Home / Ingredients / 1,3-Propanediol
Route-Dependent · ISO 16128

Is 1,3-Propanediol Natural?

Learn about 1,3-Propanediol — its natural origin index (ISO 16128), feedstock sources, synthesis process, and renewability classification.

0.0–1.0
depends on source
Natural Origin Index
INCI Name1,3-Propanediol
IUPAC Namepropane-1,3-diol
FormulaC3H8O2
PubChem CID10442 ↗
FunctionHumectant · Skin Conditioning Agent
FeedstockThe primary commercial feedstocks for

Synthesis Routes

Why the score varies

This ingredient can be manufactured via multiple distinct synthesis pathways — some starting from petroleum feedstocks, others from renewable biological sources. ISO 16128-2 assigns the NOI based on the actual feedstock used, which means the score depends entirely on which route your specific supplier uses.

Without supplier documentation, this ingredient cannot be claimed as renewable. Certification requires verified feedstock provenance.

Chemical Structure

2D structure of 1,3-Propanediol

Learn about 1,3-Propanediol — its natural origin index (ISO 16128), feedstock sources, synthesis process, and renewability classification.

View full data on PubChem ↗

Quick Facts

  • INCI Name1,3-Propanediol
  • IUPAC Namepropane-1,3-diol
  • Molecular FormulaC3H8O2
  • PubChem CID10442 ↗
  • FunctionsHumectantSkin Conditioning AgentSolvent
  • Primary FeedstockThe primary commercial feedstocks for 1,3-Propanediol are either petrochemical-derived propylene oxide or renewable resources like corn sugar (glucose). The bio-fermentation route utilizes glucose derived from starch crops, while the petrochemical route starts with propylene, a byproduct of petroleum refining or natural gas processing.
  • NOI Score0.0 / 1.0
  • TierRoute-Dependent

Description

Learn about 1,3-Propanediol — its natural origin index (ISO 16128), feedstock sources, synthesis process, and renewability classification.

References

  1. 1ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products — Part 2. ISO, Geneva.
  2. 21,3-Propanediol. National Center for Biotechnology Information. PubChem CID 10442. pubchem.ncbi.nlm.nih.gov ↗