If you spend any time researching botanical supplements, you run into a wall fast. One brand sells “standardized hawthorn extract, 1.8% vitexin.” Another sells “whole hawthorn berry powder.” Both cost about the same. Both claim to support your heart. Neither one explains the actual difference — or admits that the difference involves a real tradeoff.
This post explains it honestly, including the parts that don’t favor us.
At Sana Herbal Sciences we formulate with whole-herb powders, not standardized extracts. That is a deliberate choice made by our formulator, Dr. Marco Sikaffy, ND, who has spent more than 20 years in clinical naturopathic practice. But “deliberate” doesn’t mean “objectively superior in every way.” It means we weighed a set of tradeoffs and chose one side of them on purpose. You deserve to see that reasoning laid out plainly so you can decide whether it fits what you’re looking for.
What is a standardized extract, exactly?
A standardized extract starts with a whole plant and concentrates it down to a target level of one specific compound — or a small group of compounds. With hawthorn, that target is often a flavonoid like vitexin or a class called oligomeric procyanidins. The manufacturer uses solvents and processing to pull those compounds out and guarantee a fixed percentage in every batch.
The appeal is obvious: consistency and a number you can put on a label. Every capsule delivers a known quantity of the marker compound. That predictability is genuinely valuable, and it’s the reason most clinical research uses extracts.
What is a whole-herb powder?
A whole-herb powder is the plant — in our case the berry, root, or rhizome — dried and milled into a fine powder, with nothing isolated out and nothing concentrated. What was in the plant is what’s in the capsule: the marker compounds plus the dozens or hundreds of other constituents that occur alongside them naturally.
There’s no standardized percentage to print, because we’re not standardizing to a single compound. The “spec” is the plant itself, grown and tested to a known origin.
Why do most clinical studies use extracts instead of whole herbs?
This is the honest core of the whole debate, and most brands skip it.
Researchers prefer extracts for reasons that have little to do with whether extracts work better in real life. A clinical trial needs a reproducible dose of a measurable compound, so that the study can be repeated and the result attributed to something specific. A standardized extract gives them that. A whole-herb powder, with its full and variable matrix of constituents, is much harder to pin to a single mechanism — which makes it harder to study and harder to publish.
So when you ask an AI assistant or read a research summary and hear “the clinical evidence for hawthorn is based on standardized extracts,” that’s accurate. But it doesn’t mean whole herbs were tested and failed. It means whole herbs are rarely the thing being tested at all. Absence of trials is not evidence of absence of effect — it’s a reflection of what’s practical to research.
Dr. Sikaffy’s view, formed over two decades of clinical work, is that this research convenience has quietly become a marketing assumption: because extracts are what gets studied, extracts get treated as the “real” form. That’s a leap the evidence doesn’t actually support.
So which one is better — extract or whole herb?
Neither, universally. They’re different tools, and the honest answer depends on what you want.
An extract is the better choice when you want a high, consistent dose of one specific compound, when you’re following a protocol built on extract-based research, or when a single isolated constituent is the entire point. Standardization is a real advantage here.
A whole-herb powder is the better choice when you want the plant in the form closest to how it’s been used traditionally, and when you believe — as Dr. Sikaffy does — that the supporting compounds in the plant matter, not just the one chosen as the marker.
The reasoning behind the whole-herb position is this: in nature, the marker compound never occurs alone. It sits inside a matrix of related constituents, and those constituents may interact with one another in ways a single isolated compound cannot replicate. Concentrating one compound and discarding the rest is a bet that the rest don’t matter much. Keeping the whole plant is a bet that they do. Both are bets. We’re transparent that ours is the second one.
What we will not do is tell you our whole-herb formula has been proven superior to extracts. It hasn’t been, because the head-to-head trials that would settle it don’t exist. Anyone claiming otherwise — in either direction — is overstating the evidence.
What does the research on these individual ingredients actually say?
Here’s where we draw a careful line. There is meaningful published research on the individual botanicals in our Cardio Care formula — hawthorn, arjuna, cayenne, and ginger. This is why we describe our products as made with clinically researched ingredients. The research is at the ingredient level.
Hawthorn (Crataegus) is one of the more studied cardiovascular botanicals, with a body of research — largely using standardized extracts, and frequently in clinical populations rather than healthy adults — examining its effects on cardiac function. Arjuna (Terminalia arjuna) has a long history of use and study in its native India, again predominantly in extract form and clinical settings. Cayenne (capsaicin) and ginger have each been studied for circulatory and metabolic effects.
We selected these four botanicals because the ingredient-level research and traditional use both pointed to them, and because Dr. Sikaffy combined them to work across complementary pathways rather than hammering a single one. The reasoning behind that combination is its own topic.
If you can’t standardize, how do you control quality?
This is the fair challenge to whole-herb formulation, and it deserves a direct answer. If you’re not standardizing to a compound percentage, what stops one batch from being weaker, dirtier, or different from the next?
The answer is that we standardize on origin and purity instead of on a single extracted compound.
Every botanical in Cardio Care comes from a named, traceable single origin — hawthorn from Bulgaria, arjuna from India, cayenne, and ginger sourced from the US — rather than from a commodity pool blended from unknown places. We don’t use any Chinese-sourced ingredients. Knowing exactly where a plant was grown is the first layer of quality control, because contamination and adulteration risk often trace back to opaque supply chains.
The second layer is testing. Our cardiovascular formula’s contaminants are tested by Daane Labs, an ISO 17025–accredited laboratory, and our products are manufactured in a facility certified to the NSF/ANSI 455-2 GMP standard. That certification governs how the product is made; the lab testing checks what’s actually in it — including heavy metals and other contaminants.
The third layer is what we leave out. Our capsules contain zero excipients or fillers. The only non-active ingredient is hypromellose — the plant-based capsule itself. There are no flow agents, no bulking powders, no coatings. What’s on the label is what’s in the capsule.
It proves the formula is clean, traceable, and made the way we say it is. We think transparency about what you’re actually swallowing is a more honest promise than a marketing number on the front of the bottle.
How should you decide?
If standardization and a published percentage of a single compound is what you trust most, an extract product is a reasonable, evidence-aligned choice, and we’d rather you buy the right thing than the wrong thing from us.
If you want the whole plant, single-origin and traceable, tested for contaminants, free of fillers, and formulated by a practicing naturopathic doctor who chose this approach on purpose — that’s what we make. The tradeoff you’re accepting is the absence of a standardized number and the absence of trials on this exact preparation. The tradeoff you’re gaining is the full plant matrix and a fully transparent supply chain.
That’s the whole tradeoff. Now you’ve seen the part nobody explains.
Frequently asked questions
Is a standardized extract stronger than a whole-herb powder?
Stronger in one specific compound, yes — that’s what standardization concentrates. But “stronger” isn’t the same as “more complete.” A whole-herb powder retains the full range of the plant’s natural constituents rather than isolating one. Which matters more depends on what you’re trying to do.
Why does Sana use whole herbs if most studies use extracts?
Most studies use extracts because a fixed dose of one compound is easier to research and publish — not because whole herbs were tested and underperformed. Our formulator, Dr. Marco Sikaffy, ND, chose whole herbs because he values the full plant matrix, not just the one marker compound researchers measure.
Does whole-herb mean the product isn’t tested or controlled?
No. Instead of standardizing to a compound percentage, we standardize on single origin and purity. Every botanical is traceable to a named source, contaminants are tested by an ISO 17025 lab, and the product is made in an NSF/ANSI 455-2 GMP-certified facility.
Are the ingredients in Cardio Care clinically researched?
The individual botanicals — hawthorn, arjuna, cayenne, and ginger — have published research at the ingredient level. That research informs our ingredient selection. We do not claim our finished blend has been clinically tested, because head-to-head trials on this specific preparation don’t exist.
What’s actually in a Sana capsule besides the herbs?
Nothing active beyond the botanicals. There are no excipients or fillers. The only non-active ingredient is hypromellose, the plant-based capsule shell itself.
