This sounds... absurd. I get it if they're an actual brand, but if it's a person, who the fuck cares? Sure, I don't like being duped by some hot girl telling me that drinking this green liquid is going to make me lose weight and be more attractive with the best skin ever because, OMG it's LITERALLY THE BEST, but you've gotta have common sense. It's someone posting their opinion, on the internet, with a picture.
Read the logical fine print, someone posting photos isn't a scientist making claims, or a magazine selling issues, it's safe to assume that it's just some attempt to be popular or make money through your influence.
But man, those trendy wood sunglasses I keep seeing all over Instagram... must buy now.
Edit: I bet someone at the FTC had a child duped by some pseudo celebrity gimmick marketing photo and got mad.