
Natural vs Artificial Flavor Labeling: US FDA 21 CFR 101.22 vs EU Regulation 1334/2008

21 CFR 101.22 Natural vs Artificial Flavor Definition for E-Liquid Labels

EU Regulation 1334/2008: Natural Flavouring Substance Definition and Labeling
| Dimension | United States (21 CFR § 101.22) | European Union (Reg. (EC) No 1334/2008) |
| Definition of natural | “Natural flavor” is a defined ingredient category: flavoring constituents derived from enumerated natural sources by processes such as extraction, roasting, heating, or enzymolysis (§ 101.22(a)(3)). | “Natural flavouring substance” is a substance obtained by appropriate physical, enzymatic or microbiological processes from vegetable, animal or microbiological material (Art. 3(2)(c)); “natural flavouring preparation” is defined in Art. 3(2)(d). |
| Artificial category | Residual category: any substance imparting flavor not derived from the enumerated natural sources is artificial (§ 101.22(a)(1)). | No single “artificial” label term for the category; flavouring substances must be on the Union list and the “natural” qualifier is reserved by law. |
| Source naming | Ingredient statements may simply say “natural flavor”; the source need not be named unless a characterizing-flavor claim is made (§ 101.22(h)(1), (i)). | “Natural” used with a named source (e.g., strawberry) requires that the flavouring component be derived from that source (Annex III); provenance is a label claim. |
| B2B flavor labels | Three patterns: “natural strawberry flavor,” “natural and artificial strawberry flavor,” “artificial strawberry flavor” (§ 101.22(g)(3)). | Flavourings sold B2B carry defined names and conditions of use under Chapter IV; the “natural” term is restricted by Article 16 and Annex III. |
| Certification duty | Written certification that a no-artificial flavor contains none, retained 3 years (§ 101.22(i)(4)). | No US-style certification document, but the EU-CEG notification requires a complete ingredient list for every e-liquid product. |
| E-liquid layer | FDA Center for Tobacco Products regulates e-liquids as tobacco products; flavor ingredient safety still relies on food-grade GRAS assessment. | TPD Article 20 notification with full ingredient and emissions data; 10 ml cap, 20 mg/ml nicotine cap; national flavor bans in 8 member states. |

E-Liquid Flavor Labeling Compliance: Natural vs Artificial Documentation Checklist
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