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No. It can make skin firmer, denser and better hydrated, which reads as tighter. Actual lifting of tissue isn't something a topical can do, and any product claiming otherwise is describing a temporary tightening film.

Retinoids have the stronger evidence. Peptides are gentler and easier to stay on. If you tolerate a retinoid, that's the priority; peptides are a good addition or a good substitute if you don't.

They help with puffiness and they help serums absorb, and the massage feels good. They don't lift and they don't build collagen. Use light pressure with an oil or serum underneath.

Different question, mixed evidence. Some studies on oral collagen peptides show modest improvements in skin elasticity; it's not the settled science the marketing implies. Sunscreen and a retinoid remain the better-evidenced spend.