Natural. Scientifically proven. Sustainable.

The Difference of Duval

Every formula we develop is based on genuine expertise and a deep respect for animal health. Because your horse deserves more than just a supplement—it deserves a solution that truly works.

About Duval Products

Duval Products BV specializes in and manufactures natural supplements for horses and dogs. As a certified company, we guarantee full traceability of ingredients and use organic raw materials whenever possible. By strictly adhering to HACCP standards, we ensure exceptional quality control and product consistency throughout every stage of production.

Nature as basis. Well-being and performance as result.

We believe the best way to support a horse's well-being is a natural, yet scientifically sound approach. By combining veterinary expertise with the power of plants, minerals, algae, and other natural ingredients, we create supplements that harmonize with the horse's physiology.

Naturopathy is not a matter of “belief,” but a practice that is increasingly supported by research.

Our supplements are developed in collaboration with riders and tested on real horses in everyday practice. This way, we know for sure that what we make truly works and makes a visible difference.

Commitment to Sustainability

We take our responsibility for people, animals, and the planet seriously. Corporate social responsibility is a core value.

Where possible, our raw materials are organic.

All suppliers are carefully selected based on quality and sustainability.

Our packaging is recyclable or made from recycled materials.

1/2

Multifunctional formulas that work

We focus on comprehensive, multifunctional products designed to address multiple factors simultaneously. While single-ingredient supplements often treat only one symptom, our formulas support the bigger picture. Our promise is that every supplement is truly comprehensive.

2/2

Uncompromising product quality

Quality isn't just a promise, it's the foundation of everything we do.

Our formulas are based on the latest scientific insights and practical experience. Only the finest raw materials are used in our products, and we strictly adhere to HACCP and GMP+ guidelines to ensure exceptional standards.

our mission and vision

Driven by nature. Guided by science.

Our mission is to improve the health and quality of life of animals through innovation and the purest natural ingredients. Unsatisfied with the industry standard, we began developing our own line of supplements based on marine ingredients. By combining science and nature, we strive to create products that truly support the long-term well-being and vitality of animals.

We incorporate the highest concentrations of active ingredients into every formula and avoid unnecessary fillers, sugars, artificial colors, or flavors. We believe that "prevention is better than cure." Performance horses and horses subjected to heavier physical demands wear out faster. Targeted, preventative supplements can help minimize these risks while supporting continued health.

How It All Began

Yerseke 1920

In 1920, my grandfather started a family business in the harbor of Yerseke. Even then, all products were environmentally friendly because nature itself creates them. Nature itself provides a constant supply of shells and seaweed. Together with my father, he found all sorts of wonderful uses for the shells, including animal feed. In 1973, my father started a company that produced animal supplements using various marine ingredients, such as calcium from oyster shells, as well as various clays and seaweed.

Growing up with horses

My name is Nathalie van der Endt—an active rider from Yerseke with a big heart for horses. Horses and the sea have been part of my life from a young age. I grew up among the animals at my parents' riding school, where they shared their passion for equestrian sports with me. My father founded Endy BV in 1973, a company specializing in natural animal supplements based on marine ingredients. This background only strengthened my fascination with the power of nature and what it can do for us and our horses.

A passion for horses and nutrition

Growing up with horses is something magical. Alongside my love of horseback riding, I developed a keen interest in how nutrition and supplements affect the body. Naturopathy quickly became my passion. I devoured books, took courses, and began researching equine supplements during my studies at Avans University of Applied Sciences in Breda, where my two passions converged: horses and natural health.

From Graduation to Innovation

While writing my thesis, I discovered a problem: many supplements on the market were loaded with cheap fillers, sugar, or low-quality ingredients, yet sold at inflated prices. As a horse lover, I felt misled and knew there was a better way. With the foundation and expertise of Endy BV, the idea for my own line of natural, high-quality supplements at a fair price was born.

Inspired by the Sea

I've always admired everything that lives and grows in the sea. The natural wealth and the exceptionally beautiful mineral complex it contains became the common thread throughout the entire product range—a perfect blend of passion for horseback riding and the power of nature.

The beginning

Family & Horses

Discovering the Goal

Turning point

The Influence of Nature

Our Partners

Looking for something made especially for your horse?

If you can't find exactly what you're looking for in our store, we can create a custom supplement tailored to your horse's specific needs. Thanks to our in-house development and production, we can work closely with you to develop the perfect formula: precise, natural, and made with only the finest ingredients.

Request your own mix