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Linolenic acid

CAS 463-40-1

Also registered as 1 other CAS number

29857-63-4

Linolenic acid chemical structure

Concern score

Not assessed — no hazard data yet.

Linolenic acid in plain language

What it is

Also known as (9Z,12Z,15Z)-OCTADECATRIENOIC acid · (9Z,12Z,15Z)-Octadeca-9,12,15-trienoic acid · Ala · Alpha linolenic acid · Alpha-linolenic acid (C18:3 N3) · C18:3 (N-3)

Show all 34 names

CIS-9,CIS-12,CIS-15-OCTADECATRIENOIC acid · Linolenate · (9,12,15)-linolenic acid · (9Z,12Z,15Z)-9,12,15-Octadecatrienoic acid · (Z,Z,Z)-9,12,15-Octadecatrienoic acid · (Z,Z,Z)-Octadeca-9,12,15-trienoic acid · (all-Z)-9,12,15-Octadecatrienoic acid · 18:3(N-3) · 9,12,15-Octadecatrienoic acid (9Z, 12Z, 15Z) · 9,12,15-Octadecatrienoic acid, (Z,Z,Z)- · 9,12,15-all-cis-Octadecatrienoic acid · 9-cis,12-cis,15-cis-Octadecatrienoic acid · Hystrene 9014 · Kortacid 1499 · crude Linolenic acid · Prifrac 2942 · Univol u 316S · all-cis-9,12,15-Octadecatrienoic acid · alpha-Linolenic acid · cis,cis,cis-9,12,15-Octadecatrienoic acid · cis-9,12,15-octadecatrienoic acid · cis-Delta(9,12,15)-octadecatrienoic acid · cis-delta9,12,15-Octadecatrienoic acid · .alpha.-linolenic acid (C18:3) (constituent of krill oil) · .alpha.-linolenic acid (constituent of flax seed oil) · Linolenic acid (constituent of evening primrose oil) · Linolenic acid (constituent of saw palmetto) · Vitamin f component alpha linolenic acid

What it does

Used in cosmetics as an emollient, a skin-conditioning agent and a cleansing agent.

  • Emollient
  • Skin conditioning
  • Cleansing
  • Hair conditioning
  • Antistatic
  • Perfuming
Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Linolenic acid appears in these published regulatory listings.

  • In marketed US drugs

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Cleaning
  • Industrial
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 179 composition records across product categories including Laboratory supplies, Personal care. EPA CPDat classifies this chemical for functional uses including Surfactant (surface active agent), Softener and conditioner, Anti-static agent.
    • EPA CPDat observed this chemical in 179 composition records across product categories including Laboratory supplies, Personal care. EPA CPDat classifies this chemical for functional uses including Surfactant (surface active agent), Softener and conditioner, Anti-static agent.Source →
  • USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 2 active drug products and 5 total products.
    • FDA NDC lists this ingredient in 2 active drug products and 5 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

No expert opinion on file for Linolenic acid. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • 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.

Evidence & sources

No graded research studies for Linolenic acid 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 September 2019

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA National Drug Code Directory

    regulatory · updated 2028-03-09

    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)

Allergen profile

Canonical allergen markers detected on this ingredient. Each row is derived from the ingredient’s name or synonyms matching a known allergen class — useful when scanning a label for a specific allergy context.

  • FishContains · Oral (ingested)

    Source: chemindex_name_match

Suitability

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

Fragrance avoidance

Not a strong fit for fragrance avoidance because it carries Fragrance.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Where it has been recorded

How often EPA CPDat has listed Linolenic acid in a product composition. These are source records, not Greenveil catalog products.

Source records

179

Named organisations

6

Laboratory suppliesPersonal care

Typical roles

EmollientSkin conditioningCleansingHair conditioningAntistaticPerfuming
See products using Linolenic acid →

Catalog

Found in these products

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

See all 36 →Find products without it →