Photons penetrate scalp, are absorbed by cytochrome c oxidase in mitochondria, increasing
ATP, nitric oxide release and cellular proliferation in follicles.
Via FDA-cleared helmets, caps or combs delivering 5–10 mW/cm2 at therapeutic wavelengths;
sessions are 20 minutes long, multiple times per week.
Increased hair density, thickness and reduced shedding. Visible improvement typically after 3–6
months of consistent use.
Increased hair density, thickness and reduced shedding. Visible improvement typically after 3–6
months of consistent use.
No specific tests; assessment of hair loss pattern guides device selection. Scalp health
evaluation ensures no contraindications.