Christophe Robin Regenerating Mask with Prickly Pear Oil 250ml NEWMR250from £27.50 up to £111.00 Compare prices10→Repair and protect your hair with the Christophe Robin Regenerating Mask with Rare Prickly Pear Seed Oil. A wonderful multi-tasker, it regenerates the roots, seals split ends and boosts the intensity more→of your hair colour. Within minutes, the appearance and texture of your hair will be transformed.