Sage Lee, a 15-year-old from Downey, has been missing from her home since Monday, April 21.
Lee, who carries an Epi pen for an allergy to extreme cold, could be in the Bell Gardens, South Gate or Downey areas with a male friend.
Lee is 5-foot-3 and 110 pounds with light brown hair and brown eyes. She is a fan of going to Disneyland parks and has an annual pass.
Anyone with information of Lee's whereabouts are encouraged to call the Downey Police Department at (562) 861-0771 or mother, Kim Lee at (562) 688-9119.