That blemish on your face is actually a toast crumb. The reason you're confused is that the lighting in your bathroom is so terrible you can't tell the difference between a chocolate dribble and a freckle. If you think muted lighting will make your yellowing teeth or receding hairline less noticeable (to you anyway), get a grip on yourself.
Poor lighting conditions in a bathroom can be dangerous. Don't take an unexpected tumble because you prefer candlelight to the harsh light of a fluorescent fixture. Install bathroom-rated lights over your sink and near your tub or shower. It'll save your guests the inconvenience of having to carry a flashlight around with them.