Database/Antioxidant/Potassium Lauroyl Glycinate
Route-dependent · ISO 16128

Is Potassium Lauroyl Glycinate natural?

It depends. Acyl glycinate surfactant. The lauric acid chain and potassium are always natural, but glycine is sold both from natural sources and from chemical synthesis, so the score depends on the glycine route. Same ruling as Glycine.

INCI namePotassium Lauroyl Glycinate
CAS97632-95-6
FormulaC14H26KNO3 · 295.46 Da
FunctionAntioxidant · Cleansing
FeedstockCoconut or palm kernel lauroyl chloride condensed with…

Why the score varies

This ingredient is made commercially by more than one route, and ISO 16128 scores the feedstock actually used. Without a supplier certificate of origin the value cannot be claimed.

RouteFeedstockNOIShareNotes
natural glycinelauric acid (coconut/palm kernel) + fermentation or hydrolysate glycine + potassium hydroxide1.00Every fragment natural.
synthetic glycinelauric acid + Strecker or chloroacetic-acid glycine + potassium hydroxide0.75Lauroyl + K 222.4/295.5 = 0.75.
Ask your supplier. A batch-specific certificate of origin or bio-based carbon test (ASTM D6866) settles which route applies.

How we scored it

C14H26KNO3 295.5 Da: lauroyl C12H23O 183.3 Da and K 39.1 Da are natural in both routes; the glycinate residue 73.1 Da is natural from fermentation glycine (NOI 1.00) and petrochemical from chemically synthesised glycine (0.75). Headline shows the natural route.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

Coconut or palm kernel lauroyl chloride condensed with glycine and neutralised with potassium hydroxide.

In plain English

A gentle cleansing ingredient made from coconut fatty acid and the amino acid glycine, neutralised with potassium.

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Structure

2D structure of Potassium Lauroyl Glycinate

potassium 2-(dodecanoylamino)acetate

PubChem CID 71587368 ↗

References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 2Potassium Lauroyl Glycinate. PubChem CID 71587368. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3POTASSIUM LAUROYL GLYCINATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4POTASSIUM LAUROYL GLYCINATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POTASSIUM%20LAUROYL%20GLYCINATE