Database/Skin Conditioning/Ferric Citrate
100% natural origin · ISO 16128

Is Ferric Citrate natural?

Yes. Fermentation-derived citric acid combined with iron, a mineral treated as natural origin like iron oxides.

INCI nameFerric Citrate
CAS3522-50-7
FunctionSkin Conditioning
FeedstockCitric acid from fermentation neutralised with an iron…

How we scored it

Citrate (fermentation) + Fe (mineral ion, natural per the iron-oxide convention) — both natural → 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

Citric acid from fermentation neutralised with an iron mineral source. No petrochemical alternative exists for either fragment.

In plain English

An iron salt of citric acid, the natural fruit acid also made by fermenting sugar. Used to condition skin and deliver iron in formulations.

Structure

2D structure of Ferric Citrate

PubChem CID 61300 ↗

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. 2Ferric Citrate. PubChem CID 61300. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3FERRIC CITRATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4FERRIC CITRATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=FERRIC%20CITRATE