Red Light Therapy: Anti-Aging Skin Therapy or Snake Oil Tricks?
Physionic
Jul 15, 2024
Mindsip insights from this episode:
Utilize red light therapy to enhance collagen and reduce wrinkles
Studies suggest red light therapy can reduce wrinkle volume by over 30% and increase skin collagen density, which provides structural support to the skin.
Question red light therapy evidence due to industry funding
The evidence for red light therapy should be viewed with suspicion as all the reviewed studies were funded by industry, with one researcher even being the CEO of the company selling the device.
Utilize split-face study design for effective light wavelength comparison
One study used a simple and clever design by splitting a participant's face in two, applying different light wavelengths like red and amber to each side for direct comparison.
Reevaluate red light therapy for skin hydration issues
Contrary to its supposed benefits, one study found that red light therapy actually worsened skin hydration, dropping it from 82 units to 77 units.
Address absence of control groups in red light therapy research
A major weakness in much of the research on red light therapy is the complete absence of a control or placebo group, making it difficult to validate the results.
Critique red light therapy studies for flawed statistical methods
Some red light therapy studies use improper statistical tests, like a T-test for multiple comparisons, which increases the odds of finding a positive effect when one doesn't actually exist.
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