EndoliftX introduces a micro-optical fiber — no larger than a hair — just beneath the skin surface through a micro-entry point. The fiber delivers 1470nm laser energy directly into the subdermal tissue, contracting collagen fibers immediately and triggering long-term neocollagenesis. The result: immediate visible tightening that continues to improve for 3–6 months as new collagen forms. Unlike surface lasers, EndoliftX works from beneath — where tissue laxity originates.