Prev11 of 19Next 10. Maria Nila The gentle goodness of vegan products can be amazing for your skin but they sometimes miss the mark when it comes to coloured hair. The Swedish brand Maria Nila has a wealth of 100 per cent vegan products that nourish and refresh your dyed locks. Maria Nila Colour Refresh in Cacao Intense, £16.99 Prev11 of 19Next