Thursday, September 10, 2015SCCS

Hair dyes: 3 Opinions of the SCCS

 © CosmeticOBS-L'Observatoire des Cosmétiques

On June 25, 2015, during its 10th plenary meeting, the SCCS has adopted its Opinion on three hair dye cosmetic ingredients: 2,5,6-Triamino-4-pyrimidinol sulfate, HC Yellow No. 17, and 2,6-Dihydroxyethylaminotoluene. These Opinions have just been published and are open for comments until 28 October 2015.

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 2,5,6-Triamino-4-pyrimidinol sulfate


The hair dye 2,5,6-Triamino-4-pyrimidmol sulfate is an oxidative hair colouring agent used at an on-head concentrations of up to 0.5%.
COLIPA has transmitted new information and scientific results of a newly conducted HRIPT test and gene mutation assay.

For exhaustive background information, see the article
SCCS: request for Opinion (Hair dyes) (December 29, 2014)


 1. In light of the new data provided, does SCCS consider 2,5,6-Triamino-4-pyrimidinol sulfate as safe for use as an oxidative hair dye agent with an on-head concentration of 0.5%?

In the light of the new data provided, the SCCS considers the use of 2,5,6-triamino-4-pyrimidinol sulfate as an ingredient in oxidative hair dye formulations at a maximum concentration of 0.5% on the head is safe.

 2. Does the SCCS have any further scientific concerns with regard to the use of 2,5,6-Triamino-4-yrimidinol sulfate in cosmetic products?

A skin sensitising potential of 2,5,6-triamino-4-pyrimidinol sulfate cannot be excluded.

Deadline for comments

 28 October 2015.

HC Yellow No. 17


The new ingredient HC Yellow No. 17 (B121) is planned to be used in non-oxidative hair colouring products at concentrations …

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