Nestled among residences and a handful of small businesses, Sampac Enterprises' South San Francisco office has been supplying raw materials since 1988. The small office stocks a range of natural and imported health products, from bee pollen and tea to powdered and herbal extracts like gingko biloba and St. John's Wort. Sampac Enterprises helps customers by processing raw materials on site, blending, drying and milling, as well as providing customized tea-packing services.