About ten years ago my then-hairdresser used to do what he called a "gloss treatment" - which, as he told it, involved taking an element of the hair dye process, just a clear part, and using it like a semi-perm dye. It didn't change the colour of my hair but made it nice and shiny. It lasted about a month.
I would really like to be able to do this myself at home but have got confused by all the words gloss and glaze on hair products now. Some of these seem to be just conditioner, others something more.
Can anyone suggest how to do this or a good affordable product to try? I went to Boots and stared at all the packs of hair dye - but they all seem to be colours.
TIA for your home gloss tips!