It appears many people are using their tattoo laser wrongly! They are holding it off the skin, up to 10 to 20cm away. This is just wrong!! By doing this they will invariably apply a very small spot diameter at the skin surface which generates a huge fluence (energy density). Such fluences can easily damage… Continue reading The WRONG way to do laser tattoo removal!
Tag: #lasertissue
Treating blood vessels with an IPL
Blood aborbs 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… Continue reading Treating blood vessels with an IPL
Thermal Relaxation Time – The Flaw in Selective Photothermolysis
I gave a talk at this year’s BMLA meeting in Edinburgh. It was on a topic close to my heart – the notion of thermal relaxation times and how they don’t apply to modern-day photo thermal treatments. Here it is… I hope that clears up a few things, Mike.
MasterClass – Secure your place with a deposit…
If you want to attend our MasterClass in Birmingham (September 18/19th, 2022) you can secure your place by paying a £100 deposit. To do this just click here… If you require any further details, please let me know – MikeMurphyLPA@gmail.com. See y’all there, Mike.
Treating nasal thread veins with an IPL
IPL devices output a broad range of wavelengths which can be used to treat hair, blood vessels and pigmentation. We know that blood absorbs yellow light very strongly – typically in the region 500 to 600 nm (or thereabouts!) I trained some ladies (in ‘Mona Permanent Cosmetics’), recently, to use their IPL for telangiectasias (thread… Continue reading Treating nasal thread veins with an IPL
MasterClass – Birmingham – Sept 2022 – Details
The 1st DermaLase MasterClass wil be held in September this year in Birmingham. The detals of this event can be downloaded in a pdf format from here. Here is an outline of the topics which will be discussed – if you have a particular topic which you wish to be addressed, please let us know.… Continue reading MasterClass – Birmingham – Sept 2022 – Details
How much light energy actually emerges from IPL filters and reaches the skin surface?
When we set a fluence on an IPL unit, it is based on ALL of the light energy coming from the handpiece. However, each filter will absorb some of that energy – it is supposed to! The filters are designed to ‘block’ certain wavelengths, so that only the desired wavelengths reach the skin surface. So,… Continue reading How much light energy actually emerges from IPL filters and reaches the skin surface?
Selective Photothermolysis – an in-depth explanation
Back in 2016 (I think) I gave a talk to the American Society of Lasers Surgery and Medicine about the theory of Selective Photothermolysis. This is the theory which underpins all of today’s photothermal laser/IPL treatments. In this talk I discuss the idea behind thermal relaxation time and how it ‘fits’ with treatments. In fact,… Continue reading Selective Photothermolysis – an in-depth explanation
Laser/IPL Hair Removal – How many follicles do we kill each treatment?
All hair follicles grow according to a cycle – ‘anagen, catagen, telogen’. The follicle germative cells promote anagen hair growth at consistently regular intervals resulting in periods of active growth, followed by inactivity. The duration of these periods depends on the which part of the body is being considered. I created a computer model to… Continue reading Laser/IPL Hair Removal – How many follicles do we kill each treatment?
What is the ‘best’ interval between hair removal sessions (after treatment by lasers or IPLs)? Part 2.
I wrote a blog post back in September 2021 discussing my thoughts on the how to determine the optimum interval between laser/IPL hair sessions. It proved very popular amongst my readers. But, as soon as I posted it I began to doubt my own conclusions. Back then I suggested that we should wait for an… Continue reading What is the ‘best’ interval between hair removal sessions (after treatment by lasers or IPLs)? Part 2.
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