Suppliers get throughout the analog act just by marking the substances as “not for human consumption.” Research chemical compounds like 4-fa are sometimes bought beneath the guise of “bathtub salts,” “incense,” or other (non-edible) home solutions to keep up the legally practical fiction that they're not getting marketed as medicines. https://mynichedirectory.com/listings12843661/the-smart-trick-of-4-fluorococaine-for-sale-in-australia-that-nobody-is-discussing