Database/Hair Dyeing/HC Blue No. 10
100% petroleum · ISO 16128

Is HC Blue No. 10 natural?

No. HC dyes are a well-established synthetic hair-colourant class with no natural-origin fragments; structure not confirmed here.

INCI nameHC Blue No. 10
CAS173994-75-7
FunctionHair Dyeing
FeedstockSynthesised from petrochemical aromatic amine/nitro intermediates, as with…

How we scored it

No formula supplied; HC-series hair dyes are, as a class, fully synthetic small aromatic molecules → 0.0 by class knowledge.
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

Synthesised from petrochemical aromatic amine/nitro intermediates, as with all HC-series dyes. No natural manufacturing route is known.

In plain English

A synthetic dye used in semi-permanent hair colouring to give a blue tone. Like other HC hair dyes, it is manufactured entirely from petrochemical building blocks.

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Structure

2D structure of HC Blue No. 10

PubChem CID 21832404 ↗

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. 2HC Blue No. 10. PubChem CID 21832404. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3HC BLUE NO. 10. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4HC BLUE NO. 10. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HC%20BLUE%20NO.%2010