Information about Laser and Intensed Pulsed Light

Laser Depilation

The key to successful hair removal is destroying the entire follicle, down to the bulb and its germinating centers, while preserving surrounding healthy tissue. Destroying the hair follicle during its active growth cycle is another key to producing long-term hair reduction. Consequently, multiple treatments scheduled several weeks or months apart are typically required to achieve optimal results. Lasers and IPL light sources gently remove unwanted hair based on the principle of selective photothermolyisis. This refers to the process whereby light energy causes thermal injury to the hair follicle. The light penetrates through the skin and is absorbed in the target pigment (melanin) found in the hair shaft. This energy absorbed in the shaft causes the temperature to reach a sufficiently high level in the hair follicle so that the targeted hair structures are destroyed and regrowth is inhibited.

Photorejuvenation

As the population ages, ever-increasing numbers of people are interested in improving their appearance. IPLTM technology can be used to help restore the skin's youthful appearance. IPL technology improves the appearance of photoaged skin, removes age spots (sun-induced freckles), most benign brown pigments, and redness caused by broken capillaries through a process called photorejuvenation for face and body. The process is ideal for patients with active lifestyles because the procedure requires no downtime and produces few side effects. The gentle, non-ablative treatments use broad spectrum light to treat the face, chest, neck and hands--virtually anywhere that sun damage shows.

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Miguel Francischelli Neto MD PhD

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LASER physics

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