To soften contrasting hair subtly – or to add shine, thickness, and depth—enamel and gloss is a perfect solution.
“Enamel is basically a semi-permanent color that coats hair luster and lasts up to a few washings,” says Rez. Since the pigmentation is on the top of the shaft and can be generated with light-reflecting nutrients, they are often used as a way to add shine to dull hair – or as a way to help fade any crease line. Be warned: Since it’s just on top of the hair, it rinses off with some shampoo – this is a good option if you want to pick me up temporarily before an event or something like that.
If you want something more permanent, choose a gloss paint. “A varnish needs a developer or treatment, and it seeps into the hair cuticle and lasts up to four weeks,” says Rez. I’d say about 12 to 20 washes depending on the level and the recipe, ”says Rez. Colorists often use it in salons to blend substrates.