Therefore, in understanding Delta 9 THC vs THCA, it is important to note that these two compounds have a unique difference in that they are used in different ways and have different effects. THCA stands for Tetrahydrocannabinolic Acid and is a non-psychoactive compound that is present in cannabis plants in their raw form. It does not have a “high” effect and cannot be used for that reason. However, it is decarboxylated to delta 9 thc vs thca, which is commonly known and used for its psychoactive properties and benefits in relaxing and lifting one’s mood and providing relief.