Social and Behavioral Sciences Commons^™

A Study Of Factors Affecting The Credibility Of Sponsored Posts Created By Instagram Influencers, Nakyung Lee

Student Theses and Dissertations

This study examined how source expertise, objective information about product ingredients and benefits, review length, and the use of promotional language influence the perceived credibility of a sponsored review post for skincare products. This study carried out 4 in-depth interviews and online survey to 106 millennials living in the U.S. Results indicated that subjective comments about a reviewer’s personal experiences had a higher level of perceived credibility of a review post than objective information about product ingredients and benefits. With regard to source expertise, a sponsored review post written by an influencer with higher expertise was perceived as more reliable …