Grapefruit juice was a total failure. I don't think it took any oil out of my hair at all and TD said it smelled funny. By today (day 2 after washing), it was intolerable looking and I had to wash again.
I gave the BS/ACV another try, washing my hair separately to try to minimize allergic reactions. I used Ivory soap. After showering, I put on clothes that had previously not made me itch. I'm now awaiting any itching data.