Radiofrequency (RF) skin tightening is a non-surgical cosmetic procedure that uses heat to stimulate new collagen and elastin production in the skin, which results in tighter, firmer skin. During treatment, a handheld device is moved over the skin, generating heat that penetrates the lower layers, while the surface remains protected. The procedure can reduce wrinkles and sagging, improve skin texture and tone, and is safe for most skin types with little to no downtime.