The principle of permanent laser hair removal
The principle of laser hair removal is as follows: light laser target and selectively destroyed area of the bulb, without destroying the other cells of the skin. The laser beam follows the hair thanks to its color (melamine that colors the hair shaft) and descends into the hair follicle to destroy the bulb and therefore destroy the hair by heating (approximately 60 °). This destruction is selective haired and is not detrimental to skin autour.
Permanent LASER hair removal therefore involves heating to destroy germ cells of hair and thus to prevent regrowth. We will use light energy from the LASER beam. This light is absorbed by melanin (the pigment that colors the hair) which are waterlogged the bulb and the matrix phase anagen hair that is in the growth phase.
We talk of selective photothermolysis.
Photo: laser is a high energy light. Set to a wavelength specifically absorbed by melanin, it targets the hair bulb where melanin is present in high concentration, which gives his dark haired.
Thermolysis: light energy absorbed by melanin is then converted into heat. The target cell temperature increases up to cell lysis. The bulb of the hair is destroyed.
Selective: only concentrated melanin cells will be destroyed, which explains that the treatment is safe for skin that has not been exposed to the Sun for a month. This process is painless and very effective.
The LASER hair removal cannot be effective on hairs in the growth phase; the procedure varies from one patient to the next depending on the amount of hair to eliminate but generally it is to shoot LASER in an area that has been previously shaved in order to cause a regrowth.
An efficient LASER shot will effectively create a red mark slightly edematous skin called erythema.
Permanent hair removal laser is aimed both to women than to men. We strongly recommend to wait at the age of 19-20 years before making a laser hair removal. It is necessary that all the hairs reach "maturity".
The skin must be prepared before hair removal laser. Avoid pluck the hairs with tweezers, pliers the wax or any other similar technique. The skin will be razed to the razor 2-3 days before the meeting.
The practitioner will adapt laser to your type of skin: the technique is not painful, without social eviction. A test area is made in general to determine how your skin reacts to the laser. Each person is different. There are two types of main hair removal lasers: Alexandrite laser and NdYag laser based on our phototype.
4 to 8 sessions are recommended for long duration laser epilation, the number of meetings is determined by the practitioner according to the type of skin and hair color.
Sessions spaced at least a month (it takes the hair regrowth, and not to epilate the wax or pliers tweezers between sessions).
The LASERs used in the Laser Centre Medical de Saint Dizier are the ALEXANDRITE Laser amplifying a 755 nm (clear phototypes) light and YAG laser at 1064nm (darker phototypes).
This follicular peri edema is the clinical sign of the effectiveness of the treatment, it indicates that the root of the hair has transformed light into heat and thus destroyed germ cells, in order to leave no lesions or too painful phenomena on the skin the application of cold via the handpiece before firing LASER allows to limit the risk of the treated surface burns and allows to have less pain.
During a LASER hair removal session part of hair is phase anagen (20 to 30%), this part of hair can be destroyed by the meeting.
Other hairs (60 to 70%) are in the so-called phase telogen or phase catagen; during these two phases of their life cycle cells are dormant phase and contain no melanin, they react so not archery LASER during the meeting, it will be destroyed by the LASER at a future meeting.
The laser hair removal session is located in the Centre Laser Medical of St Dizier between Reims and Nancy near Châlons in champagne.
-After the meeting the hairs fall within 10-15 days
-separation of at least 1 month sessions see 2 months after the first session.
-Permanent hair removal in 7-8 sessions
–difference with pulsed light or IPL?
détatouage laser Qswitched
Tattooing involves the injection of ink or pigment to the skin in order to obtain a drawing. It remains permanently in the skin over the life course.
Tattoos are often witnesses to a phenomenon of fashion or the manifestation of a desire for originality. However their final characters can generate a sense of weariness or cause discomfort in social and professional life especially when they sit on the parties discovered as the hands and forearms.
Nd: Yag Q-Switched lasers to get a tattoo removal with an excellent aesthetic result when indication is well posed.
The number of sessions of de-tatouage varies strongly according to the nature of the tattoo and the skin of the subject. It takes between 2 and 3 sessions for a tattoo superficial amateur (pique needle and black ink that would have blued with time) on an area of about 5 to 10 cm².
For a professional tattoo, depending on the use that was made of colors, can be counted up to a dozen sessions to remove a tattoo, to multiply on the surface affected by the tatoo of course.
Just like a tattoo, it is mandatory to let the skin rest and heal between different sessions, with 1 to 2 months between tattoo removal sessions: forget the idea of removing your tattoo in the back before the summer recess, it is expected that it will take probably longer than originally envisaged: the laser tattoo removal causes trauma to the skin similar to that of the tattoo , with the formation of crusts.
The duration of a tattoo removal treatment can easily go from 1 to 2 years depending on the surface and the nature of the tattoo. It is both essential to go through a doctor, who will tell you more easily the duration to predict on the basis of your tattoo to be removed.
The laser tattoo removal, it hurts?
Here also, the pain is as for the tattoo one of the questions that comes up most frequently. You want to learn to sing? This is the time. A meeting of tattoo removal is indeed a painful process, what most practitioners say. It is quite common that patients consider this step as much more painful than tattooing. Is it because the result is not as attractive as for a tattoo we dream for a long time, and that it is not known what to expect in terms of results that the pain is more?
With the laser, the pain is simply more vivacious and violent for a tattoo, because burning can persist for several weeks depending on the case.
To guard against the pain caused by the laser, can consider the use of an Anaesthetic cream like cream EMLA, to apply about 1 hour before the meeting.