The B6 in Inhibit-P is not a deterrant to the product's overall function of prolactin control. I can't stress this enough. The Vitex extract is the main contender here. Ensuring that someone with high prolactin is not in such a state due to central B6 deficiencies (P5P) or dopamine production deficiencies (L-dopa from mucuna) is the function of the other two ingredients. They could have been spaced apart, but since we wanted to create an all-in-one product to address the issue of deficiencies, and since the mucuna extract is at 50% l-dopa and no peripheral issues were found in testing, the product was designed as it was. The Vitex will act strongly centrally, and actually has synergistic interactions with the non-L-dopa constituents of Mucuna.