This is not easy to determine! It depends on the type of device you are using – IPL, diode, alexandrite, Nd:YAG laser. It depends on the depth of the follicles. It depends on the hair colour. I built a computer model to try to calculate these fluences. It considers all of the above, but today… Continue reading What are the threshold (minimum) fluences needed to ensure successful hair removal?
I’m often asked ‘how many hair removal sessions will I need using laser or IPL?’ This is not an easy question to answer because it depends on a high number of variables including your equipment, your training and, of course, your patient/client. But, I have tried to answer this question using a computer model of… Continue reading How Many Laser/IPL Hair Removal Sessions do I need to get a Good Result?
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.
I started in medical laser clinical research in 1986 as part of my Ph.D. studies in the Bioengineering Unit, Strathclyde University and in Canniesburn Plastic Surgery and Burns Unit. After gaining my degree in Physics and Astronomy from Glasgow University in 1984, I decided not to get a ‘proper job’ for a few more years,… Continue reading My history in lasers and IPLs and other stuff…
I’ve just launched a new training web site at DermaLaseTraining.com. It includes all the courses I can deliver plus a new shop where I will be selling some items which you may find useful. If you think I should include anything else in this new site please let me know. Likewise, if you find any… Continue reading New training web site
I have been asked many times in the last few years for a recommendation for an introductory book describing the application of lasers and IPLs in aesthetic treatments. My answer was always the same – “There isn’t one!!” So, I finally took the plunge and decided to write one, with my colleague PA Torstensson. The… Continue reading New Book – Medical/Aesthetic Lasers & IPLs and Skin Treatments
A brief history of my life in medical lasers and IPLs…
Many people are worried about ‘burning’ the skin during laser/IPL treatment of hair, tattoos, blood vessels etc. But, what is the actual risk? Well, we can work this out knowing the skin colour and the applied fluence. Now, as many of you already know, I don’t like the Fitzpatrick Scale because it does not determine… Continue reading What is the risk of ‘burning’ the skin with a laser or IPL?
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!
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
I am often asked, during training, “what is the best time to leave between laser/IPL treatment sessions?” This is actually quite tricky to answer. I wondered about this for some time and then realised that I had to build a computer model to answer it correctly. So, I used Excel and built such a model.… Continue reading Calculating the optimum intervals between hair removal sessions.
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.
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.
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
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