The only technology customized for dog's oral microbiome in 15,000 years, Protektin42™ is a patented prebiotic dental technology for canine dental health developed by a microbiologist under Primal Health's TEEF! brand. It's an award-winning and clinically-proven formula that strengthens the oral microbiome using human-grade ingredients that inhibit the growth of destructive bacteria while enhancing protective bacteria essential for dental health. Just add Protektin42™ to drinking water for easy and effective daily dental care. Stay tuned for feline and equine dental health solutions.