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EnrolLesson 5 of 8 · On camera · 2 min
Standard punch versus ring punch
This version only has the translated text. The English dubbed video is in production; meanwhile you can watch the original video.Watch the original video (Spanish)
Skin is not equally hard in all its layers: the punch enters at 8 mm per second and speeds up once past the surface layer. The ring 1.2 mm from the tip slows that advance, takes stress off the edge and gives the suction time to align the follicle.
Lesson content
Skin is viscoelastic and does not have the same density in all its layers: at the surface it is much more cohesive and harder.
- The punch enters at 8 millimetres per second, but not evenly: it is slower in the first portion of the skin and then speeds up under the same axial force.
- If the hair is fine or the skin very soft, that acceleration can cause injuries or transections of the follicles.
- The solution: a ring 1.2 millimetres from the tip. Once the punch has cut the hardest structures with the first millimetre, the ring touches the skin surface and slows the movement down: with the same force, the punch no longer accelerates.
That makes the dissection easier because it takes stress off the cutting edge, and the lower speed gives the suction more time to align the follicle inside the punch lumen. Extraction becomes much easier.
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