NIP Christophe Robin Hair Mask. 8.33 fl oz. With rare prickly pear seed oil. Prickly Pear Seed Oil features nurturing omegas 6 and 9 to help hair feel supple while a biomimetic ceramide smooths frizz and split ends to leave hair feeling sleek and soft. A vitamin F complex harnesses an essential fatty acid to revitalize the appearance of the hair shaft.