Source Naturals/Threshold Enterprises, Ltd.
Family Owned
Ira Goldberg, Founder 1982

Source Naturals is a family owned company based in Scotts Valley, California, founded in 1982 by Ira Goldberg. Their formulating approach, which they call Bio-Aligned, is built on the idea that the body's systems work together, so a formula should support several of them at once rather than address one symptom on its own. Wellness Formula followed in 1983 and remains the product the company is best known for, one of the first to bring more than 30 vitamins, minerals and traditional herbs into a single comprehensive immune formula. It is recognized nationwide as the number one selling immune formula in health food and supplement stores, and it has earned a record 21 Vity Awards from Vitamin Retailer magazine. For a great many people, it is how they know the Source Naturals name.

From single nutrients to complex formulations, it's the integrity behind each product combined with the dedication of a family owned and operated brand that has kept us confidently providing Source Naturals for nearly 30 years.