NOAEL Data Cosmetic Ingredient

Prolyl-4-hydroxyproline

CAS 18684-24-7

Prolyl-4-hydroxyproline (CAS 18684-24-7) is a chemical substance. Key regulatory status: cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat.

View cosmetic safety profile for DIPEPTIDE-6 →

SOURCE NOAEL studies
NOAEL studies
1
SOURCE Chemical inventory jurisdictions
Regulatory lists
0
SOURCE EU CLP Annex VI
GHS signal
Not classified

Chemical Identity

CAS, identifiers, formula, and alternate names for the matched substance record.

SOURCE DSSTox identifiers 5 fields
Name
Prolyl-4-hydroxyproline
CAS Number
18684-24-7
Molecular Formula
C10H16N2O4
InChI Key
ONPXCLZMBSJLSP-UHFFFAOYSA-N
Monoisotopic Mass
228.111007

Functional Uses

Industrial and product-use categories associated with this substance.

SOURCE EPA CPDat 1 records
Softener and conditioner

NOAEL Studies

Toxicology endpoints rendered from public NOAEL study rows.

SOURCE NOAEL studies Showing 1 of 1 studies
ValueUnitEndpointRouteSpeciesSource
W8TTC0Y1XYUNIIFDA UNII substance identifier--openFDA substances

Showing 1 of 1 studies

Cosmetic Safety Profile

Same-CAS cosmetic ingredient record for cross-vertical context.

SOURCE CosIng / Ingredients DB
EU Status
permitted
Max
-
Category
Skin Conditioning
View full cosmetic safety profile →

Frequently Asked Questions

What is the NOAEL for Prolyl-4-hydroxyproline?

Prolyl-4-hydroxyproline has 1 NOAEL study in the database. The lowest reported value is W8TTC0Y1XY UNII. Source: openFDA substances.

Is Prolyl-4-hydroxyproline used in cosmetics?

Yes, Prolyl-4-hydroxyproline is also indexed as a cosmetic ingredient under the name DIPEPTIDE-6. View the full cosmetic safety profile on the ingredient page for detailed safety data, SCCS opinions, and regulatory status.

Where does the safety data for Prolyl-4-hydroxyproline come from?

Safety data is sourced from EPA ToxValDB, EPA CPDat, EPA DSSTox, CosIng / Ingredients DB. All data traces to primary regulatory sources and is updated from official government databases.

Is Prolyl-4-hydroxyproline used outside industrial chemicals?

Prolyl-4-hydroxyproline also appears in cosmetics databases.