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Probiotics are live microorganisms beneficial to health when ingested properly. The gut microbiota has been shown to play a vital role in the regulation of immune function and physical health and so a strengthened skin microbiota limits the ability of pathogenic bacteria to start and spread an opportunistic infection. Thus, different clinical studies have shown that probiotics are effective against a wide range of common inflammatory skin diseases such as atopic dermatitis or acne, promising great potential in the dermatological area.