Discussions tagged with 'hairdye' Bureta14 Why adding buffer to semi-permanent hair dyes? chemicalmatt replied 2 years, 1 month ago 3 Members · 2 Replies Formulating Kendra716 Help With Formulating Semi Permanent Dye RawMaterialGirl replied 2 years, 9 months ago 5 Members · 6 Replies Hair MorganM Looking for chemist to help me create a hair dye biofm replied 3 years ago 4 Members · 5 Replies Requests / Opportunities Viewing 1 - 3 of 3 discussions