I asked an AI for a summary of each of my three books.In particular, I asked for the salient points: Three Key Points: Based on the detailed content provided from “An Introduction to Medical/Aesthetic Lasers and IPL Systems” by Michael J. Murphy and Per-Arne Torstensson, here are three core points with their supporting arguments: —… Continue reading I asked an AI to summarise my books. Here’s what it said…
Tag: Laser Tattoo Removal
Why we must use HIGHER fluences on darker skins…
When treating skin with lasers/IPLs we are often told that darker skin tones must be treated with lower fluences. This is wrong! Our skin tones come from the concentration of melanin in the epidermis – mostly in the basal layer in lighter tones. In darker skins, the melanosomes may be found throughout the epidermis, not… Continue reading Why we must use HIGHER fluences on darker skins…
How far does light scatter in the skin?
When light enters the skin, it immediatley begins to scatter. This is the process where photons are absorbed by atoms (making electrons ‘excited’), and new photons are emitted shortly after (when those electrons ‘de-excite’). Inevitably, they leave the atom in a different direction to their original direction. This is called ‘scattering’. Consequently, the light spreads… Continue reading How far does light scatter in the skin?
Leaving longer intervals between laser tattoo removal sessions results in more ink clearance – a new publication
Many of you probably already know that leaving longer intervals between laser tattoo removal sessions usually means that more ink disappears. I first noticed this in 2019, after treating my son-in-law. But it was confirmed after the Covid lockdowns, when many treatments stopped across the world. Many laser operators posted up photos of quite unexpected… Continue reading Leaving longer intervals between laser tattoo removal sessions results in more ink clearance – a new publication
Comparing laser light with IPL light energy in the skin
I often see comments online claiming things like ‘IPL doesn’t penetrate as deeply as laser’ or ‘IPL is ineffective in treating hair/blood/potatoes/whatever…’ These comments are usually never based on the science. So, here’s the science… Light is light! Hope this helps, Mike. Our next MasterClass will be held in Liverpool in June of this year.… Continue reading Comparing laser light with IPL light energy in the skin
Why does spot size affect penetration depth?
This is a little tricky because it’s not intuitive. We know, from both clinical tests and computer modelling, that larger spot sizes result in more energy/fluence reaching deeper into the dermis. But how does that happen? Well, it all comes down to scattering. The dermis is mostly composed of collagen fibres. These fibres are all… Continue reading Why does spot size affect penetration depth?
New, downloadable booklets
I am currently writing a series of ‘bite-sized’ booklets on various topics including laser/IPL treatments, laser safety, the technologies we use today and variouis other stuff. These will be uploaded to my new web site as, and when, they come along. The first two are now available: The first one is a ‘general’ introduction to… Continue reading New, downloadable booklets
Tattoo ink colours – which laser wavelength is “best”?
This thorny issue again! I was training someone recently and discussed the data in the table below. This comes from my calculations (click here for more on this) based on previous clinical studies. While discussing this table, I realised something interesting. As I’ve mentioned previously, any tattoo ink colour can be ‘treated’ by any wavelength.… Continue reading Tattoo ink colours – which laser wavelength is “best”?
Laser tattoo removal of ink colours – Part 3
There’s more… One of my readers, Dan Jackson, asked me about pulsewidth (in a roundabout way) after my recent posts about ink colours (Part 1, Part 2). I had forgotten that the pulsewidth does have an effect on the threshold (minimum) fluences required to instigate the desired response in tattoo ink colours. A few years… Continue reading Laser tattoo removal of ink colours – Part 3
Laser tattoo treatments – how to treat ink colours – Part 2
I recently wrote a post about tattoo ink absorptions and how they vary across the wavelengths we use today (click here for that post). After that, I thought more about the relative fluences required to induce the desired reaction in ink colours. I used the graph which I nicked off the internet (see below) –… Continue reading Laser tattoo treatments – how to treat ink colours – Part 2
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