How does the role of collagen in this serum differ from that of injectable collagen? — Aging Face Serum Hyaluron+ with Hyaluronic Acid, Collagen, and Matrixyl™, 20 ml - Victoria Beauty

Collagen in cosmetic products — including this serum — acts differently from collagen used in injection procedures. The collagen molecules in cosmetics are too large to penetrate the deeper layers of the skin, so its main function here is to moisturise and soften the surface: it forms a film on the skin that helps retain moisture and makes the texture feel smoother to the touch.

The product description calls collagen one of the building blocks of the skin that moisturises it, making it smoother and firmer; however, when applied to the skin, it does not “replenish” the skin's own collagen in the way injections do.

To work on skin density and texture, the formula includes Matrixyl, a peptide complex. Peptides are small molecules that interact better with the skin at surface level and are used in anti-ageing formulas to improve visible texture and the feeling of firmness.

The serum therefore combines two approaches: collagen and hyaluronic acid provide hydration and comfort, while the peptide complex complements this action. Do not expect a cosmetic serum to have the effect of injection procedures — these are different formats with different mechanisms.