So, just the other day, I was thinking about how much energy we need to destroy hair follicle and blood vessels. Typically we talk about 1 or 2 joules per pulse. Then I thought, what is 1 joule of energy? I had no idea what this actually meant in the ‘real’ world! So, I… Continue reading How much energy does it take to heat a cup of coffee or tea?
Cosmoprof, Hong Kong, November 2016
So I decided to go to this year’s Cosmoprof Show in Hong Kong. I know, it’s a dirty job but someone’s got to do it… I found many Chinese and Korean manufacturers of lasers, IPLs, RF equipment and loads of other interesting gadgets. I also spoke to a fair number of sales people and engineers… Continue reading Cosmoprof, Hong Kong, November 2016
‘Lunch & Learn’ – Quick, lunchtime courses in lasers, IPLs, RF and their applications
NEW SHORT COURSES I will be starting some ‘Lunch and Learn’ courses very soon. These are designed for clinics/salons where laser/IPL users want to learn about more about certain topics. Each L&L course will last for about 45 to 50 minutes and will be presented via a Powerpoint presentation and a course booklet. The cost… Continue reading ‘Lunch & Learn’ – Quick, lunchtime courses in lasers, IPLs, RF and their applications
Laser Safety Glasses – Are you safe?
All laser users have to take responsibility for their laser safety glasses. Are they the right ones for the job? Are they properly specced? Do they comply with EU regulations? For more on this topic please see my article in Aesthetics –https://aestheticsjournal.com/feature/the-last-word-safety-glasses If you need any advice please feel free to contact me.… Continue reading Laser Safety Glasses – Are you safe?
Thermal Relaxation Time – what is wrong with it?
The theory which has underpinned many skin-laser treatments since 1981 is called ‘Selective Photothermolysis’. It is based on matching the laser wavelength to the absorbing chromophore. It also matches the pulse duration of the laser to the thermal relaxation times of those targets. However, there is a problem with this approach. The thermal relaxation time… Continue reading Thermal Relaxation Time – what is wrong with it?
Very interesting article about QS laser tattoo removal
I came across this article in Prime Journal – QS Laser Tattoo Removal. It’s very well written and discusses some good ideas around tattoo removal. I will need to try some of these myself…. Mike. mike@dermalase.co.uk
Tissue denaturation – the process
And here it is, in black and white…. This wonderful little equation describes how hair, blood, collagen or any other protein denatures as a function of time and temperature. It is important to understand how this works if you want to treat these proteins properly. Most people have never even heard of it, yet… Continue reading Tissue denaturation – the process
Laser Hair Removal and Tattoos
Via Laser Hair Removal and Tattoos Don’t Mix | Murphy Battista LLP Absolutely! You cannot use an IPL to treat hair above a tattoo! The pulse duration is far too long for the tattoo. Scar-free tattoo removal by laser is successful because most of the heat energy generated on the surface of the tattoo ink… Continue reading Laser Hair Removal and Tattoos
Astronomer Have Spotted A Mysterious Object, Which Is 570 Billion Times Brighter than the Sun | Physics-Astronomy
via Astronomer Have Spotted A Mysterious Object, Which Is 570 Billion Times Brighter than the Sun | Physics-Astronomy Wow!!
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