Unfortunately, we have no research to support the safety of Delta 11 THC. However, there is no reason to believe it is harmful. Delta 11 shares a similar chemical structure to many other cannabinoids, and so far, no toxic compounds have been found in hemp, even in its concentrated form. Thus, Delta 11 THC is likely to have the same mild, temporary side effects as other forms of THC, including dry mouth, dizziness, dry eyes, fatigue, impaired motor function, and drowsiness.