Natural Black Jamaican Castor Oil (Organic) Natures remedy for thinning hair. Thickens and enhances hair growth. The color of Black Jamaican Castor Oil varies slightly between brown and black depending on the beans when it is made. Castor oil has been used medicinally for over 4,000 years for all kinds of ailments. The Castor bean is native to Eastern Africa and made its way to Jamaica via the slave trade. Authentic Jamaican Black Castor Oil is accompanied by the traditional burnt smell. Over the years, Jamaicans have been using castor oil as their home-grown remedy for medicinal purposes, as well as skincare, hair care, and everyday aches and pains. It is now being used by many people to moisturize, thicken, strengthen, and increase their hair growth. Today, Jamaican Black castor Oil has crossed over into other ethnic groups and is now being used widely for some of the same purposes as well as new found uses, including eyelash and eyebrow hair growth and as a massage oil. This is a versatile oil that carries many varied uses. Shelf Life 1 year.