The skin that makes up your lips isn't actually red. There are three layers of nearly translucent skin that form your lips. Beneath them is the mucous membrane layer that contains capillaries close to the skin's surface. The blood in these capilla...
The skin that makes up your lips isn't actually red. There are three layers of nearly translucent skin that form your lips. Beneath them is the mucous membrane layer that contains capillaries close to the skin's surface. The blood in these capillaries makes your lips appear red.
The skin that makes up your lips isn't actually red. There are three layers of nearly translucent skin that form your lips. Beneath them is the mucous membrane layer that contains capillaries close to the skin's surface. The blood in these capillaries makes your lips appear red.