I had deep profractional combined with erbium 3-4 years ago, my surgeon guaranteed my fine lines would be gone . I,was under general,anesthesia, downtime was only 8 days, lots of peeling, but end result was about 30 percent of what ninjas hoped. So disappointed I swore next time I would go for the big guns, the fully ablative Co2. When only a small percent of skin is treated with the fractionated lasers= small percent result..IMO! I am 56, told I look in my 30s...