Lactoferrin is a biofilm buster, found in colostrum. Colostrum is the best response to dysbiosis and leaky gut, has helped me tremendously. Raw organic fresh colostrum is best, but powdered does the trick too.
Also, if it's die-off you're looking for, theres a specific supplement i recommend. (not selling or hawking products, just speaking from experience what my naturopath gave me). GI synergy by Apex. It's an herbal and fatty acid blend that includes oregano oil, garlic, pau darco, and undecylenic acid which is great for candida.
I also made the mistake of overdoing it on fats. Try to keep fat (avocado, almond butter etc.) lower