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Laser Hair Removal 800HR Heavy Duty

Ultra fast pain less session times and maximum spot size coverage with

growth_and_revitalization.jpgTechnical Features

pulse durations up to unsurpassed 400 ms
pulse frequency up to unsurpassed 10Hz
Works continuously for 8 hours
PhotoChill technology cooling system
1600 watts of stable power
No prep time

Photo Biotech Laser Hair Removal 800HRV System uses the most effective distinctive long pulse-width 808nm laser that can penetrate to hair follicle and results in the unmatched light absorption by the melanin. PBT 800HR laser energy is unsurpassed in absorption of the laser. The Latter then heats the hair shaft and hair follicle and disables the hair follicle and oxygen organization of the hair follicle. The advance cooling technology, cools and protects the skin resulting in a relatively painless and comfortable permanent hair removal experience.

Coverage

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Comparing 808nm and 1064nm

dihydrotestosteroneSemi conductor lasers are considered the most efficient light sources available and are particularly well suited for clinical applications including hair reduction. Studies show the use of the Photo Biotech HR diode laser system technology, a high-power, long-pulsed diode laser with a wave-length of 808nm, for laser hair eduction in a large population of patients with a variety of skin and hair types. Laser hair reduction operates on the principle of selective photothermolyis. This process combines selective absorption of light energy by the melanin in hair follicles with suitable fluences and pulse durations. In order to achieve maximum selectivity, the laser energy is applied in a pulse duration that approximately equals the thermal relaxation time of the target. In practice, the appropriate pulse duration maximizes the temperature rise of the hair follicle and minimizes the conduction of heat to the surrounding tissue, thus sparing adjacent structures from damage.

In order to achieve permanent hair reduction, sufficient light energy must be absorbed by the hair follicle. The melanin in the hair follicle absorbs 3-4 times more energy at 800 nm (the wavelength used in the Photo Biotech HR) than at 1064 nm (the wavelength of Nd:YAG lasers) This increased absorption means that the Photo Biotech HR laser can be used at significantly lower fluences to achieve hair reduction in contrast to the much higher fluences required for a 1064 nm laser. The effectiveness of laser hair reduction depends on the patient’s skin type. Laser hair reduction is typically more effective in lighter-skinned people (Fitzpatrick skin types I-III). The challenge associated with laser treatment for darker-skinned patients is to avoid surface skin (epi-dermal and upper dermal) injury due to absorption of light in the pigmented epidermis, while still causing selective destruction of the underlying pigmented hair follicles.

Recent clinical studies have shown that longer pulse durations combined with aggressive skin cooling provide a greater margin of safety when treating darker skin by allowing higher fluences and fewer side effects. Models of skin optics and heat transfer suggest that the entire hair follicle, including the outermost follicular structures (where the stem cells are located) can be selectively damaged with longer pulse widths than those typically employed (20-40 ms – 1064nm). The Photo Biotech HR can deliver pulse durations up to unsurpassed 400 ms. The thermal relaxation time for the hair follicle is dependent on its diameter; thus longer pulse durations are theoretically best suited for the treatment of medium to thick hairs7. These longer pulse durations can be safely used with higher fluences when combined with aggressive

Conclusion of the comparison

The current standard for laser hair removal is 808nm. The archaic 1064 nm is much less effective on darker skin types and result in significant more discomfort and pain and offer significantly longer session times and inconsistent results in all skin types.

Population Efficacy

hpsProblematic and excessive hair growth are seen more commonly in many ethnic populations, including South American, African, Asian- Pacific, Middle Eastern, Mediterranean and African-American subjects. Pseudofolliculitis barbae (PFB), “beard bumps” and ingrown hair is a common disorder in African-American, African-Caribbean and African subjects with tightly curled or coiled facial hair. In PFB, curved hairs emerge from curved follicles at an acute angle and penetrate the nearby skin causing a reaction that is characterized by papules, pustules or small nodules at the point of re-entry.

An 808 nm diode laser with contact cooling and very long pulse widths provides for effective, long-term hair reduction of medium to coarse pigmented hair, even in some darker-skin subjects. Very long pulse widths allow for all skin types to tolerate substantially higher fluences, and thus darker skin types can be safely and effectively treated. Additionally, preliminary results demonstrate that very long pulse widths do not significantly decrease the efficacy for medium to coarse hair reduction for any given fluence. Combined with aggressive contact skin cooling which reduces epidermal damage. It is important to note, however, that such cooling must occur not just prior (pre-cooling), but throughout the entire laser pulse, to maximize protection of the epidermis. This type of concurrent (parallel) cooling is effectively implemented by contacting the skin with a chilled sapphire tip transparent to laser light. The combination of longer pulse widths and the unique contact cooling system reduces skin damage and allows for higher fluences to be safely used on darker skin.

The Skin Ethnic Color Type (ECT) classifies patients for descriptive purposes based on their skin color and ethnicity. This new classification scale is believed to be significantly more useful in determining appropriate parameters for laser hair removal.

The effectiveness of laser hair reduction depends on many variables, including the
subject’s skin type. Laser hair reduction is typically more effective in lighter-skin people with dark hair than in darker-skin people because higher fluences can be safely used. The challenge associated with laser treatment for darker-skin subjects is to avoid surface skin (epidermal and upper dermal) injury due to absorption of light in the pigmented epidermis, while still causing selective destruction of the underlying pigmented hair follicles.

Treatment (laser epilation) operates on the principle of selective photothermolysis. This process combines selective absorption of light energy by the melanin in hair follicles with suitable fluences (energies per unit area) and pulse durations that are equal to or less than the thermal relaxation time (TRT) of targeted follicles in human skin (10-100 ms). However, additional studies indicate that the ideal pulse duration for medium to coarse hair reduction might be longer than the TRT of the hair follicle. Because the chromophore (melanin in the hair shaft and matrix cells) occupies a much smaller volume compared to the follicle, thermal diffusion is necessary for follicle destruction. Therefore, a much longer pulse duration appears to be required to achieve optimal results. Heat is conducted from the shaft and melanized portion of the bulb to surrounding structures according to the laws of thermal diffusion.

Before and after

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Specifications

Light Source Diode laser
Wavelength 808nm
Power 1600w
Output Energy 1-90J/cm2
Pulse width 10-400ms adjustable
Pulse frequency 1-10Hz
Spot size 12*15 mm
PhotoCool Cooling system Thermal electric cooling + water cooling+ Air cooling
+ sapphire contact cooling for laser head
Crystal temperature 0-4 °ree; C
LCD screen 8.0 inch 24 color multi color touch screen
Power requirement AC220V±10%、50Hz, AC110V±10%、60Hz
Laser water temperature 30°ree; C
Net Weight 60kg
Dimension 42*56*107(cm)