I had been wondering about this too. It'd be wonderful if we could preview hairstyles that we don't own yet, so that we can know whether or not we want them!

Otherwise, what's the use of this feature? Why do we want info on how to unlock a hairstyle that we already knew how to unlock, for we already own it? Shouldn't it be more useful to add info on how to unlock hairstyles we don't have yet? ;