Lasers for acne scars

https://www.instagram.com/drdavinlim/ More on acne scars & how to treat Lasers for acne scars Picosure was the first picosecond laser made by Cynosure. This YouTube post outlines my personal experience with this laser. This viewpoint may not be shared by other Dermatologists. Background: Pico lasers have been marketed as the next generation Q-switch laser. Pico is the term used to describe the pulse duration of these lasers. Originally developed for faster and more effective tattoo removal, the employment of pico lasers extend to treatment of pore sizing, pigmentation, dermal remodelling/wrinkle treatments and acne scars. Dermal science: in the context of acne scars, pico lasers perform two biological effects to remodel collagen. The first effect is on the top layer of the skin called the epidermis. With ultra-short pulse durations keratinocytes are literally blown apart. The result of this controlled epidermal injury is the formation of LIOB or laser induced optical breakdown. Picosure’s LIOBs are primarily located in the epidermis due to higher absorption of melanin, whist longer wavelength lasers such as Picoway, & PicoPlus have LIOBs in the upper dermis. The proposed effects on collagen remodelling is secondary to the release of cytokines and growth factors generated from epidermal injury with a flow on effect in the dermis. The second proposed effect of pico lasers in the context of scar remodelling is the ‘spring effect’ to the dermal layers. Shock waves from hi