Children's supplements: check packaging, warnings and age-group labelling before the first batch
Check iron per package, closure test evidence, the iron warning and the age-group label column before the first batch is packed.
In Short
- 250 mg iron per pack: special packaging.
- Child test: 85% before, 80% after demo.
- Senior adult test: at least 90%.
Brand owners and contract manufacturers making supplements for children, or products a child could reach, face packaging and labelling rules beyond formula and dose. Opened (current eCFR, up to date 1 October 2026): 16 CFR 1700.14(a)(13), 1700.15, 1700.5 and the scope of 1700.20; 21 CFR 101.17(e); and the percent Daily Value and special labelling paragraphs of 21 CFR 101.36. Not opened: the Poison Prevention Packaging Act itself, CPSC guidance, the 1700.20 test protocol in full, any choking or sugar rule, upper intake references and state laws. It is orientation, not legal advice. Sources checked 5 Oct 2026.
Iron and Child-Resistant Packaging
16 CFR 1700.14(a)(13) covers dietary supplements, as defined in 1700.1(a)(3), that contain the equivalent of 250 mg or more of elemental iron from any source in a single package, at 0.025 percent or more weight-to-volume for liquids or 0.05 percent or more weight-to-weight for nonliquids. These must be packaged under 1700.15(a), (b) and (c).
Worked Example: Iron per Package, Three Invented SKUs
| SKU | Iron per pack | 250 mg test |
|---|---|---|
| KD-IR-30 chewable, 30 x 10 mg | 300 mg | Over: check concentration |
| KD-MV-60 gummy, 60 x 3 mg | 180 mg | Under 250 mg |
| AD-IR-90 adult tablet, 90 x 27 mg | 2,430 mg | Over: adult products too |
- KD-IR-30 chewable, 30 x 10 mg
- Iron per pack
- 300 mg
- 250 mg test
- Over: check concentration
- KD-MV-60 gummy, 60 x 3 mg
- Iron per pack
- 180 mg
- 250 mg test
- Under 250 mg
- AD-IR-90 adult tablet, 90 x 27 mg
- Iron per pack
- 2,430 mg
- 250 mg test
- Over: adult products too
More on iron and Child-Resistant Packaging
Two exceptions apply: iron present solely as a colorant, and powders with no more than 0.12 percent weight-to-weight elemental iron. The rule follows iron content per package, not the intended audience, so adult products can be in scope too.
What special packaging must achieve
Under 1700.15(b), packaging tested by the 1700.20 method must show child-resistant effectiveness of not less than 85 percent without a demonstration and not less than 80 percent after one; unit packaging needs not less than 80 percent. Senior adult use effectiveness must be not less than 90 percent, except for products covered by the younger-adult test in (b)(2)(ii).
Special packaging evidence (16 CFR 1700.15)
More on what special packaging must achieve
Under 1700.15(a) the packaging must keep working in contact with the product and over the customary number of openings. Keep supplier test reports tied to the exact closure and container.
The Single Noncomplying Size
16 CFR 1700.5 implements section 4(a) of the Act: a manufacturer or packer may supply a substance that needs special packaging in noncomplying packaging of a single size, provided complying packaging is also supplied and the noncomplying packages are conspicuously labelled to show they should not be used in households where young children are present. This guide does not restate the exact label wording in 1700.5.
More on the Single Noncomplying Size
Record which SKU, if any, is the noncomplying size and who approved that decision and its label.
Iron Warning and Age-Group Labels
21 CFR 101.17(e)(1) requires a warning on dietary supplements in solid oral dosage form, such as tablets or capsules, that contain iron or iron salts for use as an iron source; (e)(2) places it on the information panel of the immediate container label, with rules for unit-dose packaging. Under 101.36, percent Daily Values are based on adults and children 4 or more years of age unless the product is represented for infants through 12 months, children 1 through 3, or pregnant or lactating women; the column heading then names the group, with separate columns for more than one group.
Which %DV column? (simplified, 21 CFR 101.36)
- Adults and children 4 or more years of age.
Formulation and Format Choices
Gummies, chewables and age-band doses involve commercial and safety decisions that this guide sets no limits for, because no choking rule or upper intake reference was opened. Record the intended age group, the reference values your team used and its format risk assessment, with reviewer and date.
More on formulation and Format Choices
A change to iron content, units per pack, closure or container sends the product back through the 1700.14 and 101.17 checks. 101.36(i)(1) also points to the special labelling provisions in 101.9(j)(5)(i) for products for children under 4.
Questions
Does the iron child-resistant rule apply only to children's products?
No. 16 CFR 1700.14(a)(13) applies by iron content per package, whatever the audience, with exceptions for iron used only as a colorant and low-iron powders.
How do I check the 250 mg threshold?
Add up the elemental iron in one retail package, units per package times elemental iron per unit, then check the concentration limits and exceptions too.
Which products need the iron warning in 21 CFR 101.17(e)?
Dietary supplements in solid oral dosage form, such as tablets or capsules, that contain iron or iron salts for use as an iron source.
Does V5 test closures or approve labels?
No. V5 keeps packaging specifications, supplier test reports, formulas and label versions linked. Your team approves packaging and labels.
Practical orientation, not legal advice. Rules differ by jurisdiction; your quality and compliance team decides what applies.
Keep reading
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21 CFR 111 Readiness: Identity, Master and Batch Records
Africa Supplement Regulation: SAHPRA, NAFDAC & Kenya PPB
Supplement Allergen Control: Validated Cleaning and Labelling
ASEAN Supplement Rules: BPOM, Thai FDA, Vietnam and PH FDA
CBD in Dietary Supplements: The Federal Drug Exclusion and Hemp Definition