The Alexandrite 755nm laser works much faster than other types of lasers such as the ruby and diode lasers, and effectively targets the hair root.

Still Alexandrite 755nm laser beam is limited in other ways. It is not the best and safest laser to use on darker skin types or tanned skin.

The Alexandrite laser systems categorize into GentleLASE, Apogee, and EpiTouch Plus.
Alexandrite 755nm comes in 12mm/15mm/18mm spot sizes.

The Alexandrite 755nm laser has a shorter wavelength system. Moreover as a side effect it frequently produces side effects such as pigmentary changes could be lightening or darkening, or in extreme cases for patients of all but white skin.

There have been claims regarding safety in treating darker skin types such as brown skin, it is not recommended to use this laser devise for treating unwanted hair in any skin type other than one which is very white skin.

Ruby (694 nm wavelength) was first used to help clients who had undergone re-constructive plastic surgery. It was developed by Professor Marc Clement at the Swansea Institute.

Ruby (694 nm wavelength) uses the melanin extract of the hair shaft to absorb the laser light, attacks the follicle but passing without causing any harm to the nearby surrounding tissues.

The wavelength used is highly absorbed in the melanin and only minimally in the surrounding tissue and the pulse length is carefully pre-set to create sufficient heat to prevent re-growth without damaging the skin.

Clinical tests show an average 80% reduction in facial hair after six months and just two treatments.
The 694 nm ruby laser has been used clinically for the removal of tattoos, treatment of congenital nevi and has recently been developed and put to use for the removal of unwanted hair, termed under the process of laser hair removal.

Laser-assisted hair removal is quick, painless, and potentially permanent and has application in reconstructive surgery, treatment of pilonidal sinuses and of unwanted hair resulting from hormonal imbalance in polycystic ovary disease.

Melanin is the major chromophore within skin absorbing at this wavelength and the ruby laser targets melanin containing hair and cells of the hair follicle.

Hair destruction is done with the logic of a process believed to be selective photo-thermolysis, with damage being confined to the hair and hair follicle and minimal thermal damage occurring to the surrounding tissues.

Nd: Yag (1064 nm wavelength) is considered to be ideal for targeting blood vessels, especially the deep rooted veins. The delivered light of the specific wavelength catches up to 700 J/cm2, for the purpose of powerful vein clearance.

Nd: Yag (1064 nm wavelength) includes six different types of equipment for the effective implementation of the process which include CoolGlide, Medlite IV, Varia, Athos, Lyra, and Image.

The actual process of working for a Nd: Yag (1064 nm wavelength) is by heating the heamoglobin within the vessels by the supplied energy, which in turn causes the vessel walls to constrict. This leads the vessels to shrink and therein it fades from the view.

Nd: Yag (1064 nm wavelength) as an equipment has an added feature of a footswitch control which allows rapid pulsing of the equipment for quicker treatments, where else the efficacy of the equipment adopts for the process of better vessel clearance after a very few sessions.

With high margin visibility of the equipment, the popularity and demand is growing fast amongst the physicians. With the assistance of a red aiming beam the positioning of the laser pulses over the vessels gets even better cultivating a successful result of treatment.

As for now Nd: Yag (1064 nm wavelength) systems are using longer pulse durations without any tar. There have been cases which have reported these systems to be very painful in their terms. Also, due to lack of proper evidence there are speculations with the use of this form of treatment.

The Diode Laser (800nm or 810 nm wavelength) is the most recent introduction in the hair removal department. As such little is known about it’s functioning as of now.

The Diode Laser (800nm or 810 nm wavelength) emitted wavelength enables light to be practically safer and enforces the energy to penetrate deeper because in this way it avoids the melanin pigment in the skin’s epidermis.

With technical developments in the Diode Laser equipment, the new models of the machine are enabling themselves to deliver the light source for longer periods enroaching on preventing side-effects at all cost but still producing better results with hair removal.

The diode Laser system of treatment includes F1 Diode, Light Sheer, SLP 1000, MeDioStar, Epistar , LaserLite and Apex 800.

These new machines emit wavelength which move in with the hair follicle without causing any injury to the epidermis which enables this machine to be used on dark skin colors which has been seen to be a huge advantage of its kind.

With experts waiting on the total review of the equipment, it is as of yet considered to be the most effective for short term skin treatments.

Ultimate Light™ or Pulsed Light (IPL) is a major advanced technology in the process of laser hair removal. This process enhances the art work of a physician as it enables flexibility of customized treatment and produces better results.

A laser is actually dedicated to deliver one color or wavelength of light, while Ultimate Light™ pulsed light delivers hundreds of colors of light with each flash of light.

Ultimate Light™ or Pulsed Light (IPL) is a trademark method that uses light which can be in a varied form including pulses, lasers or any other form to treat the cosmetic needs of an intended patient.

Ultimate Light™ or Pulsed Light (IPL) uses four types of machines to be put under use which include an EpiLight, PhotoDerm, Quantum, Aculight or a Vasculight.

PhotoDerm was the original devise incorporated for treating facial Rosacea, facial blood vessels, leg veins etc.

EpiLight has a reputation to be the most specific and advanced for the process of hair removal. It is actually an advanced technology of a PhotoDerm machine.

On the other hand the Quantum or the Aculight machines are the simplified versions of EpiLight format, introduced for the use of inexperienced physicians.

Side effects of Ultimate Light™ or Pulsed Light (IPL) usually involve temporary change of skin color which can be either lightening or darkening depending upon the case which can last for several weeks or months.