I've always wondered what the marketing campaigns look like for the 100 different brandings of the same product at the grocery store. Do Toothpaste A and Toothp

I've always wondered what the marketing campaigns look like for the 100 different brandings of the same product at the grocery store. Do Toothpaste A and Toothpaste Z340 target completely different demographics, or are they going for the same eyeballs with their ads?