Database/Antioxidant/Carnosic Acid
100% natural origin · ISO 16128

Is Carnosic Acid natural?

Yes. Carnosic acid is isolated by extraction from rosemary/sage leaves; total synthesis is academic only, not commercial.

INCI nameCarnosic Acid
CAS3650-09-7
FormulaC20H28O4 · 332.4 Da
FunctionAntioxidant
FeedstockExtracted from rosemary (Rosmarinus officinalis) or sage leaves.…

How we scored it

Diterpene antioxidant extracted from rosemary; no commercial petrochemical synthesis route = 1.0.
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

Extracted from rosemary (Rosmarinus officinalis) or sage leaves. No significant petrochemical synthesis route is used commercially.

In plain English

A powerful natural antioxidant extracted from rosemary leaves. It helps protect formulations from oxidation and comes directly from the herb rather than being synthesised.

Structure

2D structure of Carnosic Acid

(4aR,10aS)-5,6-dihydroxy-1,1-dimethyl-7-propan-2-yl-2,3,4,9,10,10a-hexahydrophenanthrene-4a-carboxylic acid

PubChem CID 65126 ↗

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. 2Carnosic Acid. PubChem CID 65126. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CARNOSIC ACID. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CARNOSIC ACID. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CARNOSIC%20ACID