Sebum is an oily substance that protect and hydrate the skin’s surface. It mixes with fat molecules, called lipids, to form a protective coating on the skin. The sebaceous glands produce sebum. It ...

I have terrible acne, and I tend to pick at it. But I noticed that picking at it only makes it hurt more. How do you heal a popped pimple? What happens when blood comes out? Is it bad to pop ...

One of your skin pores gets blocked by dead skin cells or dirt and bacteria (that is always on your face) and causes an infection in the blocked pore. The redness is from the infection. As simple as ...