Barberine
-Berberine is a quality product for restoring gut flora and has been shown to promote epithelial barrier integrity and has antioxidant and anti-inflammatory effects. I use Berberine -500 by Thorne and you can start slowly by taking one to get accustomed to and then base your dosage off of 1-2 capsules a day for several weeks. I found it very helpful in restoring my intestinal flora and also if you really want to notice more positive effects try to eliminate refined sugar from your diet. I highly suggest dietary intervention as well because sugar contributes to low-grade inflammation and permeability of the gut.
Berberine should be avoided by those who are pregnant or breastfeeding, as it may worsen jaundice in infants or result in kernicterus, a condition in which prolonged high bilirubin levels can cause irreversible effects