Red light therapy (RLT) is generally considered safe and non-invasive, but like any treatment, it may have mild side effects—especially if used incorrectly. Here’s what you should know before starting.
Possible Side Effects of At-Home RLT
1. Mild Eye Strain or Discomfort
⚠ Why? Bright red/NIR light can irritate unprotected eyes.
✅ Fix: Wear protective goggles (many devices include them).
2. Temporary Redness or Sensitivity
⚠ Why? Some skin types react to heat or light exposure.
✅ Fix: Start with short sessions (3–5 mins) and increase gradually.
3. Dryness or Tightness
⚠ Why? Light therapy may temporarily reduce skin moisture.
✅ Fix: Apply aloe vera or a gentle moisturizer post-treatment.
4. Headaches (Rare)
⚠ Why? Some users report mild headaches after long sessions.
✅ Fix: Reduce exposure time and stay hydrated.
5. Hyperpigmentation (Very Rare)
⚠ Why? Incorrect use (e.g., too much heat or wrong wavelengths) may darken skin in rare cases.
✅ Fix: Stick to 630–660nm (red) or 810–850nm (NIR) and avoid overuse.
How to Minimize Risks
✔ Follow device instructions (distance, time, frequency).
✔ Patch test first (try a small area for 1–2 sessions).
✔ Avoid overuse (more ≠ better—stick to 10–20 mins/session).
✔ Skip if photosensitive (e.g., lupus, certain medications).
The Bottom Line
Most users experience no side effects, but listening to your body is key. When used properly, at-home RLT is a safe, effective way to improve skin, pain, and recovery!
