She has been remanded in custody to appear at Barkingside Magistrates’ Court on Tuesday, 16 June.
The charge follows an incident on 4 June in Wilmington Gardens, where officers located two injured males. One had suffered gunshot wounds and the other suffered non-life-threatening injuries.
A 24-year-old man remains in a critical condition in hospital. The second victim’s injuries were not life-threatening.
The investigation is being led by Trident detectives from the Specialist Crime Command.