Pro-Kolin Advanced for DogsPro Kolin Advanced for Dogs Pro Kolin Advanced contains beneficial micro organisms, several prebiotic sources, an optimal level of a dual source binding agent and soothing fibres to support gastrointestinal function. Ingredients: Probiotics A natural 'friendly' bacterium, Enterococcus faecium (DSM 10663 NCIMB 10415) 4b1707, which helps to keep the level of beneficial bacteria high and exclude pathogenic species. Preplex prebiotics A prebiotic,