Robertet's Castoreum Hyperessence 50% TEC is a particularly clean castoreum absolute. Formerly under the Charabot brand (now owned by Robertet), Castoreum Hyperessence tones down the rough edges of the material and enhances the sweet raspberry facets, making for a castoreum absolute of the finest quality and a product much easier to use than most. Castoreum Hyperessence is solid when pure so we offer it here at a 50% dilution in completely natural Triethyl Citrate, an odourless isolate from citrus. Use Castoreum Hyperessence anywhere you would normally use Castoreum absolute. We also offer an intense Castoreum “Signature” Absolute from Floral Concept which has more of a wild character and the elegant and 3% Siberian Castoreum Tincture, the softest of the group.