Wavelength-Dependent Photobiomodulation Regulates Macrophage Polarization via Mitochondrial Dynamics and Metabolic Reprogramming

What the authors concluded

In both in vitro and in vivo wound healing models, 850-nm light enhances fatty acid oxidation and lipid droplet-mitochondria interactions, driving anti-inflammatory M2 polarization and accelerating tissue repair. Conversely, 625 nm light increases glycolytic flux and lactate production, promoting a pro-inflammatory M1 state that delays healing. " "We identify mitochondrial dynamics as the key

Devices that emit this wavelength

Matched on wavelength within 15nm, since LED bins vary by roughly that much and a tighter match would be false precision. Where we have an irradiance figure, the session length is the time needed to reach this study's dose of 10 J/cm² at that intensity.

Matching a wavelength is not the same as reproducing a trial. Session times assume the device's published irradiance is accurate at the distance it was measured, which on brand-claim figures is often optimistic. Where a device publishes both a peak and an average we use the average, and where it publishes a falloff curve we use the lowest figure, so these times run long rather than short. Clinical protocols also control for spot size, contact and skin type in ways a home device cannot.