Database/Colorant/CI 77346
100% natural origin · ISO 16128

Is CI 77346 natural?

Yes. An inorganic cobalt/aluminium oxide pigment; classed as mineral origin under ISO 16128 like other CI inorganic colorants, regardless of manufacture method.

INCI nameCI 77346
CAS1345-16-0
FunctionColorant
FeedstockManufactured by calcining cobalt oxide with aluminium oxide…

How we scored it

Cobaltous aluminate (cobalt blue), an inorganic mineral-type pigment; minerals and derived minerals are natural origin.
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

Manufactured by calcining cobalt oxide with aluminium oxide to form the spinel pigment. No petrochemical alternative applies; it is classed as mineral/inorganic origin.

In plain English

Cobalt blue, an inorganic pigment made from cobalt and aluminium oxides. Classed as mineral/natural origin under cosmetic standards even though it is manufactured rather than mined.

CosIng definition: CI 77346 is classed chemically as an inorganic colour. It consists chiefly of cobaltous aluminate.

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. 2CI 77346. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3CI 77346. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CI%2077346