TOXICOLOGY: 1 usually caused by overproduction of sebum, hormones (more testosterone than estrogen), bacteria, genetics, and environmental factors.

2 exposure to this can induce lesions that may be opened (whitehead) or closed (blackhead).

Question

1 usually caused by overproduction of sebum, hormones (more testosterone than estrogen), bacteria, genetics, and environmental factors.

2 exposure to this can induce lesions that may be opened (whitehead) or closed (blackhead).

LEIGHTON DWIGHT OBILLOS · Accepted Answer

1 Acne

2 Comedogenic chemicals

- These lesions can be avoided by using non comedogenic facial products.

1 usually caused by overproduction of sebum, hormones (more testosterone than estrogen), bacteria, genetics, and environmental factors. 2 exposure to this can induce lesions that may be opened (whitehead) or closed (blackhead).