Background: With social media being ever present in today's marketing world, research guiding and aiding this phenomenon is of mount importance. With social credibility and source attractiveness being lucrative schemes on citizen influencers persuasiveness towards target followers on Instagram and ultimately the drive of online purchase intentions, a holistic approach is introduced to understand each key determinant of each phenomena. Purpose: The purpose of this study is to investigate the determinants of citizens influencers’ persuasiveness and its relationship with source credibility and source attractiveness, as well as determining a consumers’ online purchase intention on the social media platform Instagram. Method: The study was written in a quantitative manner, aiding the need for generalizable data within the field. An exploratory research design was used with web-based surveys sent out to the sample selection for completion. Main Findings: Four out of the five hypothesis regarding source credibility and attractiveness towards the persuasiveness of citizen influencers were rejected, indicating interesting results as it contradicts previous literature. Furthermore, online purchase intention hypotheses were found to have more positive alignments towards citizen influencers. Grounds for theoretical and practical implications as well as future research endeavors were found.