Reading a label
Standardisation is the number that matters
A standardisation is the most valuable number on a supplement label, and almost nothing carries one. It names the compound the research measures and states what proportion of an extract is that compound — which is the only thing that lets a bottle be compared with a study. This post is about why it is rare, what it costs a manufacturer to print one, and what happens when a company prints five.
What a standardisation actually is
Botanical material is variable. Two harvests of the same plant, from the same field, in two different years, can differ several-fold in the compounds anybody cares about. Rain, soil, altitude, harvest timing and drying method all move it.
A standardised extract is one the manufacturer has tested and adjusted so that a stated compound is present at a stated proportion. “Standardised to 95% curcumin” means that in every batch, 95% of the extract by weight is curcumin. It is a specification, and hitting it means testing incoming material and rejecting what misses.
That is a different kind of statement from anything else on a label. An amount tells you how much powder is in the capsule. A standardisation tells you what is in the powder.
| What the label says | What it tells you | What it does not |
|---|---|---|
| 500 mg turmeric root powder | A weight of ground root | Nothing about curcumin content |
| 100 mg turmeric extract 10:1 | Concentrated from about 1 g of root | Which compounds survived, and in what proportion |
| 100 mg turmeric extract, std. 95% curcumin | 95 mg of curcumin | Very little — this is the useful one |
Why it is the number that matters
Because the research is done on compounds, not on plants.
When a trial reports that curcumin did or did not affect something, it used a defined quantity of curcumin. To know whether a bottle delivers anything comparable you need to know how much curcumin is in it, and that is a two-step sum: the weight of extract, multiplied by the standardised percentage.
Without the percentage, the sum has no solution. An unstandardised 100 mg turmeric extract might contain 95 mg of curcumin or 3 mg, and nothing printed on the label distinguishes those two products. They will sit beside each other on a shelf at similar prices, looking identical.
This is not a marginal difference. It is the single largest source of variation between supplement products that appear to be the same thing, and it is invisible to a buyer who does not know to look for it.
Four reasons labels leave it off
- It costs money. Standardisation means analytical testing on every batch of raw material, and rejecting the batches that miss the specification. That cost lands on every bottle.
- It creates liability. A number on a label is a number a regulator, a competitor or a journalist can test against. A weight of unspecified extract is much harder to be wrong about.
- It is not required. US labelling rules require the ingredient, the part of the plant and the quantity. They do not require a marker compound or a percentage.
- It is less persuasive than the alternative. “100:1 extract — equivalent to 10,000 mg” sounds enormous. “Standardised to 2% eurycomanone” sounds like homework. The information that would be most useful to a buyer is also the information least likely to impress one.
The fourth is the uncomfortable one, and it reliably predicts what ends up on packaging across the whole industry.
What an extract ratio gives you instead
Most labels that print anything print a ratio. 10:1 means ten parts of raw plant were reduced to one part of concentrate. It is a manufacturing statistic and it is genuinely better than nothing.
What it cannot tell you is what came through. Extraction is selective by design: water pulls out different compounds from ethanol, and both leave things behind. Two 10:1 extracts of the same bark from different manufacturers can differ several-fold in whatever you care about, and both labels are accurate.
The trap attached to ratios is the dry-powder equivalent: “100 mg of a 10:1 extract, equivalent to 1,000 mg of raw bark”. That is arithmetically true and reads as though the capsule contains a gram of something. It contains a hundred milligrams. The equivalence is by weight of starting material, and the starting material was mostly water and fibre.
Reading a standardised row in thirty seconds
Find the weight of extract
The milligrams. That is the material in the capsule.
Find the percentage
Multiply. 50 mg at 90% is 45 mg of the compound.
Find what the research used
One search at the NIH Office of Dietary Supplements or NCCIH. For weight-loss ingredients the NIH has a fact sheet covering twenty-three of them with doses.
Divide
This is the step that answers the question, and it takes five seconds.
Check the plant part and the species too
Root, leaf, bark, berry. Cassia or Ceylon. Research on one does not transfer to another, and labels get this wrong more often than you would expect.
What this means for the product we sell
Trimoryn prints five of these figures: 90% glucomannan on the konjac, 95% curcumin on the turmeric, 20% on the resveratrol, and extract ratios of 4:1 and 10:1 on the prickly pear and the cinnamon. That is more disclosure than any other product this desk has covered, and it is unusual enough to be worth stating first.
It is also the reason every criticism on the label page is as specific as it is. The 45 mg of glucomannan is not our estimate — it is the manufacturer’s own arithmetic finished. So is the 14 mg of curcumin, and the 2.4 mg of resveratrol.
Which produces the odd position this site is in. A proprietary blend of the same ingredients would be immune to all of it: nobody could say the glucomannan was a twenty-eighth of a studied dose, because nobody could say how much glucomannan there was. Precision invites scrutiny, and this manufacturer chose precision.
That is worth crediting on its own terms, and it does not change the sums.
A worked example, with real numbers
Take turmeric, because the research names a compound and the arithmetic is clean. Suppose two products on the same shelf.
- Product A: “Turmeric Root Extract 10:1 — 100 mg (equivalent to 1,000 mg of turmeric root)”.
- Product B: “Turmeric Extract — 100 mg, standardised to 95% curcumin”.
Product A sounds larger. It prints a ratio and does the multiplication, and the number a reader takes away is 1,000 mg. What is in the capsule is 100 mg of extract, and nothing on the label says how much curcumin survived the extraction.
Product B tells you there is 95 mg of curcumin in a serving. That number can be set against whatever the trials used, by anybody, with a calculator. It is the only one of the two labels that permits a comparison at all.
Product A may well be an excellent extract. The point is that its label makes the question unanswerable — and that the more impressive-looking number on it carries the least information.
Why the same logic applies to fibre, and more strictly
With a botanical extract, a low amount of the active compound usually means a smaller effect or none. With a bulk-acting ingredient it is starker, because the mechanism has a threshold.
Konjac glucomannan works by absorbing water and forming a viscous gel large enough to change how full a stomach feels. A gram or two can do that. Forty-five milligrams cannot form a gel of any relevant size, so there is not a smaller effect — there is no mechanism operating at all.
Which is why the standardisation matters even more on a fibre row than on a botanical one. “50 mg of konjac extract” is ambiguous. “50 mg standardised to 90% glucomannan” tells you the answer is 45 mg, and 45 mg answers the question by itself.
Read the panel first, then decide
Thirty capsules, one a day, eleven rows itemised and five of them standardised — the best-disclosed label this desk has read. It is also a label whose two best-studied weight ingredients sit at a fraction of the amounts the research used. The live price and the 60-day return terms are both on the seller’s checkout screen.
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