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Ornithine hcl

CAS 20724-48-5 · 40/100 · High conf.

Also registered as 2 other CAS numbers

68274-41-9 · 3184-13-2

Ornithine hcl chemical structure

Concern score

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

Ornithine hcl in plain language

What it is

Also known as L-ornithine monochlorohydrate/ornithine · Ornithine hydrochloride · L-Ornithine monohydrochloride · (2S)-2,5-diaminopentanoic acid;hydrochloride · Monohydrochloride l-ornithine · L-Ornithine--hydrogen chloride (1/1)

Show all 20 names

Ornithine, monohydrochloride, l- · 2,5-Diaminopentanoic acid hydrochloride · L-(+)-2,5-Diaminopentanoic acid · L-(+)-ornithine monohydrochloride · L-2,5-Diaminopentanoic acid, hydrochloride · L-Ornithine hydrochloride · L-Ornithine hydrochloride (1:1) · L-Ornithine hydrochloride (VAN) · Ornithine monohydrochloride, l- · Ornithine L HCl · Ornithine L monochlorohydrate · Ornithine hydrochloride (VAN) · Ornithine monohydrochloride · L-ORNITHINE (as the MONOCHLOROHYDRATE)

What it does

Used in cosmetics as a skin-conditioning agent.

  • Skin conditioning
  • Flavouring agent
  • Flavouring
  • Conditioner
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 CPDat observed this chemical in 9 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. Ornithine hcl appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • GLOBALJECFANo safety concern at current levels of intake when used as a flavouring agentJECFA evaluation lists ADI No safety concern at current levels of intake when used as a flavouring agent. Functional class: flavouring agent.
    • JECFA evaluation lists ADI No safety concern at current levels of intake when used as a flavouring agent. Functional class: flavouring agent.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 9 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Softener and conditioner, Flavouring and nutrient.
    • EPA CPDat observed this chemical in 9 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Softener and conditioner, Flavouring and nutrient.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

    • JECFA evaluation lists ADI No safety concern at current levels of intake when used as a flavouring agent. Functional class: flavouring agent.

      Year not recorded · GLOBAL JECFA listing · Read the source →

Evidence & sources

No graded research studies for Ornithine hcl 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

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EPA Chemical and Products Database

    exposure · updated November 2014

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • WHO JECFA Database

    regulatory · updated 2026-10-04

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →
Reference links (1)

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 EPA CPDat has listed Ornithine hcl in a product composition. These are source records, not Greenveil catalog products.

Source records

9

Named organisations

5

Personal care

Typical roles

Skin conditioningFlavouring agentFlavouringConditioner
See products using Ornithine hcl →

Catalog

Found in these products

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

See all 7 →Find products without it →