What “Extract Weight” Actually Means on a Supplement Label

Here’s a line from a real supplement label:

Dihydromyricetin — Ampelopsis grossedentata (leaf) extract — 300 mg

Read quickly, that looks like 300 mg of dihydromyricetin. It isn’t necessarily. It’s 300 mg of a plant extract that contains dihydromyricetin — and unless the label also tells you what percentage of that extract is the active compound, the actual amount of active is not stated anywhere on the panel.

This is the single most common way a supplement label can be simultaneously accurate and uninformative. It’s worth ten minutes of your attention, because once you can spot it you can read any supplement label in the category — ours included.

These statements have not been evaluated by the Food and Drug Administration or Health Canada. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before use.

Extract weight vs. active weight

Most botanical ingredients don’t arrive as a pure compound. A plant is harvested, and the desired constituents are pulled out with a solvent and concentrated into a powder — an extract. That powder is part active compound and part everything else that came along with it.

So there are two different numbers you could put on a label:

Extract weight — how much of the concentrated plant powder is in each serving.
Active (constituent) weight — how much of the specific compound you actually care about is in that powder.

Both are legitimate. They’re just not the same number, and the gap between them can be enormous. Two shorthand conventions tell you about the relationship:

Extraction ratio (“10:1”, “50:1”). This says how much raw plant went in per unit of extract out — 50 kg of raw herb concentrated into 1 kg of extract is “50:1.” It tells you about concentration relative to the raw plant. Crucially, it tells you nothing about how much active compound is in the finished extract. A “50:1” extract is not “50× the active”; it’s a processing description.

Standardization (“standardized to 98% dihydromyricetin”). This is the useful one. It states what proportion of the extract is the named compound. If a label says 1,200 mg of vine-tea extract standardized to 98% DHM, you can do the arithmetic: roughly 1,176 mg of DHM. The number isn’t printed, but it’s determinable.

Without a standardization percentage, an extract weight cannot be converted into an active dose. Not by you, not by anyone reading the label. That’s the whole trap.

The three label patterns

Every supplement label in this category falls into one of a few patterns. Once you know them, sorting a shelf takes seconds:

What the label shows	Can you determine the active dose?
”Dihydromyricetin 1,000 mg” — the compound named, with its own amount	Yes — it’s stated outright
”Vine tea extract 1,200 mg (std. to 98% DHM)” — extract + percentage	Yes — computable (~1,176 mg)
“Dihydromyricetin — plant extract — 300 mg” — extract weight, no percentage	No — the active amount isn’t stated
”Proprietary blend 1,551 mg” — DHM somewhere inside a blend total	No — no individual amounts given

Note that the third row is the sneaky one. It has a compound name and a clean milligram figure and no proprietary blend, so it passes every quick heuristic people use for “transparent label” — and still doesn’t tell you the dose.

A worked example, with the brand’s own documents

Take the label line at the top of this article. It’s from Toniiq’s “Ease 50:1”, and it’s a good teaching case precisely because the rest of that label is genuinely well-disclosed — every ingredient carries a discrete amount, there’s no proprietary blend.

Two things in the brand’s own published documents show that the 300 mg is extract weight rather than DHM content:

1. The label’s own convention. On the same panel, other ingredients list their active constituent as an indented sub-line beneath the extract:

Reishi Mushroom extract — 1,300 mg └ Polysaccharides — 455 mg

Milk Thistle 50:1 extract — 200 mg └ Silymarin — 160 mg

The dihydromyricetin row has no such sub-line and no standardization percentage. By the label’s own formatting logic, the 300 mg is sitting in the extract-weight position, with the constituent amount simply not given.

2. The Certificate of Analysis. Toniiq publishes a COA for the product, which is more transparency than most brands offer. Under its active-ingredients assay, the relevant row reads “Vine Tea Extract — 300 mg,” verified “By Input.” “By input” means the figure is the formulation weight that went into the batch — it is not an analytical measurement of dihydromyricetin content. There is no DHM assay or percentage anywhere in the document.

What follows from that, and what doesn’t. What follows is narrow and factual: the published documents do not state how much dihydromyricetin is in a serving. That’s it. It doesn’t mean the product contains little DHM, and it isn’t an accusation — plenty of manufacturers label this way, and the “50:1” on the front of that bottle refers to the milk thistle, not the DHM. It simply means a buyer cannot determine the active dose from what’s published.

One practical consequence worth flagging: several third-party review sites list this product as containing “300 mg of DHM,” and some describe it as “98% pure DHM.” Neither figure appears in the brand’s own label or COA. If you’re comparing products, that’s the kind of number that travels far and shouldn’t.

How to check any label in 30 seconds

Find the compound you actually care about in the Supplement Facts panel.
Is it named with its own milligram figure? If yes, that’s your dose. Done.
If it’s named as an extract, look for a percentage — “standardized to X%.” If it’s there, multiply. If it isn’t, the active dose is not on the label, no matter how clean the number looks.
Ignore the extraction ratio (“10:1”, “50:1”) for this purpose. It describes processing, not active content.
Check whether a proprietary blend is hiding the split — a single blend total with no per-ingredient amounts means no individual dose is disclosed.
If the brand publishes a COA, check how the figure was verified. “By input” is a formulation weight; an assay is a measurement.

US Supplement Facts labeling rules require ingredient amounts per serving, but they don’t force a brand to break out the active constituent inside a botanical extract. So a label can be fully compliant and still leave you unable to work out the dose. That’s a gap in the convention, not necessarily a brand behaving badly — but it’s yours to navigate.

Where this shows up across the category

We track this systematically. Our DHM Dose Transparency Index grades every DHM/hangover supplement we can source on exactly this question — does the label let you determine the dose? — with every row linked to the brand’s own label so you can check it yourself. The “extract weight only” tier exists on that index specifically because of the pattern described here.

To be direct about our own position, since we sell one of these: Hovenia is single-ingredient dihydromyricetin, and the 1,000 mg on our label is the DHM itself, not an extract weight. That’s a factual statement about labeling, not a claim that our product works better than anyone else’s — the human evidence in this whole category is thin, and a bigger or clearer number on a label is not a promise of a result. Apply the 30-second check above to us too.

For the dosing context — what amounts the research has actually used — see DHM dosage: how much to take, and for the compound itself, our complete guide to DHM.

Frequently Asked Questions

Does “300 mg extract” mean 300 mg of the active ingredient? No. It means 300 mg of concentrated plant extract, which contains some amount of the active compound. Unless the label also gives a standardization percentage, the active amount isn’t stated and can’t be calculated from the label.

What does “standardized to 98%” mean? It means 98% of that extract’s weight is the named compound — so 1,200 mg of an extract standardized to 98% DHM works out to roughly 1,176 mg of DHM. Standardization is what makes an extract weight convertible into an active dose.

Is a 50:1 extract stronger than a 10:1 extract? Not necessarily in the way people assume. The ratio describes how much raw plant was concentrated into the extract, not how much active compound the finished extract contains. Two extracts with the same ratio can have very different active content. Only a standardization percentage tells you that.

Is labeling by extract weight allowed? Yes. US Supplement Facts rules require ingredient amounts per serving but don’t require brands to break out the active constituent within a botanical extract. A label can be entirely compliant and still not disclose the active dose — which is why it’s worth checking rather than assuming.

How do I compare two supplements fairly? Convert both to the same active-dose basis before comparing, and if one of them can’t be converted because no percentage is given, treat its dose as unknown rather than guessing. Our Dose Transparency Index does this comparison across the category with sources for each row.

Reviewed for accuracy against each cited product’s published label and Certificate of Analysis. Hovenia is a liver-health supplement company; our product supports healthy liver function and is not intended to diagnose, treat, cure, or prevent any disease. This statement has not been evaluated by the FDA or Health Canada.

The brand behind this: Hovenia is single-ingredient pure DHM — 1,000 mg of DHM per serving, stated as the compound, not an extract weight. It’s pre-launch and US-first. Join the waitlist → · See the formula →