Douglas Laboratories is a trusted American supplement brand with a long history of developing professional-grade nutritional products for healthcare practitioners. Founded in 1955, the company focuses on evidence-based formulations, high-quality ingredients, and rigorous quality assurance processes. Douglas Laboratories products are manufactured in facilities that meet strict pharmaceutical standards.

The brand specializes in vitamins, minerals, probiotics, and specialty formulas designed to support clinical nutrition and therapeutic protocols. Douglas Laboratories emphasizes research, accuracy, and consistency, making its products a preferred choice among medical professionals. With decades of experience, the brand continues to deliver reliable, practitioner-focused nutritional solutions for long-term health support.