Final answer:
A 'Certified' synthetic color means that it meets the rigorous safety standards necessary for usage in consumables and other products. These are given an FD&C number in the U.S. after FDA approval, distinguishing them from natural color additives which are exempt from certification.
Step-by-step explanation:
If a synthetic color is 'Certified', it means it meets safety standards set by regulatory authorities. These synthetic colors are produced artificially and are widely used because they provide consistent, vibrant colors, are more affordable, and blend smoothly to create various hues. In the United States, these colors are given FD&C numbers once they've been approved by the FDA for use in foods, drugs, and cosmetics. Examples of certified colors include FD&C Yellow No. 6.
Colors that are exempt from certification are derived from natural sources such as vegetables, minerals, or animals and may be more costly. They can also potentially add unintended flavors to food, which is generally not the case with certified colors.
Both certified and exempt colors undergo rigorous safety evaluations before being approved for use. The certification process ensures that each synthetic color additive adheres to specific safety and quality standards to be considered safe for consumption and use in various products.