I recently came across a very interesting and all natural solution to prevent bruises — BUTTER!
Yep, if you expect that recent bump into the corner of your desk is going to leave an unsightly mark aka a bruise then try putting a little butter on it. Apparently the phosphates in butter help prevent bruising (similar to putting a raw steak on a black eye.. does anyone really do that?).
I haven’t tried this one out yet so let me know if you do first!