The growing market for cosmetic procedures demands safe and effective treatment modalities with little or no downtime. Traditional laser procedures for
skin resurfacing and
wrinkle reduction can be divided into
ablative
(provoking epidermal injury) and
non-ablative (non-specific dermal bulk heating).
Many ablative and non-ablative lasers are available. With ablative (CO2 or Er:YAG) lasers, a pass of energy vaporizes a thin layer of the skin and leaves a layer of coagulated cells. When healing is complete,
the skin is smoother and tighter due to shrinkage of dermal collagen. These lasers have been considered the gold standard for ablative
skin resurfacing and wrinkle reduction but the risk of complications is high,
considerable discomfort can be involved and recovery time can be long(up to 4-6 weeks).
Non-ablative lasers also improve the appearance of the skin, but without epidermal damage by gentle dermal heating. There is less discomfort and downtime but lower
efficacy with non-ablative lasers.