Serious Narcotic Dandruff Situation

This just in via BBC. Two women from Derby have been arrested in Jamaica whilst trying to board a plane heading for London. Police suspect that they were trying to smuggle cocaine with a street value of £170k under their wigs or they have a really serious case of dandruff.
Now there's a thought maybe with a little judicious genetic engineering we could develop a narcotic dandruff and slash our drug-miles down to the short trip from head to nose. How green is that?