Guide
How to read a supplement label before you buy it
A method rather than an opinion, with the Renew31 label as the worked example. The Supplement Facts panel is the regulated document and the front of the package is the advertisement, so read them in that order: the sales material here names five ingredients and the panel declares ten. Then the serving size, because every figure underneath it is per serving. Then the percentage column and the daggers beside it. Then, on this panel above all, the lines that are not printed at all, because leaving one off is usually itself a claim.
By the Getrenew31 Editorial Desk · Last updated October 11, 2026
The method in four lines
Read time under a minute- Read the panel before the advert. The sales material names five ingredients; the panel declares ten.
- The serving size is the unit. Every figure is per serving, and here that is 1 Gummy.
- A dagger means no reference figure exists, not that the amount is small.
- An absent line is usually a claim. No Dietary Fiber line is lawful only under a gram, so the absence asserts under a gram.
Read the panel before you read the advert
The front of a package is an advertisement. The Supplement Facts panel is a regulated document. When they disagree the panel is the one that has to be right, and the same six rows sit on every panel you will ever pick up.
| The row | What it is for | What Renew31 prints |
|---|---|---|
| Serving size | The unit every other figure is per. | 1 Gummy. Not one bottle. |
| Servings per container | How many of those units the bottle holds. | 30. With 30 gummies and one a day, a bottle is exactly 30 days. |
| Amount per serving | A weight beside a name. | Filled on the nutrition lines. Inside the blend it is filled for none of the nine. |
| % Daily Value | The amount against a fixed reference figure. | Printed on two lines, with a dagger on the two that have no reference figure. |
| The blend line | One weight covering a named group. | Proprietary Blend, 430 mg, nine botanicals beneath it. |
| Other ingredients | What carries the product rather than is the product. | 10 items, printed in full. On a gummy they explain the sugar. |
Here is that difference on this product. The sales material supplied with this stock names five ingredients; the panel declares ten. The five it leaves out are fennel seed, fenugreek, lemon balm leaf, slippery elm bark and dandelion leaf.
The rule that falls out of it
Where a pack and a panel disagree, the panel wins and the disagreement gets written down. The label wins. All ten are published here, and the 5 the sales page never mentions are named on every page that lists ingredients.
The serving size, and why it comes first
It is the first line of the panel and the one most readers skip. Every weight and every percentage underneath it is per serving, so the serving size is the unit that makes two labels comparable at all.
On this label it resolves cleanly, which is not always the case. The serving is 1 Gummy, the panel gives 30 servings, the bottle holds 30 gummies, and the published directions read: 1 gummy daily with a full glass of water, about 30 minutes before a morning or afternoon meal, or as a clinician directs. One into thirty is thirty, so a bottle is exactly 30 days and a price can honestly be quoted per day.
That matters most when a unit count and a serving count disagree. Sixty units at two a day is also thirty days, and at three a day it is twenty, however large the number on the front looks.
The percentage column, and the footnote beside it
A percentage of the Daily Value is the amount in a serving divided by a fixed reference figure, times a hundred. It is not a target, not a maximum and not personal to you.
A labelling reference figure, not a dose for you
One figure per nutrient, set so that a single percentage can be printed on every package in the country. The Daily Reference Value for added sugars is 50 g, and for dietary fibre it is 28 g.
The narrowest statement on this panel
The added sugars line is printed at 0%. 0% of a 50 g Daily Value means the serving holds under about 0.25g, because 0.25g of 50 g rounds to the first half of a per cent. A zero in that column is a quantity, not an absence.
The footnote on the blend line
The panel prints † Daily Value Not Established against the CFU line and against the blend total. It means no reference figure exists, so no percentage can be calculated. It is not a statement that the amount is small, and on this panel it is used correctly.
This panel prints two percentages and two daggers: 1% against total carbohydrate, 0% against the added sugars line, and a dagger on the CFU line and on the 430 mg blend. A percentage says how an amount compares with a national reference figure. A dagger says the comparison cannot be made.
Renew31, from $49 a bottle. 30 gummies at 1 gummy a day, so a bottle is 30 days.
- 60-day money-back guarantee
- Free US shipping on 3 and 6 bottles
- 30 gummies a bottle, 1 gummy a day
What an absent line asserts
The most useful reading skill on a panel of this kind is noticing what is not printed. A line left off a Supplement Facts panel is not a silence. It is usually a claim, because the only lawful reason to leave it off is that a quantity fell below a threshold.
| The kind of absence | On this panel | What it asserts |
|---|---|---|
| A line that is not printed | Dietary Fiber | Omitting it is lawful only under a gram, so the absence asserts under a gram and nothing more. |
| A value that is not available | Calories 4 | Below 50 calories the available values are 0, 5, 10. The panel prints 4. |
| A unit the regulation does not ask for | Bacillus coagulans 500 Million CFU | A count of cells, where 21 CFR 101.36(b)(3)(ii)(A) asks that “These amounts shall be expressed using metric measures in appropriate units.” 21 CFR 101.36 The weight is not published. |
| A name that is on the bottle and not in the advert | five more | The sales material names five of the ten declared things. |
The first row is the one to learn the habit on. No Dietary Fiber line appears on this panel at all, and 21 CFR 101.9(c)(6)(i) requires the line “except that if a serving contains less than 1 gram, declaration of dietary fiber is not required” 21 CFR 101.9 So the missing line asserts that this serving holds under a gram of fibre, and asserts nothing else: not that there is none, and not how much there is.
The second row is the same skill applied to a value rather than a line. Calories must be “expressed to the nearest 5-calorie increment up to and including 50 calories” 21 CFR 101.9, which leaves 0, 5, 10 available below 50. the label page works both rows through with the calorie factors quoted in full.
The Other Ingredients line, and what it settles
The last line of a panel is the one most readers never reach, and it answers what no mark on the front can.
Printed on this label
Other Ingredients: Glucose Syrup, Water, Sucrose, Natural Flavors, Apple Pectin, Critic Acid, Trisodium Citrate, Black Carrot Extract (Color), Vegetable oil, Carnauba Wax. Then: No Allergens
10 items, and their order is the point. Glucose Syrup is first and Sucrose is third, which is what makes a gummy a gummy and why a chewable carries sugar where a swallowed capsule would not. Apple pectin is the setting agent, and black carrot extract is there as colour.
It is also where a careful reader checks the transcription. The panel reads Critic Acid where citric acid is meant, and inside the blend it writes Lemon Balm leaf Extract with a lower-case leaf. Both are reproduced as printed, because a transcription that tidies a label is no longer a transcription.
Then the line No Allergens. An affirmative no-allergens statement is the manufacturer’s own assertion. It is not a declaration format FDA prescribes.
The questions only an order desk can answer
Much of what a label marks as absent is unpublished rather than unknowable, and a desk that handles the product daily can settle several of these in a minute.
| The question | What is known here |
|---|---|
| How much of each blend ingredient is in a gummy? | Not published for all nine. Nothing inside the 430 mg blend carries a figure, and the blend guide sets out the only bounds there are. |
| What does Bacillus coagulans weigh? | Not published. It is quantified in CFU and in nothing else. |
| Is there a certificate of analysis document rather than a reference number? | None has reached this desk. What was supplied is the string R-6641-26-GE. A lot code and a certificate reference were supplied as strings. No document was. |
| Which certifying body issued each seal, and when was it audited? | Not published for any of the marks shown with this stock. A seal is artwork, not a certificate: no certifying body, certificate number or audit date was supplied for any of the marks shown with this stock. |
| Who made the gummies, and where? | Not published. No manufacturer, facility or registration number is named in any supplied material. |
Ask before you buy. The order desk is +1 (302) 200-3480; the website desk at [email protected] handles these pages, keeps Monday to Friday, 9:00am - 5:00pm ET, and cannot see an order.
A method you can take to any label
Three bottles is $69 each with free US shipping, and there are 60 days to change your mind on every pack.
See the packs, from $49 a bottle
- 60-day money-back guarantee
- Free US shipping on 3 and 6 bottles
- 30 gummies a bottle, 1 gummy a day
Questions
Renew31: common questions
What should I read first on a supplement label?
The Supplement Facts panel, before any front artwork. The panel is the regulated document and the front is the advertisement. Here the sales material names five ingredients and the panel declares ten.
What does the serving size actually change?
Everything else on the panel. Every weight and percentage is per serving, so two panels are only comparable once you know what one serving is.
What does a dagger next to a line mean?
That no Daily Value has been established for it, so no percentage can be printed. It is not a statement that the amount is small or large.
Can a line that is missing from a panel tell you anything?
Yes, and on this panel it is the sharpest tool there is. Omitting the Dietary Fiber line is lawful only if the serving holds under a gram, so the absence is itself a declaration: “except that if a serving contains less than 1 gram, declaration of dietary fiber is not required” 21 CFR 101.9
References
- Code of Federal Regulations, Title 21, Section 101.9. Nutrition labeling of food. https://www.govinfo.gov/content/pkg/CFR-2024-title21-vol2/xml/CFR-2024-title21-vol2-sec101-9.xml
- Code of Federal Regulations, Title 21, Section 101.36. Nutrition labeling of dietary supplements. https://www.govinfo.gov/content/pkg/CFR-2024-title21-vol2/xml/CFR-2024-title21-vol2-sec101-36.xml
Every source above was opened and read on October 11, 2026. None of them tested Renew31 itself. They describe the labelling regulations that govern this panel, which is a different thing from testing this finished formula.