Maya Hernandez, 20, is facing charges of involuntary manslaughter and child cruelty

A one-year-old is dead after being left in a hot car for hours while his mother underwent a cosmetic procedure, police said.

Maya Hernandez, 20, is facing charges of involuntary manslaughter and child cruelty after allegedly leaving her two sons, Amillio Gutierrez, 1, and his two-year-old brother, locked inside a parked car as temperatures soared to 101 degrees in Bakersfield, California on June 29.