NIR Photon Skincare Devices Explained: How the Technology Actually Works

2019-04-11 · Updated 2026-07-25 · By the Aolemon export team

NIR covers roughly 700 to 1400 nanometres, sitting just beyond the visible red end of the spectrum. The practical significance is not the colour, which the eye cannot see, but the scattering behaviour: as wavelength rises, light scatters less in skin, so 830 to 850 nanometres reaches several millimetres into the dermis where 630 nanometres of visible red stops much shallower.

Absorption shifts with wavelength as well. Water absorbs more strongly as you move deeper into the infrared, while haemoglobin and melanin absorb less. That transition moves the mechanism away from chromophore targeting and towards a mild, controlled temperature rise in the tissue beneath the surface.

That temperature rise is the working principle. A well-designed device lifts dermal temperature by two to four degrees Celsius without heating the surface to the point of discomfort, and the cells answer with a heat-shock protein cascade. Fibroblast activity and collagen synthesis increase over weeks rather than minutes, which is why NIR results are cumulative and slow.

Dose decides the outcome. Irradiance multiplied by time gives fluence, so a panel delivering 30 milliwatts per square centimetre for twenty minutes deposits 36 joules per square centimetre. Most disappointing home results trace back to under-dosing rather than to a poor choice of wavelength.

Aolemon builds 830, 850 and 1060 nanometre NIR devices in Hangzhou, calibrates irradiance at the finished-product level rather than at the bare emitter, and publishes dose tables for each treatment area so buyers can quote realistic treatment times.

View this NIR photon skincare device on Aolemon

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