Illustration of a sebaceous gland (orange) secreting sebum (clear) into a hair follicle. The sebum will exit the hair follicle via a pore. Sebum is an oily substance that lubricates and protects the skin. Overproduction of sebum can lead to blocked pores, which allow bacteria present to multiply, causing inflammation and a pimple or pustule. | |
Licence : | Libre de droits |
Crédit: | Science Photo Library / DESIGN CELLS |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |