Hebe

Hebe is the Goddess of Youth.

She served as Cupbearer of the Gods, serving them the nectar of everlasting youth. She had the power to turn old people young again. She was mainly a servant who helped different gods like Athena and Ares, until she got married to Hercules after he became a deity.

She doesn't really do much in any story. Her biggest part is probably when she met Hercules.

http://www.paleothea.com/Goddesses