From the Locks of Love website:
Locks of Love is a non-profit organization that provides hairpieces to financially disadvantaged children across the U.S. under age 18 suffering from long-term medical hair loss.
We meet a unique need for children throughout the United States by using donated hair to create the highest quality hair prosthetics. Most of the children helped by Locks of Love have lost their hair due to a medical condition called alopecia areata, which has no known cause or cure. The prostheses we provide help to restore their self-esteem and their confidence, enabling them to face the world and their peers.
For more, see
www.locksoflove.org