Advancing the Science of Polyphenols.

POLYPHENOL SCIENCE

The Most Important Molecules in Your Gut May Be the Ones Your Body Barely Absorbs.

For decades, that was treated as a flaw. Polyphenols, the compounds that give plants their color, bitterness, and defense, are poorly absorbed in the small intestine, so they were dismissed as biologically uninteresting. We see it the opposite way. Because they aren't absorbed, most polyphenols travel intact to where the real conversation happens: the gut (1).

This is the science our entire company is built on.

8,000+

Distinct polyphenols identified in nature

90%

Reach the colon, where they interact with the gut microbiome

95%

Pass through the small intestine before being transformed by gut microbes

7

Polyphenols used across KBS formulations

WHAT IT IS

What Polyphenol Science Actually Is

Polyphenols are a large family of plant compounds, thousands of them, including flavonoids, tannins, and phenolic acids. Polyphenol science is the study of what these molecules do once they reach the gut, and how that interaction shapes human health.

The key insight is that polyphenols and your gut microbiome have a two-way relationship. Your gut bacteria break polyphenols down into smaller, often more active compounds: metabolites like urolithins and equol that can do things the original molecule never could (2, 3). In return, the polyphenols reshape the bacterial community itself, feeding beneficial organisms while suppressing the ones driving dysfunction (4).

Researchers have a name for a compound that does both at once. It is called a "duplibiotic." Polyphenols are the clearest example we have (4).

WHY POLYPHENOLS

Why Polyphenols Are Our Focus

Most gut interventions are blunt. They suppress a symptom, kill broadly, or flood the system with something the body quickly clears. Polyphenols work differently, and that difference is the reason they sit at the center of every KBS formulation.

They remain active throughout the digestive tract. Depending on the molecule, polyphenols can interact with digestive tissues, signalling pathways, and the gut microbiome throughout the gastrointestinal tract, from the upper to the colon. (1, 2).

They are precise, not broad. Unlike fiber-based prebiotics, which push the whole ecosystem in one direction, different polyphenols target distinct microbial populations. That specificity is what makes mechanism-based formulation possible (4).

They strengthen the barrier. Certain polyphenol metabolites support the integrity of the intestinal lining, reinforcing the tight-junction proteins (occludin, claudin, ZO-1) that decide what gets through your gut wall and what does not (5).

They turn into something stronger. The metabolites your bacteria produce from polyphenols are frequently more bioavailable and more bioactive than what you swallowed, which is why two people can respond differently to the same compound, depending on the bacteria they carry (2, 3).

This is what Start with Understanding means in practice. We do not begin with ingredients. We begin with mechanisms, then select the compounds most likely to influence them. Polyphenols are one of the most powerful tools we have to do that.

OUR RESEARCH

Our Own Work

KBS Research was founded on this principle. Our lead formulation is built around quebracho, an exceptionally large polyphenol that passes through the gut without being absorbed, acting directly in the lumen where bacterial gas is produced, paired with horse chestnut, which targets the enzymatic step behind methane production (6, 7). That mechanism has been the subject of clinical research, including a pilot study in patients with methane-predominant overgrowth (7).

We do not start with a marketing story and look for ingredients to fit it. We start with a mechanism, and build around the molecule that drives it.

RESOURCES

Resources