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Four weeks later
As I said above, we are deliberately trying to induce cellular damage using heat. But most of the heat is flowing around the dermis, which will damage other cells. The above cooling technique will help to reduce that damage significantly.
Summary
Photo-thermal treatments can generate excellent results, regardless of the technology - but only if the correct energy (fluence) is applied over the correct timescale (pulsewidth). However, this inevitably generates too much heat in the skin, which is not good. Proper cooling techniques will help to minimise tissue damage, while allowing good results to be achievable.
I suggest you try the above technique on yourself. Do three or four shots with zero, 1, 2 and 3 second pre-cooling times. You will feel a big difference between them.
Hope this helps, Mike.
Mike’s Blog Posts 235
