Vanillin (Synthetic)

About

What it is and where it shows up.

Vanillin (4-hydroxy-3-methoxybenzaldehyde) is an organic phenolic aldehyde and the primary aromatic component responsible for the characteristic flavour of vanilla; the synthetic form is commercially produced from guaiacol or lignin and is used worldwide in foods, beverages, confectionery, and baked goods as an artificial vanilla flavouring. It is among the most widely consumed flavouring substances globally and is a cost-effective alternative to natural vanilla extract.

Safety summary

The regulatory and scientific consensus.

Synthetic vanillin has a well-established safety record: the EFSA AFC Panel (2008) found the NOAEL of 1,000 mg/kg bw/day (in a 2-year rat study) to be more than 100-fold above estimated dietary intake, and the JECFA ADI is 0–10 mg/kg bw/day. Genotoxicity studies including the Ames test and chromosomal aberration assays in mammalian cells were negative, and the AFC Panel concluded there is no concern for genotoxicity. Sensitisation studies in humans have documented rare cases of contact allergy, primarily of relevance in cosmetic or occupational fragrance exposure rather than typical dietary use.

Regulatory landscape

What food-safety regulators have decided.

Jurisdiction	Status	Note
EFSA (European Food Safety Authority) (European Union)	Approved	Authorised as flavouring substance FL No. 05.018 under Annex I of Regulation (EU) No 1334/2008. EFSA AFC Panel (2008) confirmed NOAEL of 1,000 mg/kg bw/day and no genotoxicity concern under FGE.20. JECFA ADI of 0–10 mg/kg bw/day adopted as reference. Not assigned a standalone E-number; regulated as a flavouring, not a food additive, under Regulation (EC) No 1333/2008.source
FSSAI (Food Safety and Standards Authority of India) (India)	Approved	Permitted flavouring substance under Food Safety and Standards (Food Products Standards and Food Additives) Regulations, 2011. Analytical detection methods for vanillin are formally documented in the FSSAI Manual of Methods of Analysis of Foods. No separate ADI prescribed domestically; JECFA guidance referenced.source
FDA (Food and Drug Administration) (United States)	Approved	Listed as a GRAS synthetic flavouring substance under 21 CFR 172.515 and 21 CFR 182.60; permitted at GMP (Good Manufacturing Practice) levels with no fixed maximum. Ethyl vanillin (CAS 121-32-4), a related and more potent synthetic analogue, is similarly GRAS/FS under 21 CFR 182.60 and 182.90 for use in chocolate, cacao products, and vanilla-related products.source

Who should approach with care

Whose guidance would steer them away.

Other — Individuals with known fragrance or contact allergy sensitivity should exercise caution; human sensitisation studies (SCCS 2012, n=744 healthy subjects and n=747 patients with suspected contact allergy) have documented rare allergic reactions to vanillin, though this risk is primarily associated with cosmetic or occupational exposure rather than typical dietary food intake.

Infants — Infants and very young children may have proportionally higher per-kg-bw dietary exposure to vanillin compared to adults; while the JECFA ADI accounts for this margin, a general precautionary principle of minimising non-essential food additive intake in this age group applies.

Research citations

The sources behind this verdict.

1FDA. Substances Added to Food (formerly EAFUS) — Vanillin. hfpappexternal.fda.gov
2FSSAI. Compendium on Food Safety and Standards (Food Products Standards and Food Additives) Regulations 2011 — updated March 2022, 2022. fssai.gov.in
3EFSA. Scientific opinion on flavouring group evaluation 414 (FGE.414): 2-hydroxy-4-methoxybenzaldehyde, 2021. efsa.europa.eu
4PubMed. Vanillin: a review on the therapeutic prospects of a popular flavouring molecule, 2021. pmc.ncbi.nlm.nih.gov
5EFSA. Safety of orthosilicic acid-vanillin complex (OSA-VC) as a novel food ingredient to be used in food supplements as a source of silicon and bioavailability of silicon from the source, 2018. efsa.europa.eu

Independently researched5 citations