Guides
Guides
Two longer pieces about supplement labels, written to be useful in any shop and on any bottle, whether or not you ever buy this one. Dentanol appears in both, as the worked example of what happens when the ordinary parts of a label are not there.
How to read a supplement label teaches the five statements the FDA lists as required, shows what each one is for, and ends with a checklist short enough to use while holding a bottle. Why a photograph is not an ingredient name sets out the five things a real ingredient entry carries — common name, Latin binomial, plant part, extract ratio and amount — and what each one lets a reader do, using this product’s eight uncaptioned plant photographs as the example.
The two guides
How to read a supplement label
The five statements every dietary supplement label in the United States is required to carry, what each one is actually for, and a checklist you can run through in a shop in under a minute. Dentanol is the worked example, because it supplies two of the five and gives an unusually clear picture of what the other three were doing.
Why a photograph is not an ingredient name
A real ingredient entry carries five things: a common name, a Latin binomial, a plant part, an extract ratio or standardisation, and an amount. This guide explains what each of the five lets a reader do — and then holds it against a circle of eight uncaptioned plant photographs that supplies none of them.
Both are written to survive this product. If Dentanol disappeared tomorrow, the five statements would still be the five statements and a photograph would still not be a name. The examples would simply have to come from a different bottle.
What a guides section is for
A product page answers a question about one product. A guide answers a question you will have again next year, in a different shop, about a bottle nobody has written about. The second is worth more, and it is the part of this site a reader can take away.
There is also a specific reason these two exist rather than two others. Almost every criticism this site makes of Dentanol comes down to a missing label element, and a reader who has never had to look closely at a supplement label has no reason to know which elements there are, which are required, and which are conventional but optional. Without that, “there is no Supplement Facts panel” reads as a technicality. With it, the sentence lands properly.
The second guide exists because of one specific substitution that this product makes and that many others make in milder form: a picture standing in for a word. Photographs of plants are persuasive, memorable and entirely uninformative, and the gap between what they suggest and what they state is where a great deal of this trade lives.
Who a label is written for
A supplement label is doing several jobs at once for several different readers, and the parts that look dullest are usually the parts doing the most work.
- The buyer comparing two bottles. Needs the net quantity, the serving size and the amounts. All three are numbers, and all three live on the parts of the label nobody photographs for an advertisement.
- The buyer with an allergy. Needs the ingredient list and the Other Ingredients line, and needs them to be complete rather than representative. A graphic showing some of what is inside is no use to this reader at all.
- The pharmacist or clinician. Needs named substances, because an interaction is a relationship between two named things. A brand name tells them nothing they can act on.
- The regulator, and anybody making a complaint. Needs the name and place of business of the manufacturer, packer or distributor — the fifth statement, and the one that makes a product traceable to an organisation rather than to a checkout page.
Notice that not one of those four readers is served by the front panel. The front is written to be chosen from a shelf; the back is written to be read by somebody who has already decided to look. That is why the first guide’s practical advice is a single instruction: turn the bottle over before you read the front.
It is also why a missing panel is a different order of problem from a poorly written one. A clumsy panel still serves all four readers badly-but-somewhat. An absent panel serves none of them at all, and no amount of front-panel design compensates, because the front panel was never addressed to them.
How to grade a guide written by a seller
This site earns a commission on sales, so these guides are written by an interested party and you should read them the way you would read anything written by an interested party. Four tests are worth applying, to these and to anybody else’s.
- Does it teach a test the product would fail? A guide that only teaches tests its own product passes is a sales page with a table of contents. The first guide here teaches five statements and says plainly that Dentanol supplies two of them.
- Does it name its sources and quote them exactly? Four documents are cited across this site, all from the FDA, all opened and read, all linked. Nothing is quoted from a summary of a summary.
- Does it distinguish what is required from what is conventional? The two are constantly blurred in marketing copy. A missing required statement and a missing nice-to-have are not the same finding.
- Does it tell you what to do when the label is silent? A guide that only describes good labels is no use in the situation you are most likely to be in, which is holding a bottle that does not say enough.
Apply all four to the pages below. If either of them fails one, the correction address is on the contact page and a correction is published with a date on it.
The five statements, in one screen
This is the spine of the first guide and the reference most readers come back for. The FDA’s labeling guide lists them; the right-hand column is what this product supplies.
The FDA lists five statements a dietary supplement label must carry. This product supplies the first two and none of the last three. Two of five is an unusually clear case, and it makes this product a good teaching example even for a reader who will never buy it.
How to use the two together
They are written to be read in order, and they answer two halves of one question. The first asks whether the information is there. The second asks whether what is there is usable.
That second question catches the cases the first misses, and there are many of them. A bottle can carry a Supplement Facts panel, an ingredient list and a manufacturer’s address — three of the five, handsomely presented — and still leave a reader unable to check a single thing, because the entries name a genus with no species, give no plant part, print a percentage of an unnamed constituent, or pool every amount into one blend total.
So the sequence is: run the eight-point checklist from the first guide to find out what the label contains, and then run the five-line test from the second on each botanical entry to find out what those contents are worth. A bottle that passes both is properly specified. A bottle that passes the first and fails the second is common, and it is the situation most readers will actually meet.
Dentanol fails the first at step one, which makes it an unrepresentative example of an ordinary shelf and an excellent example for teaching. When the usual parts of a label are simply absent, what each of them was doing becomes visible in a way a good label never shows you.
The sources both guides use
Four documents, all from the U.S. Food and Drug Administration, all opened and read rather than summarised from elsewhere. Two of them do most of the work in the guides below: the general labeling chapter, which lists the five statements, and the nutrition labeling chapter, which sets out how a panel handles a proprietary blend.
- U.S. Food and Drug Administration (2026). Dietary Supplement Labeling Guide: Chapter I. General Dietary Supplement Labeling.
- U.S. Food and Drug Administration (2026). Dietary Supplement Labeling Guide: Chapter IV. Nutrition Labeling.
- U.S. Food and Drug Administration (2026). Questions and Answers on Dietary Supplements.
- U.S. Food and Drug Administration (2026). Dietary Supplement Labeling Guide: Chapter VI. Claims.
There is no ingredient research cited anywhere on this site, and the reason is worth repeating in the section that lists sources. Ingredient research starts by naming an ingredient. Nothing supplied with this product names one, so there is nothing to look up and nothing to cite. The ingredients page is what that produces.
What neither guide will do
Neither will tell you whether a supplement works. That is not modesty; it is the limit of what a label can support. A label tells you what is in a bottle and how much of it. Whether that amount does anything is a question for the published literature on the named substance, and on this product the question cannot even be posed.
Neither will identify a plant from a photograph, hedge an identification, or publish research about a species somebody guessed. The second guide is largely an argument for why that refusal matters, and it would be a strange guide that broke its own rule in the examples.
And neither will tell you that a well-labelled product is a good product. A complete label is the beginning of an assessment rather than the end of one. What it does is make an assessment possible, which is exactly what is unavailable here.
Ask for the panel before you pay
Thirty chewable tablets, a published price to the cent, and a 60-day money-back window. What is not published is the Supplement Facts panel, the ingredient list, the serving size and the allergen statement. The order desk can be asked for all four in writing, and that request costs nothing.
60-day window · Questions first? Call +1 (302) 200-3480