Three new hair dyes (HC Yellow n°17, 1-Hexyl-1H-pyrazole-4,5-diamine hemisulfate, Basic Blue 124) and a nanomaterial (Hydroxyapatite)… The SCCS has just received four requests for scientific Opinions on 25 June 2014. Details.
HC Yellow n°17
Background
Submission I on the hair dye HC Yellow No. 17 (INCI) (No B121) CAS No 1450801-55-4 with the chemical name Di-[2-[4-[(E) -2-[2,4,5-trimethoxyphenyl] vinyl]pyridinin-1-ium] butanoyl] aminoethyl]disulfanyl dichloride was transmitted by Cosmetics Europe in April 2014.
The new ingredient HC Yellow No. 17 (B121) is planned to be used in non-oxidative hair colouring products at concentrations of up to 0.5%.
Questions to SCCS
1. In light of the data provided, does the SCCS consider HC Yellow No. 17 (B121) safe when used in non-oxidative hair colouring products at concentrations of up to 0.5%?
2. Does the SCCS have any further scientific concerns with regard to the use of HC Yellow No. 17 (B121) in cosmetic products?
Further information
• The full text of
Request for a scientific opinion: Submission I on HC Yellow No. 17 (Colipa No B121) CAS No 1450801-55-4
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1-Hexyl-1H-pyrazole -4,5-diamine hemisulfate
Background
Submission I on the new hair dye with the chemical name 1-Hexyl-1H-pyrazole-4,5-diamine hemisulfate (IUPAC) (No A163) CAS No 1361000-03-4 was transmitted by Cosmetics Europe in May 2014.
The new ingredient 1-Hexyl-1H-pyrazole-4,5-diamine hemisulfate (A163) is planned to be used as an oxidative hair colouring agent (precursor) in oxidative hair dye formulations at a …
