Is photobiomodulation dangerous?
Photobiomodulation (PBM) uses low-intensity red and near-infrared light to stimulate cells. It is a non-invasive technique, but a legitimate question arises before the first session: Is it dangerous?
In short: no, photobiomodulation is considered safe. It does not involve UV light or electromagnetic fields, is noninvasive, does not cause burns, and its side effects are rare and mild. It is still not recommended in certain situations—pregnancy (abdominal area), active cancer, photosensitive epilepsy, and photosensitizing medications—which you should be aware of before any session.
Why is photobiomodulation considered safe?
Unlike surgical lasers, PBM does not heat or destroy tissue: it stimulates cellular processes at the mitochondrial level. Three characteristics account for its safety profile:
- No UV radiation: The Body Boost Bed cabin Body Boost Bed all devices offered by Bioledtherapy guaranteed to be UV-free.
- No EMF (electromagnetic field) emissions.
- A non-invasive approach that involves no intrusive contact or injected substances.
PBM is currently used in healthcare facilities, includingthe public hospital in Valenciennes, as part of regulated protocols.
What Do Clinical Studies Say?
Photobiomodulation is the subject of an extensive body of scientific literature: hundreds of clinical trials in humans and several thousand publications have evaluated its efficacy and tolerability (pain, wound healing, supportive oncology, neurology, oral health). Tolerability is generally described as good, with rare and mild adverse effects. The main limitation identified by research is not safety, but the standardization of protocols: the real risk is underdosing or overdosing, which renders a session ineffective.
Possible Side Effects
They are rare and temporary: mild redness, a sensation of warmth, and occasionally fatigue or a brief tingling sensation, especially in cases of overdose. They disappear quickly and on their own. LED PBM does not have enough energy to cause a thermal burn, unlike UV lamps or poorly regulated lasers.
Contraindications to Be Aware Of
Photobiomodulation using the Body Boost Bed not recommended or requires medical advice in the following situations:
- pregnancy (avoid the abdominal area and lower back) and breastfeeding;
- photosensitive epilepsy or a history of photosensitivity;
- taking photosensitizing medications (see below);
- acute skin condition or recent sunburn;
- active cancer or a history of cancer, unless authorized by a healthcare professional;
- claustrophobia (regarding the cabin);
- a child under 7 years of age;
- User weight exceeding 135 kg.
Photosensitizing medications
Certain medications can increase sensitivity to light. If you take any of these regularly, consult your doctor or pharmacist before a session. This list is not exhaustive: tetracyclines and fluoroquinolones (antibiotics), retinoids (isotretinoin), certain NSAIDs and diuretics, and St. John’s wort. For more details, see our contraindications page.
What is not a contraindication
- Dark skin: PBM is safe and effective for all skin types.
- Tattooed skin: no contraindications; a gradual increase in dosage is recommended.
- Metal implants, pacemakers: LED light does not affect standard implants.
Overdose: Why “More” Isn’t “Better”
Exceeding the effective dose does not increase the benefits; on the contrary, an overdose tends to negate the beneficial effect (biphasic response). Recommendations advise against exceeding 21 joules/cm² over a consecutive period of 31 days. Estimate the appropriate dose using our dosimetry calculator.
Is it dangerous for the eyes?
Red and near-infrared light do not pose the same risks as UV light, but direct and prolonged exposure of the eye to a powerful light source should be avoided: keep your eyes closed or wear eye protection during the session. If you have a retinal condition (age-related macular degeneration, retinitis pigmentosa), avoid exposure around the eyes and seek medical advice.
Frequently Asked Questions
Is photobiomodulation dangerous?
No. It is a non-invasive technique that uses neither UV light nor EMF, and is considered well-tolerated according to the scientific literature. Adverse effects are rare and mild, but there are contraindications that must be observed.
Can photobiomodulation cause burns?
No. LED PBM does not have enough energy to cause a thermal burn, unlike UV lamps or unregulated lasers.
What are the side effects?
Rare and temporary: mild redness, a sensation of warmth, and occasionally fatigue or tingling in the event of an overdose. These symptoms resolve on their own.
Can you undergo PBM after an injection (Botox, hyaluronic acid)?
Yes, wait 24 to 48 hours after the injection. PBM can then promote regeneration.
What are the contraindications?
Pregnancy (abdominal area) and breastfeeding, photosensitive epilepsy, photosensitizing medications, acute skin disease, active cancer (unless medically approved), claustrophobia, children under 7 years of age, weight over 135 kg.
Is there UV radiation or electromagnetic waves?
No. Bioledtherapy devices Bioledtherapy guaranteed to be UV-free and EMF-free.
Is it possible to do too much photobiomodulation?
Yes, and it's counterproductive: overexposure negates the benefits (biphasic response). Do not exceed 21 J/cm² over 31 consecutive days.
Scientific sources
- Hamblin, M.R. (2017). Mechanisms and doses for photobiomodulation therapy. PubMed
- by Freitas L.F., Hamblin M.R. (2016). Mechanisms of photobiomodulation therapy. PubMed
- Avci P. et al. (2013). Low-level laser therapy and photobiomodulation in the skin. PubMed
See also
Our guides
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