Ruby, Alexandrite,  diyod, co2,  and Nd:YAG.According to wavelenghts  they target different cromofors. Every wavelenght laser can be  utilised for different reasons.Design of the laser and the user is extremely important to minimize the risks.

There are three phases of hair growth: anagen, catagen, and telogen. Lasers can only target the anagen, or active, phase of the growth cycle Anywhere from 20 to 85% of hair is in the anagen phase at any given time. This varies with different areas of the body .Regression begins in the catagen cycle. During the telogen stage, the follicle is “dormant” and prepares for the development of new hair. Because the laser can only treat hairs in the anagen phase, several treatments will be necessary for the desired result.. a series of three to five treatments are administered at four to eight week intervals depending upon the location of the hair..     

Facts About Laser Hair Removal

  • Age,race,weight,hormons,diet,medication pills and metabolism play important role on hair removal
  • While the number of treatment varies from person to person, on an average, everyone requires at least three treatments for good results. This is typical because while all hair is temporarily disabled during each treatment, not all of the hair follicles are removed. Hence, a sequence of treatments is necessary in order for results to become apparent. Overall, most people do not require more than six treatments, though people with hormonal imbalances or people who normally wax or pluck a lot may require more sessions.
  • Lasers all produce a bright pure red light that is not cancer forming. It does not penetrate far into the skin, just a few millimeters. It is not like X-rays or radiotherapy. However it is dangerous to eyesight and protective goggles must be worn.
  • Discomfort during laser treatment is minimized with Nd yag laser. The surface of the skin is protected by built-in cooling systems which help to protect and soothe the skin during treatment of your unwanted hair.
  • Side effects are very low ;redness and irritation of skin is temprorary. 
       

How does Nd yag laser work? 
Lasers are non-invasive light therapy systems which have been custom designed to eliminate undesired hair from all parts of the body.Fourth generation Nd yag  generate pulses of intense, concentrated light which are directed through small, cooled hand pieces which are gently applied to the treatment site.

How does  Coolglide Nd yag laser differ from older technologies?
Older intense pulsed light (IPL) systems were flash lamps producing a spectrum of light energy rather than laser light. Those intense pulsed light systems were limited by their short wavelength and so tended to stun rather than kill hair follicles, so that there is often an unacceptable amount of hair regrowth, even after many "intense pulsed light" treatments.

  • First generation Ruby laser: 694 nanometer (Epilaser™, Epitouch™, Chromos™)
  • Second generation Alexandrite laser: 755 nanometer (Epitouch ALEX™, Photogenica LIPR™,  GentleLASE™)
  • Third generation Diode laser: 800-810 nanometer (LightSheer™, Apex™)
  • Our fourth Generation Cutera  Coolglide Nd Yag laser® laser uses the longest available, deeper penetrating 1064 nanometer wavelength. Cutera  Coolglide Nd Yag laser® reaches even the deepest hair roots, which can be 4-6 mm below the skin surface in some cases.
  • The long 1064 nanometer wavelength of   Coolglide Nd Yag laser Nd yag laser makes it possible to safely and effectively treat all people -- even those with tanned, very dark or black skin. Like all lasers, the  Coolglide Nd Yag laser® works more efficiently on light colored skin -- so to minimize the number of treatments you need, try not to have a fresh suntan when you come in for treatment. 
     

Coolglide Nd Yag laser® also allows the operator to adjust the duration of the pulse of laser energy to best suit the thickness of the hair shafts on different parts of your body. Some older laser systems lack this degree of fine control.

What areas of the body can be treated?
ALL parts of the body CAN be treated (and ARE treated) with the  Coolglide Nd Yag laser® hair removing laser. In women, the most common areas for treatment are upper lip, chin, bikini line, arms and legs, and underarms. In men, the most common areas for treatment are shoulders and back, and the beard area. While it is technically possible to treat even the eyelashes and eyebrows, we do not treat those areas at the present time. The top of the eyebrows can be treated when the forehead is treated. Nd yag laser is customized for the treatment of large untanned areas like the legs and back.

What are the benefits of Nd Yag laser and  compared to alternative treatments?

The primary benefits of  Coolglide Nd Yag laser®Nd yag  laser  include:

  • Larger areas may be treated with less discomfort than with electrolysis, waxing or tweezing
  • The Nd Yag  laser combine speed, comfort and long lasting results.
  • The Nd Yag laser works on any area of the body where a hair-free appearance is desired..
  • The Nd Yag is safe for use on pregnant women -- who respond well because their hair is often thicker and darker during pregnancy.
  • Shaving, waxing and depilatory creams remove the hair but leave the hair follicles intact, so the hair re-grows within one to four weeks in most cases.  Coolglide Nd Yag laser® offers you a long-term reduction in both the amount of hair, and also in many cases a reduction in thickness and color of hair shafts which do grow back.


Hair removal methods like plucking, waxing or sugaring which cause irritation may actually stimulate hair growth. This happens because one way the body defends itself against having hair pulled out is to produce thicker, stronger hairs which are harder to pull out next time. Another advantage of  Coolglide Nd Yag laser® treatment is that your skin can be kept nice and smooth between treatments by shaving -- you will never again have to grow your hair out long enough to be waxed or sugared. Occasional waxing can be useful to temporarily get rid of white hairs and fine peach fuzz hairs after you have completed a course of Cutera  Coolglide Nd Yag laser® laser

Coolglide Nd Yag laser® laser  offers long lasting results, and even if hair does eventually grow back it is usually finer in texture and lighter in color than the original hair, and much less of a cosmetic problem.

Does laser hair removal cause a change on the skin ?
Redness often can fade greatly by the time you get home. It would not be uncommon for the skin to be slightly drier that evening and to require more of your favorite moisturizer, for example, Alyria Hydrating Complex™ Moisturizing Cream.

Is laser hair removal permanent? 
The general opinion is that laser hair removal is permanent, and the Food and Drug Administration approved it as “permanent reduction,” but doesn’t work on everyone. Most will also need touch-up treatments 1- 2 times a year after the initial set of treatments It has also been observed that some people seem to be non-responders – this is not confirmed and reasons are not known as not enough research has been done in this area. Keep in mind that it's also difficult to judge whether someone’s  lack of results is due to the person’s potential underlying medical condition that causes continuous growth and makes it seem like laser isn’t working, whether the treatment wasn't performed properly, or whether for some people it just doesn't work and we don't know why.

How many treatments are required?
The number of treatments desired will depend on:

  • the desired degree of hair reduction (as the amount of hair declines, some people become very enthusiastic and want even LESS hair than they had originally planned on).
  • hair color (people with naturally light colored hair sometimes need more treatments).
  • ethnic and genetic background (people with dark skin sometimes need more treatments).
  • hormonal status
  • area being treated
  • hair density
  • age
  • weight (obesity can increase hair growth)
  • medication (for example medicines like Dilantin and cyclosporine can increase hair growth)

Most people need at least 6-8 initial treatments spaced 6-10 weeks apart. This is because hair grows in 3 phases and is killed in the first “anagen” active growing phase. Usually, treatments are spaced 6-8 weeks apart to start, and gradually move to 8-10 weeks apart after the initial 2-3 treatments and you see enough hair come in after the hairfree period to justify the next treatment.

What are the possible factors of hair growth and how can it affect my treatments?

  • Heredity
  • Pregnancy
  • Glandular and/or hormonal imbalances (possible PCOS condition for women), including diseases causing these effects

  • Insulin resistance issues

  • Reactions to certain medications

  • Normal aging processes

  • Excessive temporary removal methods like waxing, tweezing, creams and depilatories, etc
    Every laser candidate should explore a possible underlying reason of the extreme hair growth before starting laser because if there is something in the body consistently triggering hair growth, laser treatments might seem ineffective because the body will keep developing new hair. Once the condition is control through treatment/medication, laser hair removal can then be performed. Laser can affect the hair that’s currently present, but cannot prevent NEW hair from developing.

Will Laser Hair Removal work for me?

Due to the fact that a laser targets melanin, the more melanin an individual has in his/her hair, the more effective a laser will be. Therefore, someone with gray, red, or blonde hair is not as good a candidate for laser hair removal.

In addition, the more melanin in your skin, the darker it looks. Since the laser does not distinguish between melanin in hair and melanin in skin, the more melanin present in the skin, the more the laser is going to target the skin rather than the hair. Therefore, someone with darker skin is not as good a candidate for laser hair removal.

Light skin and dark hair are the best combination for laser hair removal. The more closely an individual's skin tone matches his/her hair color, the less likely he/she is to benefit from laser hair removal.

Is laser treatment painful?

In one pulse, the laser can remove all the hair on a patch of skin the size of a nickel Everyone’s pain threshold is different, but generally laser hair removal is not much more painful than waxing, but the sensation is different. It resembles a rubber band snapping against the skin for a quick second with each pulse. .

What to expect during the laser hair removal procedure?

The length of a laser session may range from a few minutes to an hour or more depending on the size of the area being treated. How long the procedure takes depends on the area of the body involved. A small area such as the upper lip may take several minutes. A larger area such as the back may require several hours.

Since laser tends to treat hair follicles that are in an active growth phase, more than one treatment may be required to disable hair follicles that subsequently enter this growth phase.

During the procedure, laser light will be delivered through a hand held piece attached to a laser console. You may experience a stinging sensation as the laser pulse is delivered. To reduce discomfort, the cooling system automatically removes heat from the surface of your skin before, during and after the laser exposure. You should not need general anesthesia or pain medication, but a topical anesthetic cream may be applied to sensitive areas. The process can take from just a few minutes for an upper lip to several hours for a full back and legs.

Laser treatment itself may cause a slight tingling sensation. Most patients tolerate the procedure well. But because some areas of the body are more sensitive than others, topical anesthesia can be an option. The appearance of the treated area immediately after the laser session will vary from patient to patient depending on the extent of treatment and skin type. Immediate after-effects, if any, are minor. They may include redness and swelling, which disappear in a short time. Most people return to normal activity right away.

During the procedure, you wear goggles to protect your eyes from accidental exposure to laser light. The procedure causes a slight charring of your stubble. You may notice a strong odor of singed hair, which is normal. Afterwards, you may experience some temporary redness and swelling.

What are the post-treatment instructions?

It is common to experience redness or bumps after the treatment. A cold compress often helps in this scenario. Apart from this, general precautions to take after laser hair removal treatment include:

  • Minimal use of makeup and maximum use of moisturizer
  • Use sun block of SPF 25 or more for a couple of weeks after the treatment
  • If needed, the only other acceptable hair removal method during the treatment regimen is shaving
  • Be aware that hair will continue to shed up to three weeks after the treatment. Help the hairs out by using a loofah or washcloth.

Are there any restrictions on my activity after treatment?

Since the CoolgGlideNd Yag laser do not burn or cut the skin in any way, no bandages are necessary. You can return to work the same day and resume all your regular activities. To reduce the chance of uneven tanning in the treated areas, you should minimize sun exposure and tanning for a week or two after treatment.

It is OK to resume shaving or clipping hair in the treated area after 3-4 days. You should NOT have waxing / sugaring / plucking or electrolysis, because these things will temporarily remove pigmented hairs from the hair roots and reduce the effectiveness of your next treatment. Sometimes after plucking, waxing or sugaring the hair will become thicker and darker, because one of the ways that the body defends itself from chronic irritation is to produce thicker, darker hairs.

Shaving really is the BEST temporary way to remove unwanted hair before treatment, and between treatments. Shaving leaves the hair SHAFT in the hair follicle, so the hair shaft can be a target for laser energy, heat up and KILL the hair follicle.

What should I expect to pay for  laser hair removal?

Prices vary widely from clinic to clinic. It’s recommended that you get 3-4 consultations before deciding on a clinic as well to compare prices and technician’s experience etc. The “uniqueness of you”, is a big factor in the cost. Are you a good candidate for laser hair removal? How many treatments? How big an area will be treated? And how dense is the hair? These factors will influence amount of your hair removal treatment package.

4th Generation Nd Yag Laser Hair Removal

Both men and women seek laser hair removal services to have unwanted hair removed. Hair removal is commonly done on the hairline, eyebrow, top of the nose, lip, chin, ear lobe, shoulders, back, underarm, abdomen, buttocks, pubic area, bikini lines, thighs, face, neck, breast, arms, legs, hands, and toes.Coolglide Nd Yag Laser provides optimum solution for hair removal for every type of skin and colour . Due to its great design and long wavelenght it is  extremely effective , safe and minimizes discomfort and side efects.It is appropriate for both men and women.