JournalWhat 660nm actually does.
A short, annotated reading of the published research on red light and skin tissue. Mechanism first. Claims last, if at all.
Absorption
Light at 660 nanometres penetrates the upper layers of skin, where it is absorbed by cytochrome c oxidase, an enzyme in the mitochondrial respiratory chain. 1
Energy
Absorption is associated in published studies with increased ATP production, the energy currency cells use for maintenance and renewal. 2
Signal
Researchers describe this as photobiomodulation. Light as a signal to tissue, not a treatment applied onto it. 3

Fig. 1 · Restoration Belt
The array faces inward. In use, only the edge glow and the side control unit are visible. 630 to 660nm, calibrated to a twelve-minute session.
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The literature is careful, and so should we be. What we can say is mechanistic. What the skin does with it takes weeks of consistency.
Research Lead · Zential Pure
1. Hamblin, M. Mechanisms of low level light therapy. 2017.
2. de Freitas & Hamblin. Proposed mechanisms of photobiomodulation. 2016.
3. Anders et al. Low-level light/laser therapy versus photobiomodulation therapy. 2015.
Mechanism, at home.
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