Bacteria living on our skin can cause zits -- gross. But Laci Green's got news from a study that shows not all acne bacteria are evil! Some might even be helping us out.

"Why Some People Get Acne and Others Don't"
"The bacteria that cause acne live on everyone's skin, yet one in five people is lucky enough to develop only an occasional pimple over a lifetime."

"Propionibacterium acnes Strain Populations in the Human Skin Microbiome Associated with Acne"
"We compared the skin microbiome at the strain level and genome level of Propionibacterium acnes, a dominant skin commensal, between 49 acne patients and 52 healthy individuals by sampling the pilosebaceous units on their noses."

"Why Some People Get Zits and Others Don't"
"In a boon for teenagers everywhere, a UCLA study conducted with researchers at Washington University in St. Louis and the Los Angeles Biomedical Research Institute has discovered that acne bacteria contain "bad" strains associated with pimples and "good" strains that may protect the skin."

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