Any added poisonous or deleterious substance, or color additive, shall be considered unsafe for use with respect to any drug or device unless there is in effect a regulation adopted pursuant to Section 110090 that prescribes its use in or on drugs or devices.
Source:
Section 111240, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=111240..