What is laser hair removal?
What is hair anatomy?
Anatomy Hair follicles are composed of the bulb (matrix and dermal papilla), outer root sheath, bulge, and hair shaft. The hair matrix depth in the skin ranges from 2 to 7 mm, depending on the body location, and the hair bulge is approximately 1.5 mm. Hair development occurs in three separate stages, each characterized by specific changes under the skin in the hair bulb: (1) anagen, the active development period of the hair bulb during which it is most densely pigmented; (2) catagen, the regression phase when cell division ceases and the follicle begins to involute; and (3) telogen, the resting phase during which the hair bulb is minimally pigmented. Hair growth is initiated by epithelial stem cells located in the bulge, a protrusion near the attachment of the arrector pili muscle. During anagen, the rapidly dividing matrix cells of the hair bulb cause the hair to elongate and transfer melanin to the hair shaft giving it pigmentation. The hair shaft, visible above the skin surface looks unchanged during the three phases of hair growth. Two types of hairs are present in adults: vellus and terminal. Vellus hairs are fine (i.e., thin) usually with a diameter of 20– 50 μm, and are lightly colored. Vellus hairs are often referred to as “peach fuzz.” Terminal hairs are coarse (i.e., thick) usually with a diameter of 150– 300 μm, and are darkly colored. The type of hair produced by an individual follicle can change over time. For example, during puberty increased androgenic hormone levels cause vellus hair to be replaced with terminal hair in certain parts of the body. In androgenic alopecia, terminal hair can be replaced with vellus hair.
How does Laser hair removal work?
Selective photothermolysis is the cornerstone for laser hair removal. Simply, lasers are a series of light photons within one wavelength. For the therapy to work, we need a material that can absorb the energy of lasers; this material is called a chromophore. Melanin pigment gives hair and skin its color. Melanin is located in several areas of the hair follicle including the hair shaft, bulb, and outer root sheath. Two types of melanin pigment are synthesized by melanocytes: eumelanin and pheomelanin. Eumelanin is brown to black in color; it is the predominant type in dark Fitzpatrick skin types (IV-VI) and is found in darkly pigmented hair. Pheomelanin is yellow to red in color; it is the predominant type in light Fitzpatrick skin types (I– III) and is found in red and blonde hair. White and gray hairs have no melanin. like other chromophores, Melanin has a spectrum of absorption, it is like a straight declining line starting from 400 nm to 1200 nm. These are the main wavelength being used for laser hair removal: Alexandrite laser of 755 nm wavelength, the diode laser (810 nm), and the most common one is Nd: YAG (1064 nm). Intense pulsed light (IPL) is not a laser as it has an emission spectrum. Once the melanin is in contact with the laser beam, it will absorb the energy and turns it into heat. The heat will disrupt the hair’s normal cellular growth leading to hair removal.
Is Medical Laser hair removal permanent?
Laser hair removal is long-term; it can last 5 to 10 years. The duration after Medical laser hair removal varies according to the hair color, type, patient age and laser setting used.
Is Medical laser hair removal safe?
Laser in general and Medical laser hair removal is specific has been studied for a long time, and it is very safe. Some adverse effects such as erythema, burns, and skin irritation might happen, and this is mainly due to lack of experience. It is important to choose wisely when you trust your skin to somebody, Do not trust cheap and shady businesses as you will end up paying more to fix the problems
Is hair removal effective?
Absolutely, it is one of the most documented and practice laser procedures so far
Why does it take multiple sessions for Medical laser hair removal?
Medical Laser hair removal is most effective when a hair follicle is at a specific growth stage (anagen). Usually, hair follicles are at three different growth stages. It might take a hair follicle couple of weeks or months to go through the whole growth stages, depending on the body part. We need to hit the hair with the laser beam at that the anagen stage. One session will terminate most of the hair at that stage; then we have to wait for the hair that survives the first session to grow to that stage before we hit it with a laser again. There is no way for us to know what stage a hair follicle is at. By adjusting the setting and spot size, we can target as much hair as we could.
Are people with Blond, red, or grey hair good candidates for Medical Laser hair removal?
No, grey hair has no melanin. Pheomelanin found in red and blonde hair is poorly absorbed by laser.
Is medical Laser hair removal painful?
If the cooling and laser setting are set right, the pain should not be more than three on the pain scale. We can apply special pain cream 10 min before and procedure to ease the pain. Most of our clients are fine and describe the pain as easily bearable and way less than the pain of waxing.
I heard about painless Medical laser hair removal, what is that?
Some places advertise painless laser machines. Once you understand the principle, you would know that this is impossible. The problem with this so-called “painless machine” is that it will take more sessions and it will not get rid of the hair. Eventually, you will end up with fine hair, and you have to go back to shaving or waxing. If you are going to do it, just do it right for the first time.
What is the best wavelength for Medical laser hair removal?
This depends on the skin type and hair natural. We at Albany cosmetic and laser center, use Elite plus from cynosure, the best laser machine in the industry. This Medical laser hair removal machine has two wage length that allows us to accommodate the majority of client with skin type I-V.
Is Medical laser hair removal is only cosmetic?
No, laser hair removal is considered a privilege for some people, it is a medical necessity for some. Laser hair removal is approved for the following:
Permanent hair reduction • Hirsutism • Hypertrichosis • Pseudofolliculitis barbae
Why do prices vary significantly for medical laser hair removal?
It is important to know what machine is being used for Medical laser hair removal and what kind of person is doing it. Lots of people start importing cheap laser machines overseas and operate a laser hair removal salon in their basement or in the back of a nail or massage salon. you need to ask if the place is licensed and if the machine is registered with AHS. Most of these places are operating without a license or proper training and have no liability insurance to protect you in case of adverse reactions.