04.Grey coverage results
We wanted to know whether these 'complete' and 'permanent' grey coverage hair dyes are really permanent enough to keep the rest of your grey hair covered until you do your roots again. Some were better than others:
- Eleven out of the 14 trialists testing CLAIROL Nice 'n Easy rated it as very effective at covering greys, both immediately after dyeing and three weeks later.
- Ten out of 12 trialists thought SCHWARZKOPF Live Salon was very effective at covering greys immediately after dyeing and eight said it was still covering them three weeks later.
- 10 out of 14 trialists said that L'ORÉAL Paris Excellence was still covering greys three weeks after using it.
DECORÉ received the lowest rating for grey coverage, with only four of the 11 trialists saying it continued to cover all grey hairs throughout the trial period.
ATLANTIS HAIR Watercolour also scored poorly for grey coverage. Only five of the 14 trialists thought this product was very effective at covering greys and four commented that it didn't cover them from the start
Washing in watercolour?
One product, ATLANTIS HAIR Watercolour, was ammonia and hydrogen peroxide-free, but it does contain p-phenylenediamine (PPD), so some people may still be sensitive to it (see Chemical reaction).
It works as a stain, 'wrapping' itself around the hair shaft. Unlike other permanent hair colours, which can be quite harsh, it claims to improve the condition of the hair. It was however, the most expensive dye tested, at $25.95.
Unfortunately for those who are thinking of using it for its lower content of harsh chemicals, it got the equal-lowest score. mainly due to its ineffective grey coverage. Only five of the 14 trialists thought this product was very effective at covering greys and four commented that it didn't cover them from the start.
Several trialists did comment on the softness of their hair. "Surprised that my hair still felt and looked soft [after three weeks]" said one.