Prebiotics are high-fiber food components that serve as a source of food for bacteria in the gut's microflora. When these fibers are metabolized, probiotic bacteria produce end products known as postbiotics. Postbiotics include compounds such as short-chain fatty acids, peptides, and other metabolites that are studied for their roles in gut physiology and interactions with the skin.  Scientific research has explored how prebiotics, probiotics, and postbiotics may influence the gut-skin axis, a term used to describe the relationship between intestinal microbiota and skin function. This includes areas such as barrier integrity, hydration, and moisture balance. While findings are still being investigated, combining these elements in supplements is often referred to as a synbiotic approach. Synbiotics is the term used for formulations that contain both probiotics and prebiotics, such as Collagen Boozt.