E-light is a term commonly used to refer to a machine, mostly an IPL, that combines light and RF. Although it started with the combination of IPL’s and RF, it can nowadays also refers to the combination of laser and RF as well. What is the benefit of combining RF with light for hair removal? […]
Painless hair removal
Everybody prefers painless hair removal if given the option. But what is painless hair removal and how does it work? Is it something that you can only do with a diode laser, or can other lasers also do painless hair removal? These are some questions we will explore in this article. Let’s start with pain, […]
The importance of pulse length
In the quiz on our website to test your knowledge on laser hair removal we have the following question: The thermal relaxation time of the human hair varies between 10 ms and 100 ms. To achieve the best possible hair removal results, the pulse length should be: a) Less than 10 ms. b) More than […]
Laser therapy optimization
Therapists generally believe that pre-set and factory protocols are optimized for their clients. This however is not the reality. When using pre-set and factory protocols there are two things one has to keep in mind. The first is that the engineers who design and program the machines are usually in a different part of the […]
The difference in light irradiated by a laser compared with that of an IPL
We are often asked to explain the difference between the light irradiated by a laser and the light irradiated by an IPL. It is well known that the one is a single wavelength and the other is a range of wavelengths, but what is the real life implications of this? The short answer is that […]
Types of skin cooling
Skin cooling is an important part of aesthetic laser therapy. During photothermal treatments, skin cooling is needed to protect the epidermis. But apart from protecting the epidermis it can serve various other functions such as local anaesthesia and blood flow restrictor. There are various forms of skin cooling available on the market, ranging from ice-packs […]
Fundamental laws of laser therapy
The two laws of laser therapy that we will discuss in this article may sound self-evident. However, very few therapists spend time to think this over. The first law of phototherapy states that light must be absorbed for any photoreaction to occur. In a previous article, Laser beam interaction with the skin, we’ve looked at […]
Why you cannot do laser hair removal on light blond, white and red hair.
We are constantly bombarded by manufacturers and sales people telling us that their laser or light-based equipment can do permanent hair removal on all hair colours. But as those of us with a bit of experience know by now, this is not the full truth. So why can’t we treat some lighter hair colour?Let’s start […]
Laser beam interaction with the skin
Marketing brochures for lasers and other light-based devices usually paints a picture of a light beam that enters the skin and hit the target molecule perfectly, it is then absorbed in its totality and providing the greatest result very time. But is this really true? No. The reality is that the moment a light beam […]
How to buy a laser
Looking at what is important when buying equipment. How do I buy a laser? Is a frequently recurring question we get at LaserCollege. Although there is no standard short answer for this question, we have tried to create a simplified process that will enable anybody to buy the best suited equipment for his or her […]