Page 168 - Blog Posts v1

C2 - Treating blood vessels with an IPL
Blood absorbs light strongly in the region between about 500 and 600nm. The graph below shows this with both oxy- and deoxyhaemoglobin (the red and blue lines). We don't use the lower wavelengths (below 450nm) because they are too near the blue/ultra-violet part of the spectrum!
So, we can selectively target blood vessels using these colours of light. With many IPL systems we can choose a filter which will allow those wavelengths through to the skin. Most systems, these days, have a filter at around 530nm which is the 'best' choice for blood vessels.
During a training session at 'Mona Permanent Cosmetics', I showed the trainees how to apply such an IPL on various blood vessels on their models.
Mike’s Blog Posts 168