Gorilla Glue #4 is a very potent strain of cannabis. The genetic makeup is a mix of Chocolate Diesel with Sour Dub and Chem Sister. The smell of diesel is strong but the taste is similar to coffee that has gone stale. The smell is extremely strong, one of the strongest strains. The THC level is about 25%. When it is ready to be harvested, the leaves look like they have snow or salt on them. They offer a high yield of THC. Gorilla Glue #4 is a hybrid strain. This type of cannabis is often used by those that feel a need to self-medicate. It can help with reducing chronic pain such as arthritis and chronic back pain. It is also used for the treatment of Obsessive Compulsive Disorder (OCD).