Hey, it's Geb from Email Rev Lab!
At 2:51 AM this morning, I signed up for Jarrow Formulas' newsletter.
The email hit my inbox in under a minute. That's fast. Faster than most brands I audit.
Then I opened it.
The greeting said "Hi,"
Not "Hi Geb." Not "Hi there." Just "Hi comma." A broken personalization tag staring me in the face. That's the moment I knew something was off.
The Brand Bridge:
Jarrow Rogovin started this company in 1977. He personally delivered supplements to LA health food stores. That's how much he believed in this stuff.
Nearly 50 years later, Jarrow Formulas has 400+ formulations and a reputation built on superior science.
But superior science doesn't fix a broken merge tag. And it doesn't explain why there's no offer, no incentive, and no reason for a new subscriber to buy today.
The Pop-up Test:
The pop-up is clean. Red and white. Products look premium.
But the copy says "Sign up to receive the latest updates."
That's it. No discount. No free guide. No reason to hand over an email address other than updates nobody asked for.
If you're not giving something, you're asking for trust without earning it.
The Tech Test:
Email delivery: under 1 minute. That part's great.
But the email landed in the Promotions tab. That's normal for marketing emails. It's not a disaster. But it's a missed opportunity. A welcome email that hits Primary gets seen faster and signals to Gmail that your subscribers actually want your content.
And that broken "Hi," personalization tag? That tells me their Klaviyo flow was never properly tested before going live. One bad merge tag destroys trust faster than a bad product review.
The Inbox Test:
Subject line: "Welcome !"
There's a space before the exclamation mark. It looks like another broken personalization tag. Like they meant to pull in a first name there too.
Preview text: "Thanks for subscribing to the Jarrow Formulas newsletter."
That's a missed opportunity. Preview text is prime real estate. You get 40-130 characters to make someone click. "Thanks for subscribing" doesn't do that.
The Email Creative Test:
The email looks good. Clean layout. Bold red header. Products shown with category links.
But the hero section says "Hi," with a blank space. That's the first thing you see.
There's no offer. No incentive. No reason to buy now. Just a "Shop All" button and three product category images.
The sign-off is "Your friends in science." That's actually pretty good. But it's wasted on a cold email with no hook.
The Fix (Klaviyo, 3 Steps):
Step 1. Open your Welcome Series flow in Klaviyo. Find every instance of the first name merge tag. Change it to {% if first_name %}Hi {{ first_name }},{% else %}Hey there,{% endif %} - this prevents blank greetings when the tag fails.
Step 2. Add a welcome discount to the pop-up. Change "Sign up to receive the latest updates" to "Sign up for 15% off your first order." Then, create a coupon code in Klaviyo and drop it in Email 1 of the flow. A clear offer gives new visitors a reason to subscribe and a reason to buy.
Step 3. Update your subject line and preview text. Test something like "Your Jarrow discount is inside" vs "Welcome to nearly 50 years of better science." Then use the preview text to deliver the actual discount or hook, not a thank-you.
The Impact Statement:
A broken personalization tag is the first impression Jarrow makes on every new subscriber. And a welcome flow with no offer is a conversion opportunity left on the table.
The Curiosity Hook:
Here's what I'm curious about: what's Jarrow's current welcome flow click-through rate? Because with a "Welcome !" subject line and no discount offer, I'd bet it's well below what their 400+ product catalog deserves.
Jarrow Formulas has nearly 50 years of science and a loyal global following. They just need their welcome email to match that standard.
I send these audits daily because bottlenecks like this can be fixed in one day with the right information.
Want me to audit your Klaviyo account the same way?
Reply to this email, and I'll send you a free breakdown of where your welcome series is leaking revenue.
Geb Vence
P.S. I run Email Rev Lab. We've generated $334k+ for brands by building systems that feel like conversations, not ads. I only work with 3 brands per month. Schedule your call here.