Skin damage and signs of aging can be repaired quickly.
If the new, "it" product sounds too good to be true, chances are its claims are false. Skin damage does not happen overnight or even over weeks. It cannot be magically repaired in a couple of days.
On average most people have at least three skin cycles--a cycle can be range from 21-40 days--depending on age. Your skin needs those three cycles before any results will be visible. That's at least 3 months.
Be cautious of any product that boasts about dramatically different skin within days.