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Trial, not randomized · measured the question itself

Trial without a comparison group in 31 people: 81% reported big eye-area wrinkle improvement

Russell and colleagues · Journal of cosmetic and laser therapy · 2005

Original title: A study to determine the efficacy of combination LED light therapy (633 nm and 830 nm) in facial skin rejuvenation.

Under review. A person has not yet checked this summary against the paper. It is written from the PubMed abstract. Until a person checks it, search engines are asked not to list this page.

What the study found

Points to benefit

Skin surface roughness measures changed at week 12. 52% of people had a 25%-50% improvement in photoaging scores. 81% reported a big improvement in eye-area wrinkles.

The study at a glance

Type of study
Trial, not randomized
Who or what was studied
31 people · 31 people with facial wrinkles
What was tested
9 treatments with red (633 nm) plus near-infrared (830 nm) LED light using the Omnilux system; no comparison group
What it measured
The question itself: wrinkles and skin aging
How long
12 weeks
Who has a stake
No disclosure in PubMed
No disclosure in PubMed; the device is a branded commercial system (Omnilux).
Journal
Journal of cosmetic and laser therapy, 2005
Source
PubMed record 16414908. This page is based on the abstract only.

How much this study counts

  • –Not randomized: the groups may differ in ways that affect the result.
  • –No comparison group: some changes might have happened anyway.
  • –Small: 31 people. Small trials can miss real effects or find chance ones.
  • •Lasted 12 weeks.
  • ✓Measured the question itself: wrinkles and skin aging.
  • •The PubMed record has no conflict-of-interest statement.
  • •Summarized from the PubMed abstract only. The full paper may hold details the abstract leaves out.

✓ Strength– Limit• Note

These points come from fixed rules about the type of study, its size and length, what it measured, and who has a stake. Every study on Digestery gets the same rules.

Where this study sits

Each dot is one on-topic paper on this question. Steps near the top answer the question more directly.

↑ Stronger evidence

  1. Trials in people: wrinkles and skin aging

    6

    5 benefit, 1 mixed

    ↑ This study is the ringed dot

  2. Trials in people: other measures

    0

    None among the papers we read.

  3. Trials in people: lab tests or safety

    0

    None among the papers we read.

  4. Population studies

    0

    None among the papers we read.

  5. Blood levels and genes

    0

    None among the papers we read.

↓ Weaker evidence

  • Points to benefit
  • Mixed
  • No difference
  • No direction
  • Points to harm

How it fits with the other research

The short answer to “Does red light therapy work for skin?”

Maybe a little; trials are small.

Confidence: low. Based on 7 on-topic papers.

Read the full answer

Of the other 5 papers on the same step: 4 benefit, 1 mixed. This one found benefit. It agrees with most of them.

Other papers on the same step

See all 7 studies on this question

How this page was made

Label

First read of the abstract
Claude Sonnet
Independent second read
Claude Haiku
Differences settled
The two reads agreed on every checked field. Claude Opus 5.5.
Headline
Claude Sonnet, from the checked study record. A script checked its numbers and wording.
Numbers
Checked against the abstract by a script
“How much this study counts”
Fixed rules, the same for every study
Source check by a person
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