Re: sebaceous glands? What if the sebaceous glands in our lips don't produce sebum.

"The skin on your lips doesn't produce oil. No sweat glands there... Can you recall a time in your life when your lips were oily (like your face can get, some people more than others)."

How do you know this?? A sebaceous oil gland is different than a sweat gland. I have alot of sebaceous oil gland on my lips(tiny white dots) and my lips seem to be oily sometimes.