Page 192 - Blog Posts v1

A typical 'carbon facial' handpiece tip
This tip usually does not contain a lens as the fluence (energy density) required is very low. Since the ink particles are sitting on the skin surface, there is no requirement for a high fluence.
The glass at the end of this tip is there to prevent carbon smoke particles entering the laser head.
However, this glass can be easily covered in carbon ink particles during this procedure, which will block any further light energy. So, it is a good idea to keep this glass clean. A simple way to do this is to cover the end with some clingfilm (see below).
This also reduces the chances of any cross-contamination - important in these days of Covid!!
(Incidentally, you could use this clingfilm technique when treating tattoos with the other tips too - this will protect the lens inside your handpiece).
Mike’s Blog Posts 192