Yes, 66.3% of patients in the multi-center clinical study kept at least 50% of their hair. Typically, patients will start to see shedding (overall thinning of the hair) around 18-21 days from the initial chemo treatment. If you are on a weekly dosage that is not as strong, you may see more shedding around weeks 4-5. Effectiveness is dependent on several factors including chemotherapy regimen, dose, duration of drug infusion, chemotherapy drug metabolism, and concomitant comorbidities.