Direct Response Copywriting

Your Ads Get The Click. Your Advertorial Should Close The Sale.

I write RMBC-structured advertorials, sales pages, VSLs, and ad copy for DTC supplement and ecom brands that turn paid traffic into revenue. Not impressions. Not engagement. Revenue.

Book a Strategy Call See the Numbers

The Gap in Your Funnel

You're spending real money on traffic. So why isn't it converting?

Your media buyer is doing their job. CPMs are manageable. CTRs look solid. But somewhere between the click and the checkout, the sale dies.

Nine times out of ten, it's the copy in between. The advertorial that reads like a blog post nobody asked for. The sales page that describes the product instead of selling it. The VSL that sounds like every other VSL in the category.

Good copy isn't "content." It's a conversion mechanism. Every sentence exists to move one person from skepticism to purchase. Miss that, and you're paying for traffic you never convert.

That's the gap I close.

What I Write

Copy that does the selling your product can't do for itself.

Primary Specialty

Advertorials

The bridge between your ad and your sales page. I write advertorials using the RMBC framework that pre-sell so effectively, your checkout page feels like a formality. They read like editorial content. Underneath, they're engineered to convert cold traffic at scale.

Every advertorial is built on real customer research, real objections, and a mechanism story that makes your product the only logical solution. Not a template with your product name dropped in.

Cold traffic advertorial

2.1x ROAS

Advertorial + sales page rewrite

ROAS 2.4 → 3.07

Ecom advertorial + ad copy

2.38x ROAS

Long-Form

Sales Pages

Long-form sales pages built on research, not templates. Every headline, subhead, bullet, and CTA earns its place on the page. Whether it's a supplement lander or an ecom product page, the copy does the heavy lifting so your price feels justified.

Full funnel CRO: ROAS 1.27 → 2.34

Paid Media

Meta Ad Copy

Hooks that stop the scroll. Angles that crack open new audiences. Body copy that makes the click feel like the obvious next move. Written across single image, carousel, and video formats with multiple hook variations per angle.

30+ finished ads per campaign suite

Video

VSL Scripts

Video sales letters with pacing, timing markers, and emotional architecture. Built to hold attention and drive action for 15, 30, or 45+ minutes. I've also produced and edited VSLs, so every script is written with production reality in mind.

$89,224 in 14 days from a single VSL launch

Optimization

CRO Audits

Conversion rate optimization audits across your entire funnel. I score every touchpoint against seven levers: promise clarity, message-market match, friction, proof, motivation, risk reversal, and CTA strength. You get a prioritized fix list, not vague advice.

Structured seven-lever audit framework

Retention

Email Sequences

Re-engagement, welcome, and post-purchase sequences that recover abandoned revenue. Tested across Active Campaign and Maropost. Written to convert, not just land in the inbox.

Complete lifecycle email architecture

Track Record

Results. Not promises.

3.07x

ROAS after copy rewrite

Testosterone support supplement. Previous ROAS was 2.4x. Advertorial and sales page rewrite.

$89,224

Revenue in 14 days

Men's health VSL. Cold traffic launch. Single video sales letter.

2.34x

ROAS from 1.27x baseline

Health supplement brand. Full funnel CRO and copy overhaul.

2.1x

Cold traffic ROAS

Supplement brand advertorial. Cold traffic only. No retargeting.

2.38x

ROAS on ad + advertorial

Ecom brand. Ad copy and advertorial working together.

100+

Five-star Upwork reviews

Across DTC, supplement, and ecom clients. Consistent results, not a lucky streak.

Who's Writing Your Copy

Pieter Koorsen

11+ years of copy that had to sell. Or I didn't eat.

I'm Pieter Koorsen. I've been writing direct response copy since before "advertorial" was a line item on most media plans. DTC supplements, ecom brands, health and wellness offers. If it needs to convert cold traffic into buyers, I've written it.

Trained under Stefan Georgi in the RMBC method. Every piece of copy I write is built on a framework: Research, Mechanism, Brief, Copy. Not vibes. Not "creative direction." A process that produces results you can measure in your ad manager.

I've spent five years writing for a ClickBank Diamond-tier vendor generating $65M+ in annual revenue. That's not a side gig. That's writing copy at scale for offers where every word gets tested, tracked, and measured against cold hard numbers.

11+ Years

Writing direct response copy for DTC and supplement brands

RMBC Trained

Certified under Stefan Georgi's Research, Mechanism, Brief, Copy framework

$65M+ Vendor

Five years writing for a ClickBank Diamond-tier vendor

100+ Reviews

Five-star average on Upwork across DTC and ecom clients

How It Works

No guesswork. No "let's see what sticks."

Every project starts with research and ends with copy you can put in front of traffic the same week.

01

Strategy Call

We talk about your offer, your audience, your funnel, and where the conversion gap is. 30 minutes. No fluff.

02

Research

I dig into your market. Customer reviews, competitor copy, objection patterns, VOC data. This is where winning copy actually comes from.

03

Write

RMBC-structured copy. Mechanism-led, research-backed, built to convert. You get a first draft plus a brief explaining every strategic choice.

04

Launch

One round of revisions. Final copy delivered ready for traffic. I stay available for performance questions once it's live.

Let's talk about your funnel.

Book a free strategy call. I'll look at what you're running, tell you where the copy is leaking conversions, and whether I can help. No pitch deck. No pressure. Just a direct conversation about what's working and what isn't.

Book Your Strategy Call

Usually respond within 24 hours.