Firming in this product is best understood as a skin-feel improvement rather than a physical or visible lift. The source describes the effect as skin that feels smoother, more supple and more toned to the touch. The retinol component encourages more even renewal of the upper skin layer, which helps the surface feel less coarse and look more refined, while its antioxidant action helps protect against external stress factors that contribute to a tired-looking appearance. The panthenol adds a soothing, softening element that helps the skin hold moisture better and reduces the tight feeling that can follow washing.
So the firming result comes from two combined effects: a smoother, more even surface texture and better moisture retention. You would notice it as skin that looks more polished and feels nicer to touch, not as a tightening or lifting effect. This is a maintenance product for regular use — it fits into a routine when body skin feels dry, slightly rough or dull, and it prepares the skin well before applying lotion or body cream. Expect gradual, consistent improvement over time rather than an instant change.