The <span>type of gland that can become blocked and form a blackhead is: Sebaceous
Sebaceous funcion's is to lubricate and waterproof the skin and hair of mammals with an oily substance. Sometimes, this oily substance could block the pores of your skin, which caused the dirt to gathered in that pores and forming a blackhead.</span>
To have a good sense of self means to recognize limits and to know how comfortable you are with something. It helps you by making healthy decisions that are right for you.
