Seems it's always easiest to blame the technology....
Pearl is superficial ~ 100um (sun damage, etc.) - it isn't for deep wrinkles/rhytids
Pearl Fractional (a seperate device) IS for deeper dermal imperfections ~ 1mm (depending on...
Lots and lots of clinical studies with no side effects (improper use may cause a burn, for the less adept, but not for most)
mech of action - immediate collagen contraction, longer terms timulation of new collagen growth and elastin....
Temporary? or is it just that we cannot stop gravity or the aging process???