
Supplements that are backed by studies and proven with results.
Shop NowUsed By Professionals 💪🏻
Owned By A Professional Nutritionist 😎
High Quality Ingredients 🍒
3rd Party Tested 🔬
Used By Professionals 💪🏻
Owned By A Professional Nutritionist 😎
High Quality Ingredients 🍒
3rd Party Tested 🔬
Used By Professionals 💪🏻
Owned By A Professional Nutritionist 😎
High Quality Ingredients 🍒
3rd Party Tested 🔬
Used By Professionals 💪🏻
Owned By A Professional Nutritionist 😎
High Quality Ingredients 🍒
3rd Party Tested 🔬
Used By Professionals 💪🏻
Owned By A Professional Nutritionist 😎
High Quality Ingredients 🍒
3rd Party Tested 🔬
Used By Professionals 💪🏻
Owned By A Professional Nutritionist 😎
High Quality Ingredients 🍒
3rd Party Tested 🔬
Used By Professionals 💪🏻
Owned By A Professional Nutritionist 😎
High Quality Ingredients 🍒
3rd Party Tested 🔬
Used By Professionals 💪🏻
Owned By A Professional Nutritionist 😎
High Quality Ingredients 🍒
3rd Party Tested 🔬
Used By Professionals 💪🏻
Owned By A Professional Nutritionist 😎
High Quality Ingredients 🍒
3rd Party Tested 🔬
Used By Professionals 💪🏻
Owned By A Professional Nutritionist 😎
High Quality Ingredients 🍒
3rd Party Tested 🔬
Our Best Sellers
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Grow Gummies
Regular price £24.19Regular price £24.19 Sale priceUnit price per£0.00 -
Super Shilajit Gummies
Regular price £24.19Regular price £24.19 Sale priceUnit price per£0.00 -
SAVE 27%
The Invincible Stack
Regular price £79.99Regular price £79.99 Sale priceUnit price per£109.9527%
Bundle Deals
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SAVE 27%
The Invincible Stack
Regular price £79.99Regular price £79.99 Sale priceUnit price per£109.9527% -
SAVE 16%
Ozem Appetite Suppressant Stack
Regular price £49.99Regular price £49.99 Sale priceUnit price per£59.9816% -
SAVE 37%
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SAVE 29%

3rd Party Testing
At J Clarke Sports Nutrition, we believe third-party testing is crucial to ensure our supplements are safe, meet the highest standards, and give you total peace of mind.
By committing to rigorous third-party testing, we aim to show our dedication to delivering premium-quality products you can trust – every time. Check out some of our certificates below 👇

Shilajit Resin
At J Clarke Sports Nutrition, we pride ourselves on offering products that are both potent and pure. Our Shilajit Resin has been independently tested by Verifier Labs, and here’s what they found:
✅ Rich in Fulvic Acid – Contains a powerful 49.29% fulvic acid content, a key active compound in high-quality Shilajit, known for its health-supporting properties.
✅ Safe from Heavy Metals – Tested for harmful substances like arsenic, lead, and cadmium.
Arsenic: Just 43.6 µg/kg, well within safe limits.
Lead & Cadmium: Below detectable levels (under the lab's limit of quantification).
🔬 Lab-tested. Proven pure. Trusted by athletes and wellness seekers alike.
With J Clarke Sports Nutrition, you’re getting clean, effective, and responsibly sourced supplements – every single time.

Shilajit Gummies
At J Clarke Sports Nutrition, we’re committed to quality that’s proven — not just promised. Our Super Shilajit Gummies have been tested by Verifier Labs Ltd, and the results confirm exactly what we stand for:
✅ Meets or Exceeds Expected Potency – Independent testing confirms that each gummy contains at least the stated 250mg of pure Shilajit, with the fulvic acid content matching or surpassing expected levels.
✅ Tested via Titration Method – This high-confidence testing method confirmed the presence of high-quality, active Shilajit compounds, reinforcing the strength and effectiveness of every serving.
🔬 Third-party tested for purity and performance.
With J Clarke Sports Nutrition, you're not just getting supplements — you're getting results, backed by science.

Shilajit Capsules
Our Shilajit Capsules have been independently tested by Verifier Labs Ltd, and here’s what the full lab report confirmed:
✅ Pure and Potent Fulvic Acid – Analysis via titration verified that each serving meets or surpasses the 250 mg Shilajit per capsule claimed on the label, meaning you get the full power you expect.
✅ Reliable High-Quality Testing – The CoA (Certificate of Analysis, dated 05 June 2025) affirms that the fulvic acid levels measured are consistent with a high-purity Shilajit extract, ensuring top-tier quality.
🔬 Assurance Through Independent Validation – By specifically testing for active fulvic content, Verifier Labs provides high confidence that our Shilajit capsules are both authentic and effective.
With J Clarke Sports Nutrition, you're not just taking a supplement—you're taking one that’s fairly tested, accurately dosed, and built to perform.

OZEM + Capsules
Our Ozem+ Capsules were independently tested by Verifier Labs Ltd, and the results confirm our commitment to delivering what we promise:
✅ Clinically-Dosed Berberine – Testing confirmed 207mg of Berberine HCl per serving (2 capsules), slightly exceeding the label claim of 200mg. This ensures you're getting a full, effective dose with every serving.
✅ High-Precision Testing – Verified using HPLC (High Performance Liquid Chromatography), one of the most accurate testing methods available for ingredient purity and concentration.
🔬 Backed by Third-Party Analysis – Certified on 7th July 2025, this report confirms the presence and strength of genuine Berberine — a key compound in Ozem+ designed to support blood sugar control, metabolism, and appetite regulation.
With J Clarke Sports Nutrition, you’re not just getting great formulas — you’re getting lab-tested, high-potency products you can trust.

Creatine Gummies
At J Clarke Sports Nutrition, we’re committed to transparency and quality. Our Creatine Gummies have been rigorously tested by Verifier Labs, and the results speak for themselves:
✅ Precise Creatine Content – Each gummy delivers 1.519g of creatine monohydrate, ensuring that a 2-gummy serving provides 3.04g, slightly exceeding the advertised dosage. You’re getting exactly what you expect!
✅ Heavy Metal Safety – Our gummies were tested for lead using advanced ICP-MS analysis, and the results came back below the limit of quantification (LOQ). That means they meet even the strictest safety standards, including California’s Proposition 65.
🔬 Third-party tested for your peace of mind.
With J Clarke Sports Nutrition, you can trust that every serving is both effective and safe.

Super Size Muscle Gummies
Our Super Size Gummies have been rigorously tested by Verifier Labs to verify potency and safety — here’s what the results showed:
✅ High Maca Concentration – Each gummy delivers a strong dose of Maca Root Extract, known for its potential benefits in performance, vitality, and endurance. The lab confirmed the presence and quality of the active ingredient, giving you confidence in every serving.
✅ Tested for Lead – Lead levels were measured and found to be below the limit of quantification (LOQ), meaning the product passes even the strictest safety standards.
🔬 Third-party tested for potency and purity.
With J Clarke Sports Nutrition, you're not just fuelling your body — you're fuelling it with verified, clean, and effective ingredients.

Sea Moss Gummies
Our Sea Moss Gummies have undergone rigorous testing by Verifier Labs Ltd, and the results affirm our dedication to quality:
✅ Authentic Irish Moss – The gummies tested positive for the botanical identity of Irish Moss (Chondrus crispus), confirming that the product contains the genuine ingredient as stated on the packaging.
✅ Tested by Accredited Laboratory – The analysis was conducted using High-Performance Thin-Layer Chromatography (HPTLC) at an ISO 17025 accredited laboratory, ensuring precise and reliable results.
🔬 Third-party tested for your peace of mind.
With J Clarke Sports Nutrition, you can trust that our Sea Moss Gummies are crafted with authentic ingredients, supporting your health and wellness goals.

Grow Gummies
Our Grow Gummies have undergone rigorous testing by Verifier Labs Ltd, and the results affirm our dedication to quality:
✅ Authentic Tribulus Terrestris – The gummies tested positive for the botanical identity of Tribulus Terrestris, confirming that the product contains the genuine ingredient as stated on the packaging.
✅ Tested by Accredited Laboratory – The analysis was conducted using High-Performance Thin-Layer Chromatography (HPTLC) at an ISO 17025 accredited laboratory, ensuring precise and reliable results.
🔬 Third-party tested for your peace of mind.
With J Clarke Sports Nutrition, you can trust that our Grow Gummies are crafted with authentic ingredients, supporting your health and wellness goals.
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