3 Powerful Ways to Use Social Proof in Email Marketing [+13 Examples] – Litmus


Social proof is a powerful way to boost brand trust and engagement in your email campaigns. In this post, we’ll share what it is, why (and how) it works, and ways to do it, with 12 examples to inspire your own campaigns.

Read on to learn:

Guide to Live Polls and Social Proof in Email

Tap into one of the most powerful ways to optimize engagement in your emails. Create a more impactful experience in the inbox, without all the heavy lifting and manual work each time.

What is social proof?

Social proof is a psychological phenomenon that explains how “human beings often make choices about what to think, and what to do, based on the thoughts and actions of others.” It’s one of the six key principles underlying the science of persuasion, through the lens of social psychology.

Why should you use social proof in email marketing?

In a world where subscribers are inundated with promotional messages (the average person sees about 10,000 ads a day), having social proof in your emails is a way to showcase the approval of your brand from customers themselves.

To put it simply, people trust people. By incorporating social proof in your emails—be it through testimonials, a tally of “likes,” or user-generated content (UGC)—you not only bolster trust with your subscribers but also add a much-needed human touch to your email campaigns. This effort is becoming increasingly crucial in an era where artificial intelligence (AI) is becoming more prevalent.

Curious to see what success our customers have had with social proof? Check out our Guide to Live Polls and Social Proof in Email to see the winning results. →

3 ways to use social proof in email marketing campaigns

Here are three ways to integrate social proof into your email campaigns using Litmus Personalize:

1. Interest Signals

Interest Signals showcase live click totals for dedicated email elements, like a product or service. By displaying this engagement, you not only add real social proof to your emails but also encourage more openers to click, making it easy for subscribers to see the value and desirability of each product.

How it works

Interest Signals are powered by clicks. Every time a subscriber clicks, the number is recorded and refreshed upon open. You can display these clicks as “likes” or “loves”—whichever you see fit!

Example: DFS

DFS showcased the number of people “loving” each product with a purple banner on top of the product imagery, showing the exact number of clicks (or ”loves,” in this email’s case) that each item is receiving. This gives subscribers a browsing experience backed and validated by their peers.

Source: Litmus’ Guide to Live Polls and Social Proof in Email

Example: T.M. Lewin

T.M. Lewin asked subscribers to choose their favorite look for each day of the week. Once each look had over 100 clicks, a “trending outfit” message appeared alongside the live number of clicks, updating at every open. The live vote had over 20,000 clicks, with the second-highest number of clicks on the last look—proving how engaging content gets subscribers to keep scrolling.

Source: Litmus’ Guide to Live Polls and Social Proof in Email

What’s more: T.M. Lewin took things further and used the data from this email to kick off a nurture campaign. Tailored follow-up emails were sent to each voter, showcasing products from their favorite look and directing them to shop the collection.

Example: Puma

Here, Puma showcased the live engagement (number of clicks) on each product. The number of likes for each shoe was displayed alongside a heart icon, giving visibility on what’s resonating the most for subscribers.

Source: Litmus’ Guide to Live Polls and Social Proof in Email

Example: New Look

New Look used social signals in banner form, displaying “Almost gone” when a product’s stock fell below a certain number—set up through their shopping feed.

Source: Litmus’ Guide to Live Polls and Social Proof in Email

Example: Litmus 1f44b - 3 Powerful Ways to Use Social Proof in Email Marketing [+13 Examples] - Litmus

You might be wondering: can a B2B brand utilize Interest Signals? The answer is absolutely! Take it from us: at Litmus, whenever we release a new resource, we’ll include Interest Signals in our announcement emails, like so:

Each time a subscriber clicks, the number of interested email geeks goes up.

The same goes for virtual event invites, too! Each time a subscriber clicks a link pointing to the event landing page, the number of “email geeks interested” goes up.

Remember: the way you position Interest Signals is completely up to you! In this case, clicks were counted as “views”:

2. Social feeds

Social feeds in email display your brand’s latest social media posts. Enhance your email campaigns by connecting your brand’s social feed, showcasing your latest social media posts to subscribers. This gives your subscriber an omnichannel experience, all while increasing visibility on your social media channels.

If your brand’s Instagram feed is the pride and joy of your organization, consider adding it to your email campaigns, with a tool like Litmus Personalize. Here’s how it works.

How it works

Litmus Personalize automatically pulls your latest social posts into your email, ensuring your emails are always up-to-date with your latest content. With each open, your email will display your latest posts automatically, reducing time and resources needed to pause and update the content in your lifecycle campaigns. 

Example: MatchesFashion

MatchesFashion sent a welcome email directly promoting their social channels. At the top, they pulled in posts from their Instagram using a social feed.

Example: Mobiles.co.uk

Mobiles.co.uk capitalizes on the real-time functionality of live social feeds using Content Automation in Litmus Personalize Pro. By showcasing the latest tweets from their X (formerly Twitter) account, it provides the most up-to-date content on open.

Source: Litmus’ Guide to Live Polls and Social Proof in Email

Example: Mamas & Papas

Mamas & Papas integrated their Instagram feed to the latter part of this email. Their Instagram content mix consists of people, products, and quotes, helping to bring more brand personality into email.

Source: Litmus’ Guide to Live Polls and Social Proof in Email

Litmus Personalize’s Instagram Feeds feature (used in the example above) automatically incorporates your latest Instagram posts into emails, simplifying the display of your latest social proof.

1f4a1 - 3 Powerful Ways to Use Social Proof in Email Marketing [+13 Examples] - Litmus Pro tip: If UGC is part of your social media content strategy, consider bringing it to email by adding a live social feed to your next email campaign. Because UGC is generated by people (versus your brand), it acts as an additional layer of social proof. Win-win!

Example: Litmus 1f44b - 3 Powerful Ways to Use Social Proof in Email Marketing [+13 Examples] - Litmus

Here’s another one for our fellow B2B marketers! Give your Instagram Feed some love by featuring it at the bottom of your newsletter (like we do in ours, Litmus Weekly):

Instagram LW 300x242 - 3 Powerful Ways to Use Social Proof in Email Marketing [+13 Examples] - Litmus
Try it for free! →

The best part: it requires no coding experience to use! Our quick-start templates were designed to keep things simple for anyone using Litmus Personalize, be it an email developer, designer, or marketer.

Here’s how it works:

3. Social feed counters

Social feed counters display data points from your social channels (such as “likes” on Instagram). It’s a step up from social feeds in email—not only are your posts displayed, but so are the “likes” that each post received!

How it works

Social feed counters pull the most current “like” status from a profile into your emails, showing subscribers what’s resonating on your social channels.

Example: Boux Avenue

Here, Boux Avenue displays the most up-to-date “like” count from their Instagram at the footer of their email, followed by a call-to-action (CTA) to follow the brand on Instagram.

Source: Litmus’ Guide to Live Polls and Social Proof in Email

Don’t just tell them: show them

Actions speak louder than words, and your emails can prove it! Boost engagement, conversions, and trust by showing—not telling—with social proof in email. Discover how you can tap into this powerful personalization tactic—and start your free trial today.

Guide to CTAs blog icon - 3 Powerful Ways to Use Social Proof in Email Marketing [+13 Examples] - Litmus

Guide to Live Polls and Social Proof in Email

Tap into one of the most powerful ways to optimize engagement in your emails. Create a more impactful experience in the inbox, without all the heavy lifting and manual work each time.

The post 3 Powerful Ways to Use Social Proof in Email Marketing [+13 Examples] appeared first on Litmus.

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