Tuesday, March 10, 2020SCCS

Dihydroxyacetone for hair colouring: Final Opinion of the SCCS

Dihydroxyacetone pour les colorations capillaires : Opinion finale du CSSC

The SCCS has just published its final Opinion on the safety of Dihydroxyacetone as a hair dye ingredient. It was adopted at the plenary meeting on 3 and 4 March 2020, after the end of the comment period following its initial publication and review by the Scientific Committee.

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Background

DHA is currently not regulated under the Cosmetic Regulation (EC) No.1223/2009.
The SCCS was requested to assess the safety of DHA intended to be used as hair colouring ingredient in leave-on applications up to a maximum concentration of 6.25%.
The SCCS published its Opinion in November 2019.

For an exhaustive background information, see the articles
SCCS: Requests for Opinions on 3 nanos and DHA, CosmeticObs, 1st July 2019
DihyDihydroxyacetone for hair colouring: Opinion of the SCCS, CosmeticObs, 13 November 2019

This Opinion has been subject to a commenting period of a minimum eight weeks after its initial publication (from 7 November 2019 until 20 January 2020).
Comments received during this time were considered by the SCCS.
For this Opinion, parts of the SCCS answers to questions 1 and 2 have been switched and completed.

The final Opinion

1. In light of the data provided, does the SCCS consider Dihydroxyacetone safe when used as hair colouring ingredient in leave-on applications up to a maximum concentration of 6.25%?

On the basis of data provided, the SCCS considers Dihydroxyacetone safe when used as hair colouring ingredient in leave-on applications (non-oxidative) up to a maximum concentration of 6.25%.

2. …

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