Label arithmetic
Millilitres are not milligrams
Millilitres are not milligrams. A 2 ml serving of a herbal tincture sounds generous, and it tells you nothing at all about how much active material you are taking. The figure that matters is the blend total in milligrams per serving — and on many liquid supplements it is two or three digits, sitting in small type under a much larger number measured in fluid ounces.
The number on the front and the number that matters
Pick up any herbal tincture and read the front. It will say something like 2 FL OZ / 60 ML, in large confident type. Now turn it over and find the Supplement Facts panel, where the blend total is printed in a font roughly a quarter of the size.
The first number describes the bottle. The second describes the product. They are not related, and the first one is bigger for reasons that have nothing to do with how much herb you are getting.
What is actually in a dropper bottle
Working from the most abundant ingredient down, a typical herbal glycerite contains:
- Water — usually reverse-osmosis water, and usually the largest single component by volume.
- A solvent and sweetener — vegetable glycerin in an alcohol-free product, ethanol in a traditional tincture. This is what holds the extract in solution.
- Preservatives — sodium benzoate, potassium sorbate. A water-based liquid needs them; a capsule does not.
- An acidity regulator — malic or citric acid, which also helps the preservatives work.
- Flavour and sweetener — natural flavour, sucralose or stevia, because herbal extracts are bitter.
- The extracts — whatever is left, and it is usually measured in milligrams.
The product this site sells lists its other ingredients as RO Water, Vegetable Glycerin, Natural Flavor, Sodium Benzoate, Potassium Sorbate, Malic Acid, Sucralose. Read that list back: the first five items are the liquid, and the actives are the 121 mg line on the panel above it.
The capacity table
This is the useful part. Compare what each ingredient is studied at against a small blend total.
| Ingredient | Studied at | Fits at ~20 mg? | Why |
|---|---|---|---|
| Vitamin D, B12 | Micrograms | Easily | Micrograms are trivial to deliver in any format |
| Standardised extract, single active | 100-300 mg | Sometimes | Only if it is the whole blend or close to it |
| Horse chestnut extract | 300-600 mg | No | Two to five times the entire blend |
| Butcher's broom extract | 150-300 mg | No | Above the entire blend |
| Hawthorn extract | 160-1800 mg | No | Up to fifteen times the entire blend |
| Grape seed extract | 100-300 mg | No | And it is usually listed last, so it is the smallest share |
| Gotu kola extract | 60-180 mg | Borderline | Only if it dominates the blend, which is possible but unpublished |
The rule this produces
Find the blend total in milligrams. Divide by the number of ingredients. Look up one ingredient's trial dose. If the trial dose is larger than the whole blend, no arrangement of the ingredients rescues it. That is a ninety-second check and it works on every liquid supplement on every shelf.
We sell a 121 mg blend and we publish this anyway
Four of the six ingredients in the product this site sells are studied at doses larger than its entire blend. That is on the home page, the ingredients page and this post, because a reader who works it out afterwards has been sold something.
Listing return terms · Questions first? The contact page lists both desks
Where extracts genuinely change the answer
Having made the case against small blend totals, here is the strongest counter-argument, and it is a real one that deserves stating properly.
A standardised extract concentrates the active fraction of a plant. A 10:1 extract means ten parts of raw material produced one part of extract, so 30 mg of extract corresponds to 300 mg of the original herb. Applied honestly, this is how a small blend can carry a meaningful dose, and it is why “the trials used 600 milligrams” is not always the knockout argument it appears to be.
It matters even more for horse chestnut than for most, because the relevant figure there is not the extract weight at all — it is the aescin content. Trials specify 50 to 150 mg of aescin a day. A product that has standardised its horse chestnut will tell you the aescin percentage, because it is the single most valuable thing it can say about that ingredient.
The condition attached
It only works if the ratio is printed. “Horse chestnut extract” with no ratio and no aescin figure tells you nothing. A label that has gone to the trouble of standardising almost always says so, because it is a selling point. A label that does not print ratios has usually not paid for them. Of the six botanicals in the product this site sells, the number with a published extract ratio is zero.
Why liquids feel more generous than they are
There is a perceptual reason this format flatters itself, and it is worth naming because knowing it makes you harder to persuade.
Volume reads as quantity
A 60 ml bottle looks substantial on a shelf next to a 30-count blister pack. The blister pack might hold five times the active material.
A dropper feels medicinal
Amber glass, a pipette, drops counted into a spoon. The format borrows the visual language of pharmacy, and none of that language is regulated.
Two units get confused
Millilitres on the front, milligrams on the back. Most people read the first and remember it as a quantity of product.
The panel type is small
A blend total of 121 mg is printed at about a quarter the size of the volume on the front. That is a design choice, and it is not an accident.
None of this makes liquid supplements dishonest. It makes them easy to misread, which is a different problem with the same consequence.
How to check in ten seconds
Ignore the fluid ounces
It is the size of the bottle, not the size of the dose.
Find the blend total in milligrams
On the Supplement Facts panel, on the line with the blend name.
Divide by the ingredient count
That is your average share, and your ceiling for whatever is listed last.
Look up one gram-dose ingredient
If it is in there without an amount, you now know roughly what it cannot be.
Check the serving size and the servings per container
Multiply. It should equal the bottle volume, and if it does not, something is wrong.
Decide what you are paying for
Format convenience is worth money. Just make the trade knowingly.
When the format is the right choice
Three situations where a tincture is the sensible purchase rather than the naive one.
When you cannot swallow capsules
A real constraint for a lot of people, and one the industry mostly ignores. A liquid solves it completely.
When a dose needs adjusting
A clinician can halve a liquid dose. A capsule is a fixed unit, and splitting one is messy and imprecise.
When the ingredient is genuinely low-dose
Vitamin D, B12, iodine. For these the volume is irrelevant and the format costs you nothing at all.
And the general rule: the best supplement is the one you keep taking, at a dose that means something. The format helps with the first half of that sentence. Only the panel can tell you about the second.
The servings line is the one to check second
After the blend total, the most informative line on a liquid panel is servings per container, and it is the one that catches out the most buyers.
Multiply the serving size by the servings per container. It should equal the volume on the front. If a 60 ml bottle claims sixty servings, the serving is 1 ml, not 2 — which halves the daily dose and doubles how long the bottle lasts. Two products at the same price and volume can differ by a factor of two on that line alone, and the front label will look identical.
On the product this site sells the arithmetic is clean: 2 ml times thirty servings is 60 ml, and the directions say 1 ml twice daily. That is one of the few things this label does straightforwardly, and it is worth saying so on a page that spends most of its length being critical.
Read the panel, then the front
In that order, on every bottle you ever pick up.
Listing return terms · Questions first? The contact page lists both desks