Thérapie par la lumière rouge (RLT), également connu sous le nom low-level light therapy (LLT) ou photobiomodulation, is widely considered safe and non-invasive. Cependant, like any treatment, there are some potential side effects and precautions you should be aware of.
Effets secondaires communs
Most side effects are mild and temporary:
- Skin Redness or Warmth
- Some users notice mild pinkness or warmth in the treated area.
- Typically resolves within a few hours.
- Eye Strain or Discomfort
- Direct exposure to bright red or near-infrared light can irritate the eyes.
- Use protective goggles during treatment, especially with high-intensity panels or beds.
- Dry Skin or Flakiness
- Red light may slightly increase skin cell turnover, which can cause temporary dryness.
- Moisturize after treatment to prevent irritation.
- Mild Headache
- Rare, but can occur if light exposure is too intense or sessions are too long.
- Temporary Worsening of Acne or Skin Conditions
- Some people experience initial purging as skin renews itself.
Rare or Severe Side Effects
La luminothérapie rouge est généralement sûre, but caution is advised for certain groups:
- Photosensitive individuals: People on medications that increase light sensitivity (Par exemple, certains antibiotiques, acne medications, or chemotherapy drugs) may experience burning or irritation.
- Skin disorders: Conditions like lupus or porphyria may react badly to light therapy.
- Pregnancy: Limited research — consult a doctor before use.
No evidence suggests that RLT causes DNA damage, cancer, or long-term skin damage — unlike UV tanning.
Tips to Minimize Side Effects
- Follow manufacturer guidelines on distance, durée, and frequency.
- Start with shorter sessions (5–10 minutes) and gradually increase.
- Avoid direct eye exposure — use protective goggles.
- Moisturize skin before and after treatment.
- Consult a healthcare provider if you take photosensitive medications or have medical conditions.
Bottom Line
La thérapie par la lumière rouge est généralement sûr, non-invasif, and well-tolerated, with side effects usually being mild, temporary, and manageable.
Most common issues are skin redness, warmth, lourdeur, or slight dryness, which can be minimized by proper use and protective measures.
Professional devices like MERICAN red light therapy panels or beds are designed to deliver safe, controlled doses of red and near-infrared light, reducing the risk of side effects while maximizing benefits for peau, muscle, articulations, et le bien-être général.
