How we scored it
Where it comes from
Manufactured by chemical synthesis from petrochemical aromatic and heterocyclic intermediates. No natural-origin route exists.
In plain English
A synthetic dye used in semi-permanent hair colouring to add a red tone. A complex lab-made stilbene/pyridinium dye, not derived from plants.
Natural alternatives with the same function
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References
- 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.
- 2HC RED NO. 17. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3HC RED NO. 17. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HC%20RED%20NO.%2017