I’ve believed for a long time based on the fact that your gut health and stress has been linked to so many health factors that it must also have a connection to skin care.
Check this link:
This is stronger evidence that this is true. This is not a heavy duty scientific read so don’t worry. The author uses yogurt probiotics to maintain gut flora and even suggests that using yogurt on your face would help to maintain your skin microbiome (skin’s healthy bacteria layer) which would help to maintain a clear complexion also. Take a read and decide for yourself.