Variations in mechanical properties of treated skin confirm skin tightening after CO2 fractional resurfacing laser treatment. (J Cosmet Dermatol; 11(3):201-6) Researchers measured dermal elasticity using suction applied with an in vivo skin elasticity meter (Cutometer). Significant improvement was shown in elastic (R2 +5.9%), viscoelastic (R8 -9.4%), fatigue (R3 and R9 -16.2% and -19.7%, respectively), and thickness (R0 -14.9%) parameters. Laser treatment was performed with the SmartXide Dot (Deka, Firenze, Italy) CO2 fractional resurfacing device. Patients were offered quantified analysis using the Cutometer before and after treatment. Seventeen patients were included in the study with 61 areas treated. Median delay between before and after cutometric evaluations was 80 days.