Pricing of Castor oil @ Retail stores

The cost for a 60ml Castor oil globally varies from between$3 to $18 depending on your location, environment and costs. 

Usually a 60ml bottle costs between $0.25 $0.60 per bottle and this cost is usually considered as production cost.

This is talking about best practices in Castor oil production.

However, a farmer can sell in a bulk of 200 litres drums to off takers and cut off completely the cumbersome costs of production and marketing on his or her own.