The dyes used by Tek are all water-based, non-toxic and hypoallergenic. The hairbrush consists of the handle treated with carnauba vegetable wax and linseed oil, with 100% FSC-certified carpal wood bristles, and cushion base in pure white rubber. It is particularly suitable for all hair types. Finished, hand polished and treated with linseed oil and carnauba vegetable wax - the wide layout of the teeth is ideal for normal, curly or wavy hair. Untangles knots in the hair without damaging the strand and is practical for travelling or in a handbag. 3040-C: natural cotton case, ecru color.