The requirements of Sections 110720 and 110725 do not apply to any food that is packaged at the direction of retail purchasers at the time of sale if the ingredients are disclosed to the purchasers by other means in accordance with the regulations adopted by the department.
Source:
Section 110730, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=110730..