beauty
food
pharma

Thiamine

CAS 59-43-8 · 40/100 · High conf.

Also registered as 4 other CAS numbers

55463-15-5 · 57777-32-9 · 100660-17-1 · 115461-66-0

Concern score

40/100Moderate concern based on regulatory listings.

High confidence

Thiamine in plain language

What it is: Also known as Vitamin B1 · Tiamina · Thiamin · Thiamine monochloride · Vitamin B-1 · Aneurine
Show all 19 names
Apatate Drape · Beivon · Bethiamin · Oryzanin · Oryzenin · Thiacoat · Thiamine (INN) · Thiamine (Vit B1) · Thiamine chloride · UNII-X66NSO3N35 · Vitaneurin · Vitamin B1 (TN) · thiamine(1+) chloride
What it does: Used in consumer products as a flavouring.
Flavouring
Is it a concern?: Moderate concern: no hazard classifications on record.

Why it's flagged

EPA CPDat observed this chemical in 20 composition records across product categories including Personal care.

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. Thiamine appears in these published regulatory listings.

In marketed US drugs

Recorded in these product areas

Found in consumer products
Beauty

EUEFSAEFSA opinionDietary reference values for thiamin (EFSA NDA)
- Dietary reference values for thiamin (EFSA NDA)Source →
EUEFSAReport from international authorityOpinion of the Scientific Committee on Food on the Tolerable Upper Intake Level of Vitamin B1 (SCF)
- Opinion of the Scientific Committee on Food on the Tolerable Upper Intake Level of Vitamin B1 (SCF)Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 20 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient.
- EPA CPDat observed this chemical in 20 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient.Source →
USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 25 active drug products and 25 total products.
- FDA NDC lists this ingredient in 25 active drug products and 25 total products.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.

SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.
JECFA
Joint FAO/WHO Expert Committee on Food Additives
No JECFA evaluation on file.
EFSA
European Food Safety Authority
- Dietary reference values for thiamin (EFSA NDA)
  2016 · EU EFSA listing · Read the source →
- Opinion of the Scientific Committee on Food on the Tolerable Upper Intake Level of Vitamin B1 (SCF)
  2001 · EU EFSA listing · Read the source →

Evidence & sources

No graded research studies for Thiamine yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

7 data sources

Where this comes from

EFSA OpenFoodTox
regulatory · updated 2026-10-04
Open →
EPA Chemical and Products Database
exposure · updated November 2014
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA National Drug Code Directory
regulatory · updated 2027-12-31
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
openFDA Substance
registry · updated 2026-05-24
Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

How often FDA National Drug Code directory has listed Thiamine in a product composition. These are source records, not Greenveil catalog products.

Source records

Typical roles

Flavouring

See products using Thiamine →

Catalog

Found in these products

Their ingredient lists include Thiamine; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 1000+ →Find products without it →

Co-occurrence

Often appears with

Ingredients that frequently appear alongside Thiamine in the catalog.