Tetrahydrocannabinol acid is chemically similar to THC but is non-psychoactive. Reported benefits include anti-emetic, anti-inflammatory, anti-proliferative, anti-spasmodic, and neuroprotective. Although it is non-psychoactive, it is a fragile chemical and if it is left in heat, light, or air for too long, it can convert into THC and may cause a high.