Skin laxity is loss of skin firmness and elasticity associated with aging, photodamage, or substantial weight loss.
How microfocused ultrasound, monopolar radiofrequency, and RF microneedling differ for skin tightening, and how clinicians choose the right energy-based option.
After rapid weight loss on GLP-1 drugs, loose skin on the abdomen, arms, and thighs is common. What the evidence says about energy-based tightening, biostimulators, timing, and when surgery is the realistic option.
What 41 studies show about RF microneedling efficacy, how devices differ, and why the FDA's 2025 serious-complication reports limit broad safety claims.