ORS Olive Oil Relax & Restore Joint & Joint Length Serum Wrap 4oz The ORS Olive Oil Restore & Retain Joint & Joint Length. Wrap Serum is a sealing serum specially designed for treated hair. The serum instantly restores hair and protects it from breakage and damage caused by heat styling, while promoting hair health with black seed oil, olive oil and the exclusive Oligro™ complex. Application: Apply evenly to hair. Wrap and secure the hair. Do not rinse. Style as usual.