Database/Buffering/Sodium Bisulfate
100% natural origin · ISO 16128

Is Sodium Bisulfate natural?

Yes. Sodium and bisulfate ions are both mineral-derived; the compound is an inorganic salt with no organic petrochemical content.

INCI nameSodium Bisulfate
CAS7681-38-1
FunctionBuffering
FeedstockAn inorganic mineral salt produced from sodium chloride…

How we scored it

Na+ (mineral metal ion) + HSO4- (sulfate-derived); both natural-origin per mineral convention → 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

An inorganic mineral salt produced from sodium chloride or sodium sulfate and sulfuric acid. Classed as natural origin because both the sodium and sulfate fragments are mineral-derived.

In plain English

A mineral salt of sodium and sulfate, similar to a mild version of sulfuric acid in salt form. Used to adjust and buffer the pH of cosmetic formulations.

Structure

2D structure of Sodium Bisulfate

PubChem CID 516919 ↗

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. 2Sodium Bisulfate. PubChem CID 516919. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3SODIUM BISULFATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4SODIUM BISULFATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SODIUM%20BISULFATE