Benefits of PBM
Published on
October 24, 2024
Photobiomodulation and Hair Regrowth: A Ray of Hope for Hair

Photobiomodulation is currently one of the most promising approaches for stimulating hair regrowth in a non-invasive way. It works at the cellular level, without pain or side effects, by reactivating hair follicle activity using red and infrared light.
How does it work?
- Stimulation of the hair follicle through mitochondrial activation
- Increased blood flow to the scalp
- Local anti-inflammatory effect (very useful in cases of inflammatoryalopecia )
- Extension of the anagen phase (active growth phase)
- Slows hair loss by inhibiting DHT (indirectly)
Who is eligible?
- Men and women with androgenetic alopecia (hereditary hair loss)
- Postpartum or postpartum depression
- People who have undergone medical treatment
- In addition to a hair transplant or topical treatment
Frequency and duration
- 3 to 5 times a week (for at least 3 months)
- 10 to 20 minutes per session, depending on the device
- Visible improvements are often seen within 6 to 8 weeks
Recommended device: the Bioledtherapy LED cap
Comfortable, automated, and discreet, the Bioledtherapy LED cap is designed to stimulate the entire scalp using 200 red and infrared LEDs.
For hair care professionals
- Easy to incorporate into a medical treatment regimen (with PRP or minoxidil)
- Serial monitoring with trichoscopy or monthly photos
- No side effects, good patient compliance
- Of interest to transplant centers or cosmetic clinics
Practical Tips
- Always apply the product to clean, dry hair
- Do not use styling gel or hair oil before the session
- Choose a quiet time to optimize cell regeneration
Frequently Asked Questions
Does photobiomodulation really promote hair regrowth?
Yes, when used regularly, it stimulates the hair follicles, extends the growth phase, and slows hair loss, particularly in cases of androgenetic alopecia.
Is this suitable for women?
Yes, scalp PBM is suitable for both men and women, particularly during the postpartum period, perimenopause, or times of stress.
How long does it take to see the first results?
Generally, the first results are visible after 6 to 8 weeks, with more noticeable effects around 3 to 4 months.
Scientific sources cited
- Avci P. et al. (2014) – Low-level laser (light) therapy for the treatment of hair loss – PubMed
→ Comprehensive review of the effects of PBM on hair growth, including cases of androgenetic alopecia. - Lanzafame R.J. et al. (2013) – The growth of human scalp hair in females using red light laser therapy – PubMed
→ Study on women: significant improvement in density after 16 weeks. - Jimenez J.J. et al. (2014) – Efficacy and Safety of a Low-Level Laser Device in the Treatment of Male and Female Pattern Hair Loss – PubMed
→ Double-blind controlled trial demonstrating the efficacy of LED light in stimulating the hair follicle. - Gupta A.K. et al. (2022) – Photobiomodulation therapy for alopecia: an evidence-based review – PubMed
→ A recent review of the mechanisms and clinical outcomes of photobiomodulation for hair loss.
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