Nature's Cleansing Formula Gluten Free Vegan Natural Flavor Gentle & Dependable Overnight Formula Easy to Mix PowderColon Clenz Plus is ideal for those who want a gentle cleansing formula with probiotic support. The addition of Bacillus coagulans along with oligosaccharides make this the ideal formula for those seeking a little more. Bacillus coagulans is a probiotic that creates its own protective shell, allowing it to remain dormant through the stomach and then opening within the digestive tract.