The influential marketing sector, currently valued at $24 billion, faces a major dilemma: trust is eroding even as the industry rapidly expands. Despite 88% of consumers stating that authenticity matters, nearly half believe most influencers are fake. Over a third of consumers feel influencers misrepresent both themselves and the products they endorse.
To overcome this paradox and build genuine credibility, brand managers must understand that authenticity is co-created through interactions and emerges when there is alignment across five critical dimensions:
- Expertise
- Connectedness
- Integrity
- Originality
- Transparency.
This framework is detailed in the article “Authentic Influencer Marketing: Five Trust Dimensions,” published in the Harvard Business Review by authors Barbara Duffek, Andreas B. Eisingerich, and Omar Merlo.
Authenticity is not a fixed trait; it is co-created by influencers, brands, followers, and agencies. These five dimensions are weighted differently by stakeholders, often leading to trust breakdowns. For instance, consumers primarily seek genuine concern (Integrity) and openness about paid partnerships (Transparency).
In contrast, influencers tend to prioritise being credible within their niche (Expertise) and having a distinct personal voice (Originality). Brands frequently focus on broad reach and controlling the message rather than establishing a reciprocal connection with consumers. When priorities clash—like when brands push for short-term gains or influencers hide their financial motives for fear of being seen as “sellouts”—authenticity vanishes. This misalignment across the dimensions undermines customer trust.
Expertise is derived not from formal credentials but from consistently demonstrating ongoing, real-world experiences within a specific domain. Audiences often find amateur runners training for a 10k more relatable and trustworthy than Olympic athletes, as the amateurs feel more relatable. For example, beauty influencer Jackie Aina builds expertise through deep product knowledge and consistent, candid reviews.
Authenticity suffered when brands partnered with influencers outside their established niche, such as when Volvo tapped fashion creator Chriselle Lim to promote an eco-friendly line, resulting in criticism for lacking authenticity. Conversely, Canon achieved credibility by collaborating with vlogger Emma Chamberlain, whose existing use of their cameras aligned naturally with her content.
Similarly, Connectedness requires moving beyond simple metrics like follower counts toward mutual, reciprocal interaction. Successful strategies involve ongoing dialogue; Sephora’s use of Instagram Live Q&As, for example, transforms followers into active community participants, fostering credibility and trust. Treating influencers merely as “statues to be admired” risks making the marketing feel transactional.
The remaining dimensions emphasise honest communication and creative freedom. Integrity means acting in the audience’s best interest, not just for financial gain. Audiences do not necessarily mind self-interest, provided it is fully transparent. Creators like Samantha Ravndahl resist deals that clash with her values, disclosing gifted products or affiliate commissions, signalling that her audience is a community, not just a monetised asset.
Originality is built through a creator’s distinct voice and narrative style. Brands should avoid rigid scripts, as demonstrated by Colgate’s effective use of comedian Sabrina Brier’s trademark sarcasm. Over-scripting, such as Poppi soda’s Super Bowl campaign using identical vending machines sent to influencers, can be criticised as “extravagant” and “out-of-touch bs”. Finally, Transparency requires honesty, not perfection.
When an influencer shows flexibility, for instance, promoting one brand’s product while still incorporating a competing product into their routine (like Victoria Magrath using both Redken tools and a Dyson dryer), the message feels more trustworthy. Paradoxically, revealing a small, low-stakes imperfection can reduce consumer uncertainty and bolster believability, making positive claims more credible. When these five dimensions are strategically managed, influencer marketing moves from being transactional to being transformational.
