Launch your supplement brand in 8 weeks.
We build your formula, source your product from trusted UK & EU manufacturers, negotiate MOQs & pricing, and design standout packaging — so your launch is smooth, compliant, and stress-free.
Over 80 brands launched successfully · UK/EU/US-ready compliance · Fully vetted manufacturers · £ £ £ Average 20% saved on COGS ·
Over 80 brands launched successfully · UK/EU/US-ready compliance · Fully vetted manufacturers · £ £ £ Average 20% saved on COGS ·
Why Founders Trust CJK Sourcing
“Working with Cat was one of the best decisions we made. We came to her for supplier support and quickly realised she operates on another level. Her knowledge of supplements, formulations, costing, packaging, and manufacturing is exceptional. Her UK network opened doors we didn’t even know existed. She’s incredibly easy to work with, and we’d recommend her to any brand looking to launch, scale, or streamline their supply chain.” Abe, Juici Supplements
“Cat helped me move forward fast. We had an agreed price with a UK manufacturer within a week. Cat’s experience and contacts shaped the final stages of my product, and I wouldn’t hesitate to recommend her to other supplement brand founders” Shaun, Rubeth’s
“Absolutely first class in helping us launch our supplement. Cat went out of her way to find a reliable UK supplier and managed to secure a fantastic price for our products. Couldn’t recommend her enough — genuinely grateful for all the guidance and support she’s given us.” Kevin, Nudge
“Cat was amazing from start to finish. She connected me with a responsive, professional manufacturer and secured the best deal possible. The whole process was smooth and stress-free. If you want to save time and headaches, work with Cat — she’ll get you results.” Pete, Happy Fridays
“Cat has been absolutely incredible in supporting me in my journey as a first time founder. She got me a great price and a low MOQ for my first product. I cannot recommend her enough” S, MagFit
What We Can Make for You
Capsules
High-quality UK/EU/US manufacturing with compliant dosing and premium actives
Powders
Greens, nootropics, pre-workouts, adaptogens — fully formulated & flavour-ready.
Gummies
Pectin or gelatin, low/no sugar, compliant ingredient lists.
Pet Supplements
Chews, liquids, powders & oils formulated by veterinary specialists.
How We Build Your Supplement Brand
A clean, compliant and stress-free launch in four steps.
1 - Formulation
We work with our expert chemists to build a compliant, high-quality formula tailored to your niche, ingredients and claims — no guesswork or risky shortcuts.
2 - Sourcing
We match you with fully vetted UK/EU manufacturers that we have established relationships with. We negotiate MOQs, pricing & lead times for you to make sure you’re getting the best deal.
3 - Packaging
If you don’t already have your design and branding, we create your brand identity, packaging, label, and claims — compliant, visually premium, and ready for retail and Amazon.
4 - Compliance & Final Checks
We handle onboarding with the manufacturer (you get a direct introduction) and artwork approval — keeping your project moving so you avoid delays or expensive mistakes.
Hear From Founders
Build a Compliant, High-Quality Supplement Brand. Fast.
Ready to bring your supplement idea to life? Schedule a free discovery call to explore how CJK Sourcing helps brands launch high-quality, compliant products made in the UK and EU. From formulation to fulfillment, we guide you through every step to make sourcing simple, transparent, and stress-free.
Our Services
End-to-End Supplement
Sourcing
From concept to shelf, we handle every step of your product journey. Whether you’re starting from scratch or refining an existing idea, we help you formulate, source, and manufacture high-quality supplements in the UK, EU, or US — launch-ready.
Cost Optimisation & Local Manufacturing Transfer
Already have a product but want better margins or more control? We help established brands reduce COGs by negotiating with alternative suppliers or transitioning manufacturing to trusted local partners.
Brand in a Box:
Amazon & TikTok Ready
From concept to shelf, we handle every step of your product journey. Whether you’re starting from scratch or refining an existing idea, we help you formulate, source, design and manufacture high-quality supplements in the UK and EU.
Why Work With Us
Flexible, Founder-Friendly Manufacturing
We unlock small-batch MOQs and reliable partners across the UK, EU, and US, so you can test fast, stay agile, and scale on your terms
Smarter Sourcing,
Better Pricing
Access insider terms through our vetted network of manufacturers — helping you maintain healthy margins without cutting quality.
Support That Simplifies the Process
From introductions to communication and sampling, we stay involved throughout your sourcing journey.
FAQs
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Founders who want to launch a human or pet supplement brand using UK, EU, or US suppliers — without inflated agency costs or overseas risk.
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Not at all. If you’re unsure, we can bring in our trusted partner formulator to help shape or refine your product idea.
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Yes — most of our clients are Amazon FBA, TikTok or Shopify sellers. We help you find suppliers who meet quality standards and offer reasonable Minimum Order Quantities, and understand how to support small brands launching in competitive marketplaces.
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Yes, we absolutely source pet supplements. We can source powders, chews and more from trusted suppliers.
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Yes — while supplements are our specialty, we also source across a wide range of categories. That includes cosmetics and skincare, plastics, electronics, and general wellness items. If you’re looking for a trusted partner to handle product development, packaging, and manufacturing in these areas, we can help.
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Absolutely. We sign an NDA with all clients — your idea stays yours.
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Most founders receive shortlisted supplier options within a maximum of 3 weeks of our initial call, depending on the complexity of your product.
Meet the Team
With a background in driving commercial performance and managing complex projects, Cat brings structure, strategy, clarity and serious negotiation skills to the supplement sourcing process — helping founders move from concept to launch with confidence.
Cat K. - Founder / Director
With over 10 years experience in Partnership Management and Customer Success, Vassi maintains strong relationships with trusted manufacturers across Europe — ensuring we continue to expand our network and deliver the best options to our clients.
Vassi A. - EU Director
Julie has over 20 years’ experience as a in operations and administration in major companies and now oversees account coordination for our team. She supports scheduling, communication, and administration to help keep projects on track.
Julie B. - Head of Accounts
MJ is a highly experienced pharmacist and dietary formulation chemist with advanced knowledge of ingredient interactions, dosing strategy, and functional nutraceutical design.
M.J. - Lead Formulator
Contact Us
Interested in working together? Fill out some info and we will be in touch shortly.
We can’t wait to hear from you!