Your skin produces sebum, which can be waxy or oily. Sebum production can contribute to acne, but it also moisturizes and offers protection for your skin. Sebum is an oily, waxy substance produced by ...

A skincare expert has revealed the two easy ways to tell the difference between what may be a blackhead, or just a blocked pore - with one being 'darker and more raised'. Rebecca Bennett, a Johnson & ...