Sour Diesel Shatter is 90% pure, making it one of the purest forms of tetrahydrocannabinol available. It contains almost exclusively THC. The Sour Diesel Shatter is produced by Phyto Extractions, as a result. There's no intoxicating effect after ingestion. With the addition of natural terpenes, which are also extracted from the cannabis plant. Sour Diesel Shatter by Phyto Extractions, sometimes called Sour D, is an invigorating sativa-dominant strain named after its pungent, diesel-like aroma. This fast-acting strain delivers energizing, dreamy cerebral effects that have pushed Sour Diesel to its legendary status.