This review found that your gut bacteria and skin bacteria are connected—they talk to each other through your immune system. While lab studies show probiotics (especially taken orally) could help reduce acne inflammation and improve gut health, actual human trials are limited. The research suggests probiotics *might* work as a backup option or alongside other acne treatments, but we don't have enough real-world data yet to say they're a replacement for proven acne treatments.

This was a narrative review—meaning researchers looked at existing studies on probiotics, acne, and the gut-skin connection to summarize what's known so far. It's not a new experiment, so it's only as strong as the studies it reviewed.

Funding not disclosed in abstract