Red / near-infrared light (PBM)
- Mechanism
- Red (630–670nm) and near-infrared (810–850nm) light is absorbed by cytochrome c oxidase in the mitochondria, stimulating ATP production and reducing oxidative stress. This enhances cellular energy, promotes collagen synthesis, and modulates inflammatory pathways. Near-infrared penetrates deeper (muscles, joints, thyroid).
- What you get
- Skin quality improvement (collagen synthesis, reduced wrinkles)
- Joint and muscle pain reduction
- Thyroid support (NIR over the thyroid area — emerging evidence)
- Improved sleep when used in the morning (circadian signalling)
- Reduced inflammation
- May support hair thickness
- Evidence
- ●●●●● Emerging — strong for skin/joints, weak for hormonal claims
Skin and collagen benefits have reasonable clinical support. Joint inflammation reduction is supported. Thyroid support has a few small studies showing promise. Direct hormonal or menopausal symptom relief has minimal specific evidence. Consider this a useful adjunct, not a primary intervention. - Protocol
- Morning use supports circadian rhythm. 10–20 minutes at 6–12 inches from a quality panel. Face and neck for skin. Joints for pain. Lower abdomen for pelvic health (early research). Don't use red light close to bedtime — it can be mildly stimulating.
- Timeline
- Skin: 4–8 weeks. Joint pain: 2–4 weeks. Other effects: 6–12 weeks of consistent use.