Many people love coffee, which is also an excellent natural hair dye. The pigments in it can help darken hair and hide grey strands. How to prepare a coffee rinse? Regular use of the coffee rinse ...

We asked top colourist Melanie Smith of London’s Josh Wood Atelier to spill her secrets for sorting a bad dye job in just one day. But do DIY hacks like baking soda and vitamin C really work?

[Teaching Tech] got an interesting e-mail from [Johan] showing pictures of 3D prints with a dye-sublimated color image on the surface. Normally, we think of dye sublimation, we think of pressing ...