"Product endorsements" refers to the practice of famous individuals or public figures promoting or recommending a particular product or service to the public. Full definition
He also runs his own production company and does product endorsements. (businessinsider.com)
Having a celebrity endorse or associate with a brand is more about awareness and access to their network or influence than it is about actual product endorsement. (inc.com)
A number of big sports players make their biggest money off the court or field, namely through lucrative product endorsements. (cnbc.com)