Sebum Plug (not an insect)

Found on human skin, particularly in pores on the face, back, or chest; often expelled onto tissues or cloth.

N/A (Consists of accumulated oils, dead skin cells, and keratin)

N/A (It is inanimate debris expelled from a skin pore)

Risk: Can contribute to acne if not cleared. Benefit: While unpleasant, their removal can help clear pores, though squeezing is generally discouraged by dermatologists to prevent scarring.