Does Red Light Therapy Help Regulate Blood Sugar?
Most people know red light therapy for skin, recovery, or hair growth. But new research shows it may also support blood sugar regulation. That opens up a whole new reason to add red light to your wellness routine.
What the Science Says
A 2024 study tested whether 670 nm red light could influence blood sugar.
- 30 participants
- Group 1: 15 minutes of 670 nm red light exposure
- Group 2: Same setup, but no light (placebo)
- Both groups then took a glucose test
Results:
- 27.7% lower average blood glucose
- 7.5% lower maximum glucose spikes
- 12.1% lower peak glucose
Just 15 minutes of red light had a measurable effect compared to placebo.
Why Red Light Affects Blood Sugar
Red light works by stimulating the mitochondria, your cells’ energy centers. When mitochondria are more efficient, they use glucose and oxygen better. That can translate into:
- Smoother post-meal blood sugar curves
- More stable energy levels
- Better overall metabolic health
What Wavelength Works Best?
The study focused on 670 nm red light. This wavelength is already known for its ability to activate mitochondria and support energy production.
How Often Should You Use It?
In the study, participants saw results after just one 15-minute session. For real-world use, red light therapy is usually applied several times per week to build consistent benefits.
Can Red Light Therapy Help with Diabetes or Prediabetes?
Early research is promising, but red light therapy is not a replacement for medical treatment. Instead, it may become a valuable supportive tool for managing glucose alongside diet, exercise, and healthcare guidance.
What This Means for You
Red light therapy is safe, non-invasive, and already trusted for skin, recovery, and hair growth. Now, research suggests it may also play a role in supporting healthy blood sugar.
At Red Glo Labs, our devices include the 670 nm wavelength studied in this research. That means you can explore the same science-backed benefits at home or in a clinic setting.
