Smells tend to stick to hair. If a person smokes cigarettes, you can smell it in their hair. If a person smokes weed, you can smell it in their hair. When somebody gets sprayed by a skunk, the smell stays in their hair the longest. If smells stay in hair, would it be a good idea to put a small amount of cologne or perfume in one's hair just so the smell is there for a longer period of time? Would there be any weird side effects like the hair changing color, or the scalp drying out?