Golden Link Plus Prebiotics & Probiotics, 2.12 Oz. Canine Specific Probiotic Powder Aids Healthy Digestive & Immune System in Dogs. Effective for Diarrhea, Constipation, IBS/IBD & Nutrient Absorption. Highly effective in Puppies, Seniors, dogs that are physically or mentally stress, have IBD or IBS. Probiotics are Canine Specific. Studies show that Species Specific Probiotics are most beneficial. Use for Dogs with itchy skin, Recovering from injury or surgery, highly stressed or rescued dogs . Golden Link is proprietary composition of highly purified Nucleotides, building blocks of DNA & RNA. Nucleotides are imperative to organisms. Cell proliferation is totally dependent on Nucleotides.