober 30, 2026

Photobiomodulation for Periodontitis: Dental-Office Evidence

Evidence grade Moderate for photobiomodulation added to basic periodontal therapy in a clinic, from a 2024 meta-analysis, and what it means for home panels.

Bar chart of Vellgus Pro and four price-matched panels with each panel's irradiance label
GuidesOctober 29, 2026

Vellgus Alternatives Compared: Price-Matched Panels

Four panels to weigh against a Vellgus Pro, matched on price, with wavelength mix, irradiance method, warranty and return terms from the database.

Rouge Pro G4 red light therapy panel product photo
GuidesOctober 29, 2026

Rouge Alternatives Compared: Price-Matched Panels

Four panels to weigh against a Rouge Pro G4, matched on price, with wavelength mix, irradiance method, warranty and return terms from the database.

Two boxes summarizing the MASCC/ISOO guideline review and the tumor safety review on oral mucositis
EvidenceOctober 29, 2026

Photobiomodulation for Oral Mucositis: Clinic Evidence

Evidence grade Strong for supervised clinic use in cancer care, from the MASCC/ISOO review, with what it does and does not say about home panels.

Trial map of a five-patient dementia case series and a 40-person healthy-adult laser trial of near-infrared light
EvidenceOctober 29, 2026

Red and NIR Light for Cognition and Dementia: Case Series Only

Grade Insufficient. A five-person dementia case series, a 40-person 1064nm laser trial in healthy adults and a narrative review, and what a home panel is not known to do.

Diagram showing no home-panel pet trials in the register, with clinic laser, eye safety and heat rows
GuidesOctober 28, 2026

Red Light Therapy for Dogs and Pets: What Owners Know

Veterinary light therapy is a clinic practice, and no home-panel pet trial is in the register. What that means, plus the eye and heat cautions.

Bar chart of pooled limb volume change in mL from a 2015 meta-analysis of low-level laser for lymphedema
EvidenceOctober 28, 2026

Red Light Therapy for Breast Cancer Lymphedema

One 2015 meta-analysis of laser therapy for breast cancer-related lymphedema, what clinics used, and why a home panel is a question for oncology.

Diagram listing what the evidence covers, with adult trials reviewed and no home-panel trials found in children or teens
GuidesOctober 28, 2026

Red Light Therapy for Kids and Teens: Safety First

No trial has tested home red light panels in children, so no safe dose exists. What that means, the eye and heat cautions, and what to ask a pediatrician.

Design diagram of the 2013 cellulite trial showing 34 laser and 34 sham participants, 532nm green diodes, three sessions over two weeks and a six-week follow-up
EvidenceOctober 28, 2026

Red Light Therapy for Cellulite: Limited Evidence

One sham-controlled trial of a 532nm green laser reported cellulite stage improvement. What it measured, what it did not, and what it means for a home panel.

RLT Home Total Spectrum COMPACT red light therapy panel, the top-ranked model on the wavelength-density criteria used for this list
BestOctober 27, 2026

Best Red Light Panels for Psoriasis and Skin Conditions

Panels ranked on database fields for people asking about psoriasis, using the one small 633nm plus 830nm trial as the reference. UV phototherapy is the clinic standard.

Bar chart of lux produced by 1 mW/cm2 of light at 555, 630, 660, 670, 700, 750 and 780 nanometers on a log scale
ScienceOctober 27, 2026

Lux vs mW/cm2: Why Lux Misreads a Red Light Panel

Lux weights light by eye sensitivity, mW/cm2 counts power. Worked examples show why near-infrared reads near zero in lux and why the units do not convert.

Product photo of the RLT Home Total Spectrum MAX panel
BestOctober 27, 2026

Best Red Light Panels for a Home Gym

Five panels ranked for a home gym on mounting, standing coverage, method-labeled irradiance, price with date, and warranty and return terms.

Design diagram of the 1999 Schindl trial: 50 patients, laser versus sham, 690nm daily for two weeks, 52 weeks of follow-up, with median recurrence-free time of 37.5 versus 3 weeks
EvidenceOctober 27, 2026

Red Light Therapy for Cold Sores: Limited Evidence

Grade Limited. One 1999 sham-controlled laser trial reported longer recurrence-free time, and no home panel trial exists. What it tested and what is unknown.

Bar chart of stated warranty terms for five brands, all covering the original purchaser only
GuidesOctober 26, 2026

Used and Refurbished Red Light Panels: Buyer's Guide

Warranty terms usually stop at the original purchaser. What that means for a used panel, what to measure on arrival, and which return policies exclude refurbished units.

Design summary of a 2020 meta-analysis: two randomized trials, 106 participants, outcomes pain, function and radiographic healing
EvidenceOctober 26, 2026

Study Review: Light Therapy for Fractures, 2020 Meta-Analysis

A 2020 meta-analysis pooled two placebo-controlled fracture trials. What it asked, what it found, why certainty stayed low, and the gap to a home panel.

Ladder diagram of the four IEC 62471 risk groups from Risk Group 0 to Risk Group 3 with the four hazard bands listed beside it
ScienceOctober 26, 2026

Photobiological Safety (IEC 62471): What It Covers

What the IEC 62471 eye-safety standard measures, how its four risk groups work, and why no panel brand in the database publishes a classification.

Diagram of the fracture photobiomodulation evidence base: two randomized trials, 106 participants, outcomes pain, function and radiographic healing
EvidenceOctober 26, 2026

Red Light Therapy and Bone Healing: Limited Evidence

Grade Limited. One 2020 meta-analysis of two placebo-controlled fracture trials reported small pain and function signals and no radiographic difference.

Summary cards of a Cochrane review of laser therapy in rheumatoid arthritis: five trials, 222 patients, and the pain, stiffness and flexibility results
EvidenceOctober 25, 2026

Red Light for Rheumatoid Arthritis: The Cochrane Review

A Cochrane review of placebo-controlled laser trials in rheumatoid arthritis reported short-term pain and stiffness changes. Grade Limited. Here is what it covers.

Schematic comparing a broad incandescent emission curve with the narrow 660 nm and 850 nm peaks of an LED panel
GuidesOctober 25, 2026

Red Light Panel vs Infrared Heat Lamp: Not Interchangeable

A heat lamp makes broad-spectrum warmth with a red glow. A panel makes narrow bands at stated irradiance. Here is what differs and when each makes sense.

Table-style diagram showing which pulse and control fields three panel listings publish
BestOctober 25, 2026

Best Red Light Panels with Pulsing Modes and App Control

Panels whose database listings publish pulse modes and control features, ranked on listed fields, plus what the evidence says about pulsing and apps.

Curve of photon energy in electron volts falling as wavelength rises from 280 to 1100 nm, with common panel wavelengths marked
ScienceOctober 25, 2026

Photon Energy and Wavelength: Why NIR Photons Carry Less

Photon energy falls as wavelength rises. Here is the simple formula, worked values for common panel wavelengths, and why more energy per photon is not the goal.

Trial map comparing a 2018 meta-analysis of laser therapy for jaw pain with a 2025 1064nm laser trial, showing design, light source and gaps
EvidenceOctober 24, 2026

Red Light Therapy for TMJ Pain: The Evidence

TMJ pain and light therapy graded Moderate for clinic lasers and Insufficient for home panels, with the 2018 meta-analysis and a 2025 1064nm trial.

Trial map of a 36-person randomized comparison of botulinum toxin A and low-level laser in chronic migraine
EvidenceOctober 24, 2026

Red Light Therapy for Migraine: What Exists

Migraine evidence grade is Insufficient. One small trial compared laser with botulinum toxin A; no sham-controlled panel trial exists.

Schematic of an integrating sphere with a panel inside, a baffle, a detector port and a spectrometer reporting total radiant flux
ScienceOctober 24, 2026

Integrating Spheres and Lab Testing of LED Panels

How an integrating sphere measures a panel's total radiant flux, why that differs from a spot irradiance reading, and what a proper test report shows.