Scalp cooling has been clinically proven to reduce hair loss during chemotherapy. Numerous studies have been carried out across the globe, proving that scalp cooling is the only effective method of preventing chemotherapy-induced alopecia. Scalp cooling has also been proven to promote stronger and healthier hair regrowth, even with significant hair loss. On average there is a 50% chance of a patient retaining half of their hair with scalp cooling. Outcomes do vary depending on a number of factors including chemotherapy drug regimen.