Question about Primal Defense and colonizing the gut

I've read through a lot of the Candida Forum and it seems that the most important thing is to balance the gut with good bacteria. If I'm using Primal defense, three capsules a night before bed, am I getting all the probiotics and good bacteria I need to get my gut in order? I've read that Primal defense doesn't colonize. If it doesn't colonize, what does it do, then? And what benefits does it have then? Also, what can I take besides kefir to colonize then? I can only take yogurt from goat milk 'cause I'm intolerant to casein. Any other ideas? Thanks a bunch, guys