Vitamin Enriched Hair Lotion Conditioner. Blue Duchess Oil Moisturizer is a multi-purpose Hair Lotion and Conditioner. Blue Duchess Oil Moisturizer contains special properties which help recondition dry hair - especially hair that has been injured through repeated use of chemical relaxers, hot curling combs, or hair dryers. When used regularly, it aids in restoring the natural sheen and buoyancy that are the hallmarks of healthy, beautiful hair.