theFormula+

Founder community · Open now

You don't have to figure this out alone.

We've helped build 300+ supplement brands. Now we're bringing that experience, network and know-how into one place for founders who want to do it properly.

Cancel any time · No contract
50+ selected members300+ brands built by the teamActive daily
A peek inside The Formula community: live events calendar, dedicated discussion boards and specialist Q&A
US · UK · EU·Access to Low MOQs (VIP)·Formulation & Sourcing·Meta, TikTok & Shopify·Branding & Design·Group & 1:1 Coaching·

"3 months into my membership I launched my first product, and did over 6K in sales in the first four weeks with ZERO ad spend."

Javier T. - Formula Founding Member

What is The Formula

A community built around real problems, not theory.

The Formula is a private community for supplement brand founders - built around live discussion boards, group coaching, and specialist-led material covering formulation, sourcing, compliance, ads, content, and growth.

You get direct access to operators who've actually built supplement brands, organized into the exact problems you're facing right now - not generic advice, not recycled slides.

It's a room you're part of for as long as you're building, with real people answering real questions every week.

Inside The Formula: the Email Marketing discussion board with a coach post on Klaviyo welcome flows

Ten boards. One room.

Every conversation has a home.

Real discussion boards inside the community, organized by what you're actually working on.

  • Supplement Product Research
  • Business Maintenance
  • Formulation & Sourcing
  • Compliance
  • Shopify & UX Design
  • Email Marketing
  • Meta Ads
  • Instagram Content
  • TikTok
  • Growth Strategy & Performance

Inside the board

This is what's being posted today...

Instagram Content

Things not to do as a business owner on Instagram: buying followers. This is one of the fastest ways to quietly sabotage an account, and most business owners don't realise the damage until months later. Instagram's systems are built to detect exactly this kind of activity...

7 likes · 1 comment

Instagram Content

We're shifting our focus to Instagram since I reluctantly became the face of our brand. What's the best way to reach Instagram creators? Cold DMs? A specific platform? We'd prefer not to use an agency, but not sure of best practice here.

Meta Ads

Ads are but ONE piece of your creative system. Get the foundations wrong and it doesn't matter how good the ad is - you're just paying to find out faster. Testing only works when two things are true: you're testing with intent, and the rest of the system is actually there.

Meta Ads

We want to test 8 different ad angles, ranging from carousels to reels. What cost should we expect and how long do we test them for to collect enough data for comparison?

Results

Launched under 4 weeks ago. Zero ad spend. Since then: over €4,000 in monthly GMV, 179 orders, up from nothing.

Names and figures blurred for member privacy - this is a real day on the board.

Testimonials

Real founders. Real results.

"Cat was absolutely first class in helping us launch our supplement. She went out of her way to find a reliable UK supplier and secured a fantastic price for our products. We're genuinely grateful for all the guidance and support."
Kevin - Nudge Supplements
"They opened doors we didn't even know existed. The knowledge of formulation, sourcing, manufacturing and compliance is exceptional."
Abe - Co-founder, Juici Supplements
"Cat helped me move forward fast. We had an agreed price with a UK manufacturer within a week. Her experience and contacts were invaluable in shaping the final stages of my product."
Shaun - Founder, Rubeth's

Proof in the market

Brands we've helped build

Real supplement brands taken from idea to shelf - formulation, packaging, content and launch.

Tailsbury supplement brand
TailsburyPet health
K.O. Gummies supplement brand
K.O. GummiesPerformance
GymGrl supplement brand
GymGrlElectrolytes
Neurostead supplement brand
NeurosteadNootropics
Miava supplement brand
MiavaBeauty
Nuvyxa supplement brand
NuvyxaMenopause
Daydrate supplement brand
DaydrateHydration
Daydrate supplement brand
DaydrateMixed berry

A snapshot - more brands launching out of the community every month.

Upcoming events

Live sessions, every week.

  1. General Q&A: Office Hours w/ Cat

    Every Tuesday · 2:00-3:00 PM CEST

  2. Pet Watch: Trends & Insights into Pet Supplements

    Every Thursday · 5:00-6:00 PM CEST

  3. Buyer Psychology: A Rundown of the Basic Theories

    Every Tuesday · 2:00-3:00 PM CEST

  4. Supplement Product Research

    Every Thursday · 5:00-6:00 PM CEST

New sessions added every week - members get the full calendar inside.

Membership

What's included in your membership

Basic

£97

per month

Full Community Access

Everything you need to build your supplement brand with proper guidance, industry connections, and expert support from day one.

  • Live expert sessions, every month
  • Every call recorded and archived, so you never miss a thing
  • A private room of founders actually building right now
  • Dedicated forum spaces on Meta Ads, TikTok, Compliance, and more - organized around what you're actually working on
  • Access to expert coaches - post your questions and get real feedback
  • Direct Q&As and compliance workshops with real specialists
  • A network of founders who've been exactly where you are
  • Member-only opportunities as they come up
  • Ready to build? Get priority access to our vetted formulators and manufacturer network through The Formula+ VIP+ membership

Every application is reviewed personally.

Formulation & SourcingMeta AdsTikTokShopify & UXEmail MarketingCompliance
The people in your corner

Not consultants. Operators.

Cat King

Founder, The Formula+

Cat King

300+ supplement brands built. Background in technical sales and leadership with deep expertise across formulation, manufacturer sourcing, regulatory positioning, Amazon, DTC growth, branding, and go-to-market strategy. The Formula+ was built because founders needed more than scattered advice. They needed a room.

300+

brands built

UK/EU/US

markets covered

Human/pet

supplement specialist

Charles

Meta & e-commerce growth

Charles

Shopify and Meta partner who builds and scales e commerce brands. He's sold three brands and is actively launching new brands. He's not teaching from a textbook, he's in it daily, obsessed with Meta ads, creatives, and offers that convert.

Marion Vitrat

Paid media & growth strategy

Marion Vitrat

12 years across Meta, Google, LinkedIn, CRM, SEO, and growth strategy. Former CMO and digital growth leader across multiple scale-ups and international brands.

Grace

Email & SMS - Klaviyo partner

Grace

Official Klaviyo partner with 10 years of daily hands-on experience helping brands build retention from day one. Speaker at the Klaviyo London Conference 2024 on demystifying customer data.

Elena

Head of community

Elena

Elena is the operations brain behind the community. She is focused on maintaining operational excellence, quality, accountability and a high-signal founder environment.

Tamara

TikTok & social growth

Tamara

Tamara is a TikTok and social media growth specialist with expertise in running campaigns, creative production, and performance marketing. She knows exactly what content actually converts.

Rachael

Organic Instagram & content strategy

Rachael

Rachael has created content professionally for years, across her own personal brands as well as for others. She helps brands build their voice, online presence, and content strategy on Instagram.

Vicki

Compliance, copy & nutrition

Vicki

Registered dietician and compliance specialist with deep expertise in UK and EU supplement regulations. She covers claims and product copy, so your brand says the right things without putting the business at risk.

Tom

Digital ads master

Tom

Tom is a UK digital ads expert who's grown household names across startups and major corporates, with over $50m spent on Meta Ads, Google Ads, and more. He helps new eCommerce brands scale through paid advertising.

Who this is for

Build your supplement brand properly

The Formula+ is built for founders who want to launch properly from day one - with better guidance, stronger industry relationships, and fewer expensive mistakes along the way.

Supplement founder planning a product launch at her desk

This is for you if...

  • You want to build a serious brand
  • You care about quality and positioning
  • You want to avoid expensive mistakes
  • You value expert guidance over noise
  • You implement, not just consume
  • You are willing to put in the work to get this right
  • You understand quality takes investment
Rows of unbranded supplement bottles on a warehouse shelf

This is not for...

  • -People looking for overnight success
  • -Generic dropship-style brands
  • -Founders unwilling to invest in quality
  • -Passive spectators who never implement

We care more about the quality of the room than the number of members inside it. Every application is reviewed personally before approval.

Questions

Everything you might be wondering.

How does the community actually work?
Everything happens in one private room, split into ten discussion boards by topic - formulation, compliance, Meta ads, Shopify, TikTok and the rest. You post the problem you're stuck on, and specialists plus other founders answer. On top of that there are live sessions every week and recordings of everything you miss.
What does it cost, and am I tied in?
£97 a month, no contract and no joining fee. You can cancel any time from your account and you keep access until the end of the month you've paid for.
Who gets in?
Every application is reviewed personally. It's built for people building a supplement brand - whether you're pre-launch and choosing a formulator, or already selling and trying to scale. If it isn't a fit, we'll tell you rather than take your money.
I haven't launched yet. Is it too early?
No - early is the cheapest time to get it right. Most expensive mistakes we see (wrong formulator, non-compliant labels, a store that doesn't convert) happen before launch.
What happens right after I join?
You get access to all ten boards, the full course and recording library, and the events calendar straight away. Introduce yourself, post your first question, and you'll usually have answers the same day.
How much time does it take?
As much or as little as you have. Live sessions are weekly and always recorded, and the boards are asynchronous - drop a question, come back to answers when you can.
Can you just do the work for me?
Yes, separately. The community is guidance and access; if you'd rather hand something over, we also take on retainer and one-off projects - ask inside and we'll scope it.

"If I died tomorrow, I'd tell whatever deity I saw that this was the best decision I ever made"

Del, Supplement Brand Founder

The Formula - Community

£97/mo

Ask your questions today. Cancel any time.

Need us to actually do the work? Visit cjksourcing.com