Top 15 Email Subject Lines For Review Requests

5 Aug
Top 15 Email Subject Lines For Review Requests

Customer reviews are gold in eCommerce marketing.

They build trust, inspire purchases, and fuel positive word-of-mouth about your business. But how do you get your hands on these powerful testimonials?

This is where review request emails can help.

The catch is these customer feedback emails often vanish in crowded inboxes.

A well-crafted subject line can help you grab attention and get customers to open and respond to your emails.

In this post, you’ll find 15 irresistible subject lines that captivate customers, inspire action, and get reviews rolling in.

We’ve also included tips on writing attractive email subject lines for review requests and how to leverage all those awesome reviews in Sendlane.

Ready? Let’s get started!

Why are email subject lines important?

Subject lines are like the headlines of your emails. They're the first thing your reader’s eyes dart to, and a good one can make them excited to open your message.

A higher open rate means more people would be reading your awesome emails, leading to increased engagement, clicks, website traffic and email success!

If your subject line is too plain or misleading, your email might get ignored or marked as spam. This isn’t just bad news for your engagement. It can also be detrimental to your overall sender reputation and future email deliverability.

And remember, many people read emails on their phones. That’s why you need catchy lines that fit on smaller screens, grab attention and pique curiosity just enough to make people click.


15 Attractive review request email subject lines

  1. "Share Your [Product] Experience!"
  2. "Loved [Product]? Rate Us!"
  3. "Enjoying [Product]? Tell Us More!"
  4. "[Product]: Yay or Nay?"
  5. "[Your Name], Help Us Grow with a Review"
  6. "Got Feedback? Enjoy Free Shipping!"
  7. "[Your Name], How's Your New [Product] Working Out?"
  8. "Unleash Your Inner Critic: Review [Product]"
  9. "Did [Product] Make the Cut? We'd Love to Know"
  10. "We're All Ears: How Was [Product]?"
  11. "Rate Us, Get 10% Off Next Time!"
  12. "Review [Product] & Win a $50 Gift Card!"
  13. "Could You Do Us a Small Favor? 🌟🌟🌟🌟🌟"
  14. "[Your Name], Your Opinion Pays!"
  15. "Loved your new [Product], [Name]? Tell us!

7 Elements of an effective review request subject line

Creating a standout review request subject line is part art, part science.

It’s all about striking the right balance between personal touch, clarity, encouragement and timeliness.

Here are 7 key elements of a great review request subject line:

1. It feels personal

A good subject line feels like a one-on-one conversation with the customer.

When you get personal, people are more likely to notice (and open) your email.

No one wants to be treated like just another number on a spreadsheet — write subjects that speak directly to customers and make them feel special.

For example, you could address customers by their name or refer to their last purchase.

Ditch the faceless “Dear Customer...”

Something like "Emma, how's your new blender treating you?" instantly strikes a personal chord and brings warmth and familiarity from the get-go.

Here’s an example of Amazon’s personalized review request email subject line:

Smiles Davis, how do you like your ‘Legendary Whitetails Men’s Maverick Slub Henley’?

Amazon email

If you’re using Sendlane, you can easily insert individual customer data into your subject lines using personalization tags. Our intelligent platform will automatically pull contact data like names, purchases, location and any other information based on the tags you use.

2. It’s short and sweet

Avoid using too many words in your subject line.

For one, they won’t even fit.

Nearly half of customers check their emails on their phones. If your subject line is too long, it will get cut off and ruin the impact you were hoping to make.

Keep your subject lines between 30-50 characters to ensure they look great across all devices and email apps.

Don’t forget — your subject line should be concise but impactful. People have short attention spans and they’re not going to spend ages deciphering your super-complex, over-the-top subject line.

To avoid any confusion, tell a clear micro-story within the character limit. Here’s how Abercrombie & Fitch does it:

Leave a review, earn points.

Abercrombie email

3. It motivates action

Your subject line shouldn’t just look pretty. It should also nudge customers into action.

This is where incentivization can help!

Promise exclusive perks in exchange for reviews to drive more engagement. After all, who doesn’t like getting free stuff? Whether that’s a discount, free shipping or loyalty points — that’s totally up to you.

Frye does this well with their subject line that starts with their incentive:

$50 For Your Thoughts

FRYE email

Plus, FOMO is real and your customers have it too. Experiment with phrases like “limited time offer” or “special discount awaits” to create urgency and get them to click on your email.

Remember — the real victory is when customers not just open the email, but also leave a review. Something like “24 hours left to claim your 20% discount, Mia!” can encourage customers to quickly fulfill your request.

4. It’s perfectly timed

Timing is key to sending out successful review request emails.

Too soon, and customers might not have fully experienced your product. Too late, and it might no longer be fresh in their minds.

You want customers to remember the unique details of your product and be motivated enough to leave you a shining review.

Of course, the best time for you to send a request request depends entirely on your audience and the product or service you provide.

For example, if you sell a book, waiting a couple of weeks after purchase makes sense. But if it's a food delivery service, reaching out the next day or even after a few hours might get you better results.

Keep experimenting with the timing and refine your strategy until you hit the sweet spot!

Pro tip: Sendlane lets you set up automations so customers receive personalized emails at exactly the right time based on specific actions, so you can schedule your request at the perfect time post-purchase.

Sendlane automations

5. It’s polite

Here’s a secret to writing compelling review request subject line: mind your manners.

Remember — you’re asking customers for a favor. A sprinkle of politeness goes a long way.

Don’t command them to leave a review. Ask for a review politely using words like “please” and “thank you” to show customers you respect and appreciate them.

For example, Revolution Tea’s respectful subject line might win you more fans than "Give us a review. Now."

Thanks for helping us

Revolution example

6. It’s aligned with your brand voice

Pay attention to the language you use and ensure it reflects your brand personality. Keeping your brand voice consistent helps build trust and familiarity.

If your brand is playful, keep that energy in your subject line. Something like "Hey Zoe, how's the new yoga mat treating you?" maintains the brand persona while enticing a response.

Remember, your email should sound like it's coming from a friend, not a faceless entity.

Here’s a great example from Casper. Their email subject line is friendly and conversational — just like their brand voice.

How did you sleep?

Casper email example

7. It’s spam-free

Trust is paramount, and nothing breaks trust faster than sounding like spam.

Excessive punctuation (!!!???), ALL CAPS and words like "FREE", "WIN", or "BUY NOW" can set off spam filters, landing your email in the dreaded junk folder.

Keep your subject line authentic and spam-free, like "Ava, what did you think of [Product]?” This invites trust and engagement, ensuring your email sees the light of the day.

Create eye-catching review requests using Sendlane

Collecting reviews can be tricky business. While 95% of customers read reviews before buying something online, half of them leave only four or less reviews per year.

But maybe — all you need to do is ask!

With Sendlane Reviews, you can easily send out compelling post-purchase review requests using a built-in funnel and dynamic email content.

Here’s what you need to do:

  1. Log in to your Sendlane dashboard. If you don’t have already have an account, sign up here.
  2. Head to Automations from the left-hand menu and click on New Automation
  3. Set your trigger as Order Fulfilled [7 Days] and build your flow
  4. Set up your review request by selecting a new message node > email & start designing
  5. Drop the Review Block into your email design
  6. Customize the email subject line and message. Hint: This is where you apply the best practices we’ve mentioned above for writing amazing review request subject lines!
  7. Be creative, but direct in your email copy. Sendlane will auto pull product information to help customize each send!
  8. Set up a Conditional Split to follow up with customers who might need another nudge.
  9. Send a Test Email to check out the final result.
  10. Once you’re happy with everything, click on Save Changes to finish setting up your review request.

Sendlane's reviews platform will automatically send review request emails to customers post-purchase and pull dynamic content into each individual email.

This means each customer will see the exact product name and image they bought from your store in the review request they receive! Pretty cool, right?

Within the email, customers will get a link to fill out the review form on your site. 

If they have more products to review, they’ll get prompted to leave another review right then and there.

If you receive a good review, you can add it to your product page and encourage other customers to buy. And if it’s a negative review, don’t worry! It’s your chance to apologize and change their perspective about your brand.


Leverage user-generated reviews with Sendlane

Reviews are invaluable nuggets of user-generated content that do more than just provide feedback. They spread the word about your awesome products, helping potential customers choose your brand over its competitors.

But getting customers to actually leave reviews? That’s the tricky part. Thankfully, Sendlane’s built-in review request feature is designed to help you do just that!

Set up dynamic review request emails personalized for each individual recipient. Finish them up with an enticing subject line your customers won’t be able to resist.

Ready to incorporate reviews in your marketing strategy? Sign up for Sendlane’s 60-day free trial and take it for a test drive!

Review request email subject lines FAQs

How to use review moderation to protect your online reputation?
How to customize your email subjects based on customer rating?

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