@ellaphant
I've had microdermabrasion done on my legs and arms to remove dead skin build-up. It does work and when dead skin is removed then the skin is more easily hydrated by moisturizers that otherwise would not penetrate.
I've also had the patented Hydrafacial done several times. That includes 'microdermabrasion' paired with hydrating serums.
Some people rather not use chemical exfoliants. Microdermabrasion is an alternative.
Yes, I agree about fractional laser treatment. I believe they are a rip-off. Real results from lasers come from CO2 or YAG types, not fractional. I've had several YAG laser treatments for skin tightening...it worked and my results are long lasting.