How long does the moisture last to overcome the dryness of late autumn?

I was worried about my dry and dull skin, so I heard about the Revicol Skin Booster. I heard that it directly injects collagen into the skin to provide both hydration and elasticity, and I am curious if this procedure improves skin texture naturally without looking artificial. I am also concerned about how long needle marks or injection marks (embossing) will remain after the treatment, and whether they will be noticeable by Monday if I get the treatment on the weekend while working. Since a natural look is my top priority, I would appreciate it if you could provide detailed information on how long the hydration lasts to combat late autumn dryness, as well as precautions to take after the procedure, such as avoiding public baths or exercise.