Well - I have no idea about scientifically but I do both. In the summer I'll use a mentholated cream and cold water - oh yeah!! Keeps me cool for an hour at min .

Winter... scuttle and warm suds - like a warm cuddle from your mother at the front door after playing in the snow all day lol.

Either way though - after the shave is done, I use a splash of cold water before applying the aftershave. Fresh .