The amount of hair loss varies from person to person, even among people taking the same drug to the same form of cancer. The amount of hair loss depends on the type of drug, the dosage and how the doses (in compressed, by i.v. [a small needle and a tube inserted directly into the vein] or on the skin).
Usually the hair returns to grow approximately between one and three months after completion of chemotherapy. In general, the Hair Replacement between six and 12 months to regrow completely.