Picolaser (picosecond laser)
Picolaser are Q switch laser , these lasers use ultra short pulses like the picosecond duration to achieve desirable effects. They have an extraordinarily short pulse duration of 300–900 picoseconds.
Working
How do they work?
These lasers selectively targeted melanin in the pigmented lesions and pigment particles in tattoos with minimal side effects. These work by a more photomechanical (rapid heating of melanosomes on absorption of these wavelengths which results in thermal expansion which eventually causes explosion of these particles) than photothermal mechanism, which causes pigment fragmentation more efficiently while minimizing thermal damage to the surrounding tissue.
Indications
The use of picosecond laser in dermatology was originally focused on optimizing the removal of unwanted tattoos. Subsequent advances in this technology have broadened its clinical indications to include treatment of benign pigmented lesions, photodamage, melasma, and scar revision.
Pre treatment
avoidance of excessive sun exposure (travel) , stopping of actives 2 days prior to treatment. A test spot is done prior to covering the desired area.
Treatment
the targeted area is marked and covered with a numbing cream. The parameters are decided by dermatologists based on your skin type.
Post treatment
mild redness, swelling , discomfort at the site which subsides in 3-4 days. Advised for sunscreen and photo protection. Washing of face after 6 hours with mild cleanser. Avoidance of actives for 4-5 days post procedure. Avoid sauna, massages, facial for 2 weeks post procedure.
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