Chem- Our Premium Dry sift rosin is made from cured plants, separating the trichome heads, then pressing the "keef" at low temperatures into rosin. 91 Chem #12 is a 50/50 HYBRID, that contains a wide variety of flavors including citrus, pine, and diesel. This cultivar is best suited for nighttime use. Expect an uplifting boost in energy, while also experiencing a sense of heavy relaxation towards the end of the effect. Top Three Terpenes: 1. Beta-Myrcene - anti-inflammatory properties, pain relief, and a sedative effect on the system. 2. D-Limonene - relieve stress. uplifting. 3. Linalool - help promote relaxation and enhance sleep quality.