Supplements and apparel designed for athletes – by athletes

We are proud of our journey so far and look forward to continued growth, staying true to our mission and values. Our mission: Building trust through quality

For your sports results

Lean Bulls Labs is a Polish supplement brand created by Natalia Jasińska and Łukasz Klugiewicz. People who count calories, sets and reps — and who know that supplementation for active individuals requires well-thought-out formulas, not just colorful labels.

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Our Philosophy

What makes us stand out

1

Standardized extracts

All plant and mushroom extracts in our products have a defined standardization for active ingredient content. No random powders — only defined concentrations of withanolides, salidrosides, bacosides, polysaccharides and other markers.

2

Effective portions

We don't play games with trace amounts 'just for the label'. If we list an ingredient, it's included at a dose that actually works. For example: 300 mg of magnesium bisglycinate per serving, 250 mg of citicoline, 500 mg of betaine HCl.

3

Bioavailable forms

Magnesium — bisglycinate, not oxide. Vitamin B6 — pyridoxal-5-phosphate, the active form. Zinc — bisglycinate. The litmus test of supplement quality.

4

Thoughtful formulas

Each product has a defined role: Focus & Digest — first half of the day NeuroRecovery — evening The Only Right Magnesium — daily foundation. The products complement each other instead of duplicating ingredients.

5

Manufactured in Poland

Our products are manufactured by a Polish supplement producer operating under the strict quality standards of GMP, HACCP and ISO 22000.

6

HPMC capsules

We use vegan capsules made from hydroxypropyl methylcellulose. No gelatin, no dyes, no unnecessary additives. Just the ingredients listed on the label.

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Our Team

Meet our team

Everything you see here, we built ourselves — together, bringing each other's ideas to life.

Łukasz Klugiewicz

Founder

Natalia Jasinska

Founder and CEO

Lean Bulls Labs in Numbers

Our Achievements in Numbers

See what we've achieved so far
900+

Happy customers

Over 900 customers looking for effective supplements and sports apparel have trusted us.
98%

Customer Satisfaction Index

Our priority is to understand and meet the needs of each client.
100%

Own brand

We create our own products based on proven research and the highest quality ingredients.
2

Directions of our offer

We offer a diverse range of dietary supplements and sports apparel.
1-3 days

Fast and reliable delivery

We make sure your order arrives quickly and in perfect condition.

Strong partnerships

See who we work with
Certified production facility

Discover the certificates of the facility that manufactures our supplements

We manufacture supplements in Poland, focusing on the highest quality, purity, safety, and accuracy of declared ingredient content.

ISO 22000

Every batch tested in an independent laboratory. Control from raw material to finished product. If we do something, we do it properly. You can download the test results for each batch from the product page.
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GMP Certificate

(Good Manufacturing Practice) is a document confirming that the production processes in a given company comply with rigorous quality and safety standards. It guarantees that products are manufactured under hygienic conditions and strictly controlled from the raw material stage to the finished product.

HACCP

(Hazard Analysis and Critical Control Point) is a document confirming that a food producer, including dietary supplements, has implemented and applies a system for hazard analysis and critical control points. Its main task is to ensure that the product is safe for the consumer's health.
ISO 22000
GMP Certificate
HACCP

Frequently Asked Questions

Find answers to frequently asked questions about our products and services.

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