Bakuchiol is a specific chemical that can be isolated and directly extracted from the seeds of the babchi plant (Psoralea Corylifolia). The chemical Bakuchiol is present in variable quantities in carrier oils produced from babchi seed. These carrier oils are usually named babchi oil or bakuchi oil.
If you're shopping for a Bakuchiol product, make sure to look at the ingredient list for the name "Bakuchiol" as a stand-alone ingredient. That's how you know the product contains pure Bakuchiol oil extracted using a very advanced process called monomolecular extraction.