Get silky-smooth hair with OGX Moroccan Argan Oil, Extra Strength. This 3.3 oz OGX Argan Penetrating Oil is enriched with Vitamin E and antioxidants to improve your hair growth and help repair split ends. OGX Argan Oil works to restore the moisture content of your hair because a low level of moisture will cause your hair to break off instead of staying strong, soft and silky. You can use Extra Strength OGX Moroccan Argan Oil on wet or dry hair. This penetrating oil is ideal for those who want to repair damaged hair. This oil is not tested on animals.