The advertisement is using the scientific approach. In this approach, the product is introduced to the consumers as either effective or reliable through the provision of scientific evidence. It would be using quantitative data to persuade the consumers of the effectivity of the product. Just like in this example, the company were able to test their product proving that 80% of the stains would be erased without adding any additional additives. In these advertisements, the product is claimed to be effective through several successful experiments. Another example of this advertisement is a commercial where the company will be conducting a live experiment. They will be comparing two products and test which of the two is effective.
