Science

Can red light therapy help with back pain? A review of clinical trials for lower back pain, herniated discs, and chronic pain — plus optimal protocols.

Evidence-based guide to red light therapy for muscle recovery — what the research shows, when to use it, and how athletes can integrate it into training.

Does red light therapy increase testosterone? A review of the evidence — animal studies, human data, mechanisms, and practical protocols for men interested in hormonal health.

Can red light therapy improve sleep quality? A look at the science — melatonin, circadian rhythm, and what the research shows about using red light at night.

Does red light therapy help with joint pain and arthritis? A review of clinical evidence, optimal protocols, and what conditions respond best.

Does red light therapy regrow hair? An evidence-based review of clinical trials, FDA clearance, optimal protocols, and which devices work best for hair loss.

An evidence-based look at red light therapy for skin health — collagen production, wrinkles, acne, and anti-aging. What the clinical research actually shows.

There are no industry standards for how irradiance is measured in red light therapy. Here’s what the numbers on spec sheets actually mean — and how to evaluate them.