1927 and 1550 Lasers: A Closer Look

Name: 1927 and 1550 Lasers: A Closer Look
Uploaded: 2025-04-23T16:00:28+00:00
Duration: 39 s
Channel: Dr. Charles Mok
Description: Short explanatory video by Dr. Charles Mok about the Fraxel Dual laser. The speaker contrasts the two Fraxel wavelengths (1550 nm and 1927 nm), noting…

23 Apr 2025 · 1 min

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Short explanatory video by Dr. Charles Mok about the Fraxel Dual laser. The speaker contrasts the two Fraxel wavelengths (1550 nm and 1927 nm), noting 1550 has been the clinical "workhorse" for roughly 17 of the last 20 years while the 1927 wavelength was introduced around 2010–2011. The two are used together to target deeper collagen (1550) and the superficial epidermis (1927). The speaker gives skin-depth examples in microns: roughly 1000 microns ~ 1 mm for general skin thickness, under-eye skin ~ "3 to 600" microns (spoken), tip of the nose ~1100 microns, and around the mouth ~1000 microns.

Questions this video answers

1550 nm and 1927 nm.

Around 2010 or 2011 (speaker phrase: "around 2010 or 11").

About 17 of the last 20 years (speaker phrase: "really the workhorse of the past, say 17 of the last 20 years").

1000 microns is approximately 1 millimeter.

Under-eye: spoken as "3 to 600" microns; tip of the nose: ~1100 microns; around the mouth: ~1000 microns.

Chapters

The Fraxel laser has two different wavelengths. It's called the Fraxel Dual. There's a 1550 laser, which is really the workhorse of the past, say 17 of the last 20 years, in the 1927, which is more a newer laser technology added around 2010 or 11. We use these together. It allows us to target both the deep collagen and the superficial epidermis. So to put in perspective of depth, your skin is, is little less than a millimeter thick, or we'd call 1000 microns. 1000 microns is a millimeter approximately. The skin around the under eyes might be 3 to 600 microns deep. And then the tip of the nose might be more like 1100 microns around the mouth, about a thousand microns.