A technological breakthrough
In the early 2000s, a group of eminent physicists in the Mechanical & Aerospace Engineering at Princeton University were working on something a little outside their normal field of research: tattoo removal. Together with dermatologists, they discovered a new and innovative way of removing ink from the skin.
For the first time ever, they were able to quickly and effectively remove multi colour tattoos without damaging the skin.
How does laser tattoo removal work?
When you get a tattoo molecules of ink are inserted into the skin. The immune system senses this, and sends white blood cells to the area in an attempt to remove the ink. These attempts aren't successful - whilst the white blood cells can process smaller ink molecules, the larger ones don’t budge (ink molecules can be up to 100x the size of white blood cells). This is essentially why tattoos are permanent.
To remove a tattoo, this process is simply accelerated - really accelerated. Lasers (powerful beams of light) break apart the large ink molecules, allowing the body to process them. How this works is really just an energy transfer: the molecules absorb energy from the laser. The amount of energy, though, needs to be just right.
Current laser tattoo removal relies on high energy laser pulses. When these high levels of energy are absorbed by the molecules, they heat up rapidly (up to several thousand degrees Celsius), expanding as they do. These very hot, expanded ink molecules come into contact with the skin, often causing blisters and burning. Eventually, the expansion will cause the particles to break apart - but not without causing long term damage first.
NAAMA TAKES A DIFFERENT APPROACH
Pulsing 1000x faster and with 1000x less energy allows energy to be absorbed really quickly. This means ink molecules break apart speedily, before any energy can escape and damage the surrounding skin. A much more focussed spot size also means the area the laser comes into contact with is really precise, avoiding untattooed skin being damaged.