PBM cerebral photobiomodulation
810-1,064 nm infrared transcranial light · activates cytochrome c oxidase + cerebral mitochondrial ATP · Hamblin canon · Vielight + Neuralium · neurodegeneration + cognition.
What is cerebral PBM?
Transcranial photobiomodulation · LEDs 810-1,064 nm penetrate skull 1-2 cm · activate mitochondrial cytochrome c oxidase · increased local cerebral ATP.
Vielight Neuro Pro / Neuralium Brain · headsets with NIR LEDs 810 nm/1,064 nm targeted at specific cortical zones (default mode network + prefrontal cortex). Penetrate skull + meninges 1-2 cm cerebral tissue.
Hamblin canon mechanism: cytochrome c oxidase (complex IV respiratory chain) absorbs NIR → cerebral ATP +20% local · releases local NO + reduces neuroglial inflammation.
Emerging evidence: Saltmarche 2017 dementia cognitive function RCT n=10 · ADAS-Cog +12 points. Cassano 2019 depression n=30 · HAM-D −7 points vs sham.
NIR cranial penetration
810 nm light penetrates scalp+skull+meninges combination best up to 1-2 cm cerebral tissue.
Cerebral mitochondrial complex IV cytochrome c oxidase absorbs + releases electrons → local ATP synthesis +20%.
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Clinical evidence
3 RCTs · cognition + depression + brain injury.
| Study | Finding | Hallmarks | DOI |
|---|---|---|---|
| Saltmarche 2017 Photomedn=10 dementia · 12 wk | Transcranial PBM → ADAS-Cog +12 points cognition. | Mito | Internal analysis · PubMed ↗ |
| Cassano 2019 J Clin Psychn=30 depression | Prefrontal cortex PBM → HAM-D −7 points vs sham. | Comm | Internal analysis · PubMed ↗ |
| Hamblin 2018 BBA Clin reviewMechanism review | Cytochrome c oxidase mechanism validated 100+ studies · NIR activates mitochondrial complex IV. | Mito | Internal analysis · PubMed ↗ |
Protocol · 20 min · 3-5×/wk
PBM requires accumulated dose 4-12 weeks.
Adaptation
Start low dose · Vielight headset default settings.
Maintenance
PM session · NOT hours pre-bed (alertness effect). Cassano protocol.
Headset vs panel
2 form factors.
Verified brands
3 top manufacturers.
Pros: Neuro Pro/Gamma · Saltmarche RCT canon · €1,000-2,000.
Premium subscription · USA brand.
Pros: Brain headset · €800-1,500 · Europe distribution.
Newer brand · emerging evidence.
Coming soonPros: NIR helmet · €500-800 · 3y warranty.
NO targeted DMN zones.
Coming soonSupervised cerebral PBM in 3 clinics Spain · €100-200
Neurological evaluation + supervised PBM · indicated if documented dementia / depression / TBI.
How to measure cognition
Cognitive batteries + subjective.
MoCA cognitive battery. 0-30 score · expect +2-4 baseline points after 12 wk (Saltmarche).
AM energy / mood 1-10. Subjective rating · expect +1-2 baseline after 4-6 wk.
Wearable sleep quality. PBM side effect · deep sleep +5-10 min in some users.
Contraindications
Epilepsy + recent brain surgery.
- Active epilepsy: Cerebral NIR may precipitate seizure · prior neurologist.
- Recent brain surgery: Wait 12 wk post-craniotomy / DBS implant.
- Pregnancy: No fetal cerebral data · avoid.
- Photosensitizing medication: Some antidepressants + retinoids increase NIR sensitivity · consult.
Synergies
3 neuro stack.
Wearable objective response tracking · nocturnal HRV + post-PBM sleep quality.
NMN 500-1,000 mg + PBM · NAD+ pathway potentiates mitochondrial response.
1 g + PBM · NGF + cerebral ATP · dual neurotrophin stack.
FAQ
3 questions.
Vielight vs Mito Red?
Vielight: DMN-targeted Saltmarche/Cassano RCT canon. Mito Red: entry NIR functional 70% benefit at 30% price. For serious: Vielight.
How long?
Subjective: 2-3 wk. MoCA cognitive: 12 wk (Saltmarche). HAM-D depression: 6 wk (Cassano).
AM or PM better?
PM 1-2 hours before bed. AM may cause over-alertness in some. Cassano protocol PM.
Is PBM cerebral photobiomodulation a pillar of your protocol?
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