This includes the use of intense pulsed light (IPL), which has been thoroughly studied and shown to be quite useful for this type of rejuvenation in removing the red and brown pigments, as well as affecting collagen. 
IPL
Fractional lasers, both non-ablative and ablative in nature, also can show dramatic improvements in the skin and associated clinical studies are reviewed here. 
Fractional lasers
Also described are radiofrequency (RF) fractional pin devices and RF microneedles used for non-invasive rejuvenation. 
RF microneedles
Picosecond lasers are showing very positive results in the non-invasive rejuvenation market. 
Picosecond lasers
Finally, absorbable sutures are being used to lift the skin and add volume in the skin over a duration of time. 
absorbable sutures