Dietary Supplement. Broad Spectrum Support for Immune Cell Function*. Organically Grown Mushrooms. Rapid Release & Delivery. BioProtect® Packaging System. Organic Mushrooms for Health RM-10® Ultra contains a proprietary blend of organically grown, tonic mushrooms that have been carefully selected and cultivated to maintain their genetic integrity. Mushrooms have been used all over the world for their general health benefits for many centuries. Broad Spectrum Support RM-10® Ultra is the ultimate immune h.