Radiofrequency (RF) skin tightening is a non-invasive cosmetic procedure that uses RF energy to heat the deeper layers of the skin, stimulating collagen production and tightening loose or sagging skin. The RF energy penetrates the skin’s layers, causing a thermal response that remodels existing collagen and promotes the formation of new collagen fibers over time. RF skin tightening is commonly used to improve the appearance of wrinkles, fine lines, and skin laxity on the face, neck, and body. The treatment is safe, comfortable, and typically requires little to no downtime, with gradual improvements seen over several weeks to months.