Resin

Resin is the light brown to black coloured, sticky substance that is produced by a cannabis plant's trichomes. This resin contains aromatic oils called terpenes and cannabinoids like CBD and THC, the actual active substances of the cannabis plant. In dry form, resin is also known as 'kief' or 'kif'.

Resin might also refer to the substance of black tar, scraped from used pieces of smoking paraphernalia.