Cyco Coco Pearl with Mycorrhizae is a mixture of coco peat and perlite. Our product combination is able to display the RHP stamp of quality as both the coco and perlite are sourced in Europe, which are both RHP certified. The combination of the two RHP certified products gives us a superior blend for serious growers. Cyco Coco Pearl with Mycorrhizae has high water absorption and essential air ratio. It is pre-buffered and pH stabilized.