What's the difference between epicatechin and cocoa flavanols?

Cocoa flavanols are the whole family of plant compounds in cacao; (-)-epicatechin is the single molecule inside that family most closely tied to healthy blood flow. Every epicatechin is a flavanol, but not every flavanol is epicatechin, which is why the epicatechin per serving tells you more than the flavanol total alone.

Flavanols are the family; epicatechin is one member

Think of cocoa flavanols as a category and (-)-epicatechin as a specific name inside it. The flavanol family in cacao includes catechin, epicatechin, and larger chained molecules called procyanidins. When a label lists "cocoa flavanols," it counts all of them together. When it lists "(-)-epicatechin," it names the single monomer researchers most often connect to endothelial function and healthy blood flow. This is why two products can share the same flavanol total yet deliver very different amounts of the one molecule doing most of the measurable work. Reading only the family total can hide a thin epicatechin fraction sitting underneath a big-sounding number.

Why epicatechin per serving is the number to watch

Cocoa flavanols and epicatechin appear to support nitric oxide production, which helps maintain normal, flow-dependent widening of blood vessels. EFSA recognizes 200mg of cocoa flavanols a day for maintaining normal blood-flow-dependent vasodilation, and epicatechin is a large part of why that holds. So the practical question is not just how many flavanols, but how much epicatechin per serving. The COSMOS study (Am J Clin Nutr, 2022, ~21,000 adults) used a concentrated cocoa extract capsule delivering about 500mg flavanols and roughly 80mg epicatechin daily. That is the amount used in the research, and a useful reference point when you compare what any single serving actually contains.

Where CCV-3 lands on both numbers

CCV-3 is built around the epicatechin fraction, not just the family total. One scoop delivers about 1,200mg cocoa flavanols and roughly 600mg (-)-epicatechin, which is 2.2x more flavanols and polyphenols than the amount used in the COSMOS research, and several times the epicatechin most capsule competitors list per serving. It arrives as a zero-sugar drink mix at about 27 calories with five real ingredients and non-alkalized cacao, so the flavanols stay intact rather than getting stripped by Dutching. You get the upside cacao is known for without the sugar and fat of a chocolate bar. Meet CCV-3 -> /products/harmonymd-pure-cocoa-flavanols-flavonoids

Is epicatechin the same as a flavonoid?

Not exactly. Flavonoids are a broad plant-compound class, flavanols are one subgroup within it, and (-)-epicatechin is a single flavanol molecule. So epicatechin is a flavanol, which is a flavonoid, but the words get more specific as you narrow down.

Why does epicatechin per serving matter more than the flavanol total?

Because (-)-epicatechin is the molecule most closely linked to nitric oxide and healthy blood-flow-dependent vasodilation. Two products can list the same flavanol total while delivering very different epicatechin amounts, so the epicatechin figure is the more useful comparison.

Does dark chocolate give me the same epicatechin as CCV-3?

Usually not. Dark chocolate rarely labels its flavanol content, cacao percentage does not equal flavanol content, and alkalizing (Dutching) can destroy roughly 60 to 90 percent of the flavanols present. CCV-3 uses non-alkalized cacao and lists both its flavanol and epicatechin amounts.

How much epicatechin was used in the COSMOS research?

COSMOS used a concentrated cocoa extract capsule providing about 500mg cocoa flavanols per day, including roughly 80mg (-)-epicatechin. One scoop of CCV-3 provides about 600mg epicatechin, well above that reference amount.