The most effective for wrinkle removal and collagen regeneration is the CO2 laser that can remove major wrinkles and restore collagen with one treatment. Ablative treatments like the CO2 laser remove the full epidermis and outer dermis by vaporizing them. New collagen develops in the dermis and a new epidermis grows back, creating a youthful, non-sun-damaged appearance after two weeks. Results are amazing and dramatic, but two weeks of down time are needed during the initial healing process. Less aggressive fractional CO2 lasers heal somewhat faster, with less dramatic but very acceptable results. Collagen continues to regenerate in the dermis for three to six months.
Non-ablative lasers require multiple treatments separated by three to six weeks and offer some collagen regeneration after the treatment series. Non-ablative lasers such as intense pulsed light, yag laser and fractional erbium offer improvement through the stimulation of collagen in the upper dermis. Fine wrinkles improve but results are more subtle. Many of the non-ablative lasers will also improve skin color by reducing blotchy sun damage and can improve skin texture. These less-aggressive rejuvenation lasers do not require downtime or days off work.
When considering laser rejuvenation, always check into the experience of your laser specialist before undergoing treatment.