Thompson Vitamin C Powder

To ensure quality and purity, Thompson products were manufactured in-house at the company’s manufacturing facilities in Crenshaw, California. In keeping with Thompson’s philosophy that supplements should be as clean, pure and as natural as possible, the Thompson brand was one of the first to abandon the use of coal tar and synthetic dyes that were standard in the industry in the early years.

For more than 80 years, shoppers have known and trusted the Thompson brand—one of the most established names in the natural products industry.