Jamba Juice customers can buy any 16-ounce smoothie all week for just $1 from 9-11 a.m.
No coupon is required, and the deal is available until Friday.
The location in the Peninsula Center in Rolling Hills Estates is participating in the deal, as is the store in San Pedro at 924 N. Western Ave.
The promotion excludes sales tax.
A complete list of participating locations is available online.