L'Oreal Paris Casting Creme Gloss Semi Permanent Hair Dye 210 Blue Black. Introducing new formula with 10% Glycolic Gloss Complex for glossy, intensely conditioned & low-commitment colour. Enjoy up to 3x more gloss, up to 4x silkier and visibly healthier hair for up to 32 shampoos. Follow packet instructions and do a patch test 48 hours before use. Mix color and developer wearing gloves, apply mixture and leave on as directed. Condition and rinse. Ammonia-free conditioning colour for gentle, vibrant results. Contents: 1x L'Oréal Paris Casting Crème Gloss, Semi-Permanent Hair Dye, Radiant & Natural Colour, Shade: Blue Black 210.