VSL vs TSL: Which Sales Letter Format Converts Better in 2026?

Every few weeks a supplement or info-product owner asks me the same question in the first ten minutes of a call: should we run a VSL or a TSL?

The honest answer is that the format matters less than where the traffic comes from. I've written both since the VSL format appeared, and the pattern in the numbers is consistent enough to give you a rule you can act on today. Then I'll show you the numbers behind it and the sequence I'd follow if you can only build one of the two this quarter.

The one difference that explains everything

A VSL is heard. A TSL is read. Everything else follows from that.

When a viewer presses play on a video sales letter, I decide the order they meet the argument in. They can't skip to the price, because the price isn't on screen. If the first ninety seconds earn their attention, they get the story, the mechanism and the proof in the sequence I built, and by the time the price arrives it has been framed. That control is why VSLs took over cold-traffic direct response from 2007 onward.

When a reader lands on a text sales letter, they're in charge. They skim the subheads, scroll to see how long it is, check the price, and decide whether to come back up and read. A TSL has to sell twice: once to the skimmer, through subheads and bolded lines, and once to the reader who stays. That's harder to write well, which is why so many TSLs underperform. It's also why a good one converts readers who would have closed a video after twenty seconds.

So the question is really about your buyer's behaviour at the moment they arrive. And that is set by the traffic source.

The traffic-source rule

Here's the pattern I've seen across my own funnels and the ones I've reviewed as Copy Chief, and it matches what Stefan Georgi has published from his own testing.

Native and YouTube traffic: the VSL usually wins. A reader arriving from a native ad or a YouTube pre-roll has already opted into a story. They're in a lean-back, consume mode, and a VSL that controls the sequence outperforms a page they'd skim.

Facebook and Instagram traffic: the TSL often matches or beats the VSL. The reader arrives from a scroll. They're in lean-forward, skim mode, and a twenty-minute video asks for a commitment they haven't made yet. A TSL lets them skim the subheads, find the hook that matches the ad, and read on their own terms. The Abundant TSL I wrote reached 340 percent ROAS on Facebook cold traffic as a long-form, story-driven text page, and I don't think a video would have done better with that audience.

Email traffic: roughly even. A subscriber already trusts the sender, so the format matters less than the offer and the argument. Build whichever is cheaper, which is the TSL.

Retargeting: the TSL. A visitor who has already seen the video and left rarely watches it again. A text page gives them a different way in.

There are exceptions in every direction, and the right answer for your offer is a split test. But if you have to choose without one, the traffic source is the best predictor I know.

The numbers from my own funnels

I'd rather show you results than theory, so here are the formats behind some of the work on my portfolio.

• The cold-traffic funnel I wrote for Conor Reynolds runs a VSL into a sales page and converts at 8 percent at the page. The video and the page came from the same angle map.
• The Gluco 6 blood-sugar supplement VSL generated $40 million. The Mobile Profits biz-op VSL reached number one on ClickBank and did over $30 million, converting up to 4 percent on cold traffic.
• The Abundant TSL, a long-form story-driven text page, reached 340 percent ROAS on Facebook cold traffic.
• The Monetari Fund TSL converted 5.7 percent of opt-ins to sales.

Four winning funnels, two formats, and the deciding factor in each case was the traffic and the buyer, not a belief that one format is better.

VSL vs TSL, side by side

What each format costs

A TSL costs the copywriting and the page. A senior direct-response writer charges roughly $15,000 to $35,000 for a long-form sales page, and the build is a day or two of a developer's time in most page builders.

A VSL costs the script and then production. Senior VSL scripts run $20,000 to $50,000, and production adds anywhere from $500 for a voiceover and slides to $25,000 for on-camera talent and a professional edit. AI video production has pulled the low end down a long way in 2026; I produce test versions of my own scripts through an AI studio stack before a client pays for a human shoot. I've broken the full ranges down in how much a VSL costs.

The number most owners forget is the testing cost. A TSL headline test is a text change. A VSL hook test is a new recording, a new edit and a new render. Over a quarter, that difference decides how much you learn about your market.

Compliance: the TSL has a real edge

If you sell supplements, financial products or anything else Meta and Google review hard, the TSL is easier to live with. Every claim is on the page where a reviewer and your own compliance check can read it. When a line gets flagged, you change the text and resubmit. A flagged VSL line means new audio, a new edit and a new upload, and the ad stays down while that happens.

A VSL can still be compliant. Mine are written with compliance built in from the first line, and the compliance checker in my Claude Code skills runs over every script before it ships. The difference is that a mistake costs more in video, so the writing has to be right first time.

The hybrid page: what most scaled offers actually run

Walk through the top offers in supplements and info products and you'll find the same page shape: a video at the top, a full text sales letter below it, often revealed after a delay so the first few minutes of the video get a fair hearing.

The hybrid serves both buyers. The viewer who prefers to watch, watches. The reader who arrived from Facebook and wants to skim, scrolls. The retargeted visitor who already saw the video finds a different way in. And the page carries the full argument in text for anyone whose sound is off.

The trap is building the two halves separately, with different hooks and different promises. The ad, the video and the text should tell one story. I write the VSL and the TSL from the same angle map so they do, and when I'm engaged as a VSL copywriter the TSL adaptation is part of the same project.

If you can only build one first

Here's the sequence I'd follow for a new offer with a limited budget.

Match your main traffic source. Facebook-first offer: write the TSL. Native or YouTube-first: write the VSL.

Validate the argument in text where you can. If the economics allow, a TSL is the cheaper place to find out whether the hook, the mechanism and the offer work. Headline and lead tests are nearly free. Once the argument is proven, scripting it as a VSL is low risk.

Adapt, don't restart. A winning TSL gives you a validated persuasion architecture to script. A winning VSL gives you a script to rewrite for the eye. Either way the second format costs a fraction of the first.

Build the hybrid when both exist. Video on top, text below, one story.

Then test the thing that matters. Length, hook and offer. Not format. Format was decided by the traffic.

What I'd tell a supplement owner on a call

If you sell a supplement on cold traffic and you're asking VSL or TSL, you'll most likely end up with both, and the order depends on where your media buyer is spending. Build the one that matches that spend. Get it converting. Adapt it into the other. Put them on one page.

If you'd like a second opinion on your own funnel, send me the current page or script and the back-end numbers before a call and I'll tell you which format I'd build next and why. I write VSLs and sales pages and TSLs, and I quote a fixed price within 48 hours of the call. If you're still choosing a writer, my ranked list of the best VSL copywriters says who is actually taking clients.

Book a strategy call.