Endorsed on Instagram by a Kardashian, but Is It Love or Just an Ad?. Social Media, Online Advertising, ADVERTISING AND MARKETING, Federal Trade Commission, Truth in Advertising Inc, Twitter, Snapchat Inc, Instagram Inc, Google Inc, Jenner, Kendall, Jenner, Kylie, Kardashian, Khloe (1984- ), Kardashian, Kim, Kardashian, Kourtney (1979- )