"Steviva" is a company that produces sugar substitutes. It has its origins in Los Angeles and is now based in Portland, Oregon. The company's mission is to combat metabolic disease and promote healthier lifestyles. Steviva products are reviewed by customers on various platforms. On Amazon, the "Steviva Blend - 1 lb bag" has an average rating of 4.4 out of 5 stars. Some customers have praised the product as a good substitute sweetener, while others have noted that the cost can be prohibitive. There are also reviews available on the company's own website. However, it's always recommended to do thorough research and consider multiple sources before making a purchase decision.