Assertion: laser's wavelength | /r/HasProperty | suitable
Facets:
value: for skin rejuvenation
type: PURPOSE
value: for surface smoothing
type: PURPOSE
Source sentences:
text: The machines use both red and near infrared light, with the 660 nm red wavelength being suitable for skin rejuvenation & surface smoothing, and the 850 nm near-infrared wavelength being recommended for issues regarding tissues, joints and muscles.