Laser treatments are non-invasive procedures, making them a popular choice for those looking to get rid of acne scars. It’s a quick procedure (performed in a series of sessions) with minimal discomfort and minimal healing time. Laser treatment works by shooting out pulses of intense light that penetrate the skin’s layers. This stimulates collagen production, increases the rate of cell renewal and helps tighten up the skin. There are four general types of laser acne treatment: fractional laser treatment, carbon dioxide laser treatment, erbium laser treatment, and pixilation. A licensed professional can help you determine which type of treatment is best suited to your skin.
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It is widely suspected that the anaerobic bacterial species Propionibacterium acnes ( P. acnes ) contributes to the development of acne, but its exact role is not well understood.  There are specific sub-strains of P. acnes associated with normal skin, and moderate or severe inflammatory acne.  It is unclear whether these undesirable strains evolve on-site or are acquired, or possibly both depending on the person. These strains have the capability of changing, perpetuating, or adapting to the abnormal cycle of inflammation, oil production, and inadequate sloughing of dead skin cells from acne pores. Infection with the parasitic mite Demodex is associated with the development of acne.   It is unclear whether eradication of the mite improves acne.