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Levocarnitine tartrate

CAS 51596-57-7 · 40/100 · High conf.

Also registered as 3 other CAS numbers

295343-07-6 · 1875117-27-3 · 36687-82-8

Levocarnitine tartrate chemical structure

Concern score

40/100Moderate concern based on regulatory listings.
High confidence

Levocarnitine tartrate in plain language

What it is

On cosmetic ingredient lists it appears as “Carnitine tartrate”.

Also known as Carnitine tartrate · Carnitine bitartrate · Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, ion(2-), bis · L-Carnitine L-tartrate · L-Carnitine tartrate · Carnipure tartrate

Show all 14 names

L-carnitine-l-tartrate · Levocarnitine hemitartrate · Levocarnitine-l-tartrate · C18H36N2O12 · C2625 · CS-0158160 · F987471 · HY-W105518

What it does

Carnitine Tartrate is the salt of Carnitine and Tartaric Acid.

Is it a concern?
Moderate concern: no hazard classifications on record. It is listed for cosmetic use in the EU.

Why it's flagged

EPA DSSTox provides the canonical identifier, structure, and synonym profile for this chemical.

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. Levocarnitine tartrate appears in these published regulatory listings.

  • EUEFSAEFSA opinion2 entries
    • Scientific Opinion on the safety and efficacy of L-carnitine and L-carnitine L-tartrate as feed additives for all animal species based on a dossier submitted by Lonza Benelux BV (EFSA FEEDAP)Source →
    • Opinion of the Scientific Panel on food additives, flavourings, processing aids and materials in contact with food (AFC) related to L-Carnitine-L-tartrate for use in foods for particular nutritional purposes (EFSA AFC)Source →
  • EUCosIngActiveCarnitine Tartrate is the salt of Carnitine and Tartaric Acid.
    • Carnitine Tartrate is the salt of Carnitine and Tartaric Acid.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

    • Scientific Opinion on the safety and efficacy of L-carnitine and L-carnitine L-tartrate as feed additives for all animal species based on a dossier submitted by Lonza Benelux BV (EFSA FEEDAP)

      2012 · EU EFSA listing · Read the source →

    • Opinion of the Scientific Panel on food additives, flavourings, processing aids and materials in contact with food (AFC) related to L-Carnitine-L-tartrate for use in foods for particular nutritional purposes (EFSA AFC)

      2003 · EU EFSA listing · Read the source →

Evidence & sources

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

6 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EFSA OpenFoodTox

    regulatory · updated 2026-10-04

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    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 →
Reference links (2)
Openfda substance

cfsanappsexternal.fda.gov

Read →

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.

Catalog

Found in these products

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

See all 583 →Find products without it →

Co-occurrence

Often appears with

Ingredients that frequently appear alongside Levocarnitine tartrate in the catalog.