beauty
cleaning
food
industrial

DL-Proline

CAS 609-36-9

Also registered as 3 other CAS numbers

7005-20-1 · 25191-13-3 · 64298-80-2

Concern score

Not assessed — no hazard data yet.

DL-Proline in plain language

What it is: Also known as Proline dl-form · Proline, dl- · PYRROLIDINE-2-CARBOXYLIC acid · Proline · (+/-)-Proline · (+/-)-Pyrrolidine-2-carboxylic acid
Show all 17 names
(RS)-Proline · (±)-proline · 2-Pyrrolidine carboxylic acid · 2-Pyrrolidinylcarboxylic acid · D-Pyrrolidine-2-carboxylic acid · DL-Pro · DL-Prolin · DL-prolina · H-DL-Pro-OH · Hpro · UNII-DCS9E77JPQ
What it does: Used in consumer products as a conditioner.
Conditioner
Is it a concern?: We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. DL-Proline appears in these published regulatory listings.

Recorded in these product areas

Found in consumer products
Beauty
Cleaning
Industrial

GLOBALJECFAEvaluatedJECFA evaluation record.
- JECFA evaluation record.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 8 composition records across product categories including Laboratory supplies, Personal care. EPA CPDat classifies this chemical for functional uses including Softener and conditioner.
- EPA CPDat observed this chemical in 8 composition records across product categories including Laboratory supplies, Personal care. EPA CPDat classifies this chemical for functional uses including Softener and conditioner.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 record.
  Year not recorded · GLOBAL JECFA listing · Read the source →
EFSA
European Food Safety Authority
No EFSA opinion on file.

Evidence & sources

No graded research studies for DL-Proline 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

EPA Chemical and Products Database
exposure · updated June 2017
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 →

Suitability

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

Food use

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

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

Source records

Named organisations

Laboratory suppliesPersonal care

Typical roles

Conditioner

See products using DL-Proline →

Catalog

Found in these products

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

See all 115 →Find products without it →

Co-occurrence

Often appears with

Ingredients that frequently appear alongside DL-Proline in the catalog.

ProlineCo occurs