The first thing to consider is what scars are and how does does the system relate to them. It would seem to me that tho the scar tissue replacment would be a part of normal activity, as reported by fasters ect, it may not be very high on the bodies requirement list. So if we want to speed up scar replacment we should consider how healthy our systems tissue and fluid activities are in the first place ( clean the blood ect). If we put a dab regulary or evan soak the area in a high concentration of enzymes,aminos ect, like urine, it would follow that we are assiting any process in the proximity. Depending on how healthy one is the assistence might be noticable or not. If ones urine is not full of typical toxins found in typical diets then the added items should only help, but the caveat is again how each ones system is different, and this is why we get the differing results with this and so many other therapies.
There is a trucker in oregon who had burn scars over a fair amount of his body and he used everything, but what finally worked for him was some MSM ointment. Since MSM,nutricinal sulfer, is such a needed constituant of basic cell health, it is the neutral substance that allows permeability, it would follow why this therapy was so effective. Add the healthy non toxified urine to the mix and it ---- oh yeah the cosmetic industy is already doing it with all the urine they use, if only they would promote actual health understanding, more products would probably be more noticable effective.