Soprano skin tightening effectively treats lax loose skin it uses infrared light to heat the deeper layers of the skin causing existing collagen fibres to tighten and smooth the heat stimulates fibroblasts to produce new collagen the lower face neck thighs upper arms and abdomen are popular areas to have treated immediate but temporary improvements will be seen with permanent improvements occurring 6 weeks post treatment important bits 1 soprano skin tightening has a wealth of clini