Nah-ah-ah! Not so fast there, you!! Exactly where do you think your going to apply that wrinkle cream, anyway?
FOR EXTERNAL USE ONLY means, "to be used on the outside, not within or upon any orifices," bodily or otherwise.
Often seen on a number of products including topical medicines and lotions, shampoos, and cosmetics.
So, if you get that lipstick in your eyes, drink your hair conditioner, or apply that wrinkle cream gingerly to your anus you had better call the poison control center, buddy!