If Blackberries are a favorite treat, you'll enjoy this Blue CBD Crystals Isolate flavor. This flavor is sour, sweet, and slightly bitter, just like fresh blackberries.  Blue CBD Crystals Isolate is a high-end, concentrated CBD extract refined to be pure, potent and free of THC. Our CBD liquids are premium gold quality and test at a 7X higher concentration. Made from Crystals Isolate. Use as: Vapor Liquid or Oral Drops.