- Dog anti-slip matNature's Way Sambucus Immune Syrup (4 fl oz) #30050

Sambucus Immune System Formula is a special formulation of the award winning black elderberry extract developed by world-renowned virologist, Dr. Madeleine Mumcuoglu. This pleasant tasting syrup also contains echinacea, propolis, vitamin C and zinc. All are well documented for their health promoting benefits. Sambucus is the world's best selling and most extensively researched black elderberry extract and is produced with a patented process which uniquely isolates the key active constituent of elderberries.