Discussions tagged with 'hair-dye-formula' alasilva What is the function of surfactants in hair dye? alasilva replied 3 years, 9 months ago 2 Members · 2 Replies Formulating smallpiglet How to begin formulating semi-permanent vegan rainbow hair dyes? MarkBroussard replied 3 years, 11 months ago 2 Members · 1 Reply Hair hairtruly Hair dye / colour making hairtruly replied 4 years, 3 months ago 1 Member · 0 Replies Hair Viewing 1 - 3 of 3 discussions