Rosin

Rosin is a solventless cannabis concentrate made by applying heat and pressure to flower, hash, or kief. Unlike BHO or CO2 extracts, rosin uses no chemical solvents, making it a cleaner option. It can be made at home with a hair straightener and parchment paper, or commercially with industrial rosin presses. Rosin retains the full terpene and cannabinoid profile of the source material.