Vitamin d gel on the scalp: a new hope against chemo hair loss?

This early-stage trial is testing whether a topical solution containing calcitriol, a form of vitamin D, can safely reduce hair loss in adults receiving taxane-based chemotherapy for breast, gynecologic, or other solid tumors. Participants apply the solution to their scalp twice daily, starting before chemotherapy and continuing for at least three months. Researchers will monitor side effects, measure how much of the drug enters the blood, and track hair loss through photographs and diaries.