Complexe Iribiol serum balances and regulates sebum production while also reducing the appearance of dilated pores. The skin becomes visibly less oily, pores are tightened and surface irregularities are blurred to give a sensation of clear, pure skin. Sebum is a complex mixture of lipids, essentially triglycerides, produced by the sebaceous glands in the dermis, formed from a hair follicle. When secreted in excessive quantities, sebum dilates and clogs pores, creating an area conducive to bacteria development and therefore inflammation.