Collagen is a structural protein in the skin, but the collagen in this cream works differently from the collagen your skin naturally contains. In topical cosmetics, collagen is used to form a light moisture-binding film on the skin surface. That means it does not replace lost collagen in deeper skin layers, but it can make the skin feel softer and look more even by holding moisture close to the surface and smoothing rough texture. So the benefit you can realistically expect is immediate surface comfort and a calmer, less dry appearance, not a change to the deeper structure of your skin.
The rest of the formula supports this surface moisture effect. Argan oil reduces moisture loss from the skin surface and helps the skin feel less rough; vitamin B5 attracts water; vitamin E acts as an antioxidant. Together, they make this more of an intensive hydrating cream than a collagen-boosting treatment. If your goal is hydration and comfort, this product makes sense. If you expect collagen to fill wrinkles or rebuild skin tissue, this would not be the right product for that purpose.