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Every single batch · Zero exceptions

Every Batch 3rd Party Tested

Most supplement brands never independently verify what they sell. We do the opposite. Every batch is sent to an accredited third-party laboratory before it reaches your door — and every Certificate of Analysis is published openly for anyone to read.

01
Ingredients sourced to specification
Every raw ingredient is verified for identity, purity and potency. If it doesn't meet specification, it doesn't go into production.
02
Formulated by a qualified nutritionist
Every JC supplement is formulated by John Clarke — a professional nutritionist. Clinically referenced doses, not marketing numbers.
03
Finished batch tested independently
A sample from every finished batch is sent to Verifier Labs — an accredited third-party laboratory with no commercial ties to JC Supplements.
04
Certificate published before shipping
Every Certificate of Analysis is published online, free to view. What's on the label is what's in the bottle — verified, not just claimed.
Independently tested by
Verifier Labs Ltd
V
Verifier Labs Ltd
Independent Testing
Accredited
Laboratory
Certificate of Analysis
Suppressa Capsules
Lot No.
CLA006
Certificate Date
11 Sep 2025
Assay
Berberine HCl by HPLC
Label Claim
200 mg
VS
Lab Result
200 mg
✓ 100% of label claim — exact match to specification
PASS
✓ Verified — Sajida Sayed, Verifier Labs Ltd
Lab Commentary
"We found this product to contain 200mg of Berberine HCl — which is, to the mg, what is expected as per the product label. This product meets label expectations."
— Verifier Labs Ltd · Document ID: C2509110639

Check Our 3rd Party Tested & Approved Products

    The JC Difference

    Why Choose JC Supplements?

    Not all supplements are created equal. Here's what makes JC Supplements different — and why 10,000+ customers keep coming back.

    10,000+ Happy Customers
    Trusted by thousands of real customers across the UK — with verified reviews to prove it.
    3rd Party Tested
    Every batch independently verified by Verifier Labs. What's on the label is what's in the bottle — full stop.
    Owned By A Nutritionist
    Founded and formulated by John Clarke — a qualified professional nutritionist. Science first, always.
    Proven Results
    Real before-and-after transformations from real customers. Results that speak louder than any marketing claim.
    Backed By Science
    Every formula is built on peer-reviewed research. Clinical doses — not the token amounts used to cut costs.
    Natural Ingredients
    No synthetic fillers, no shortcuts. Only high-quality natural ingredients selected for efficacy and purity.
    Used By Professionals
    Trusted by personal trainers, coaches and health professionals who recommend JC to their own clients.
    High Quality Ingredients
    Premium-grade raw materials sourced to strict specification — because ingredient quality determines your results.
    10,000+
    Happy Customers
    16+
    Products 3rd Party Tested
    ★ 4.8
    Average Customer Rating
    100%
    Natural Ingredients
    1
    Qualified Nutritionist Founder

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