Which is better, CBT or ACT?
Written by the clinical team at The Lyceum Clinic. Clinically reviewed by Sanah Younis, Clinical Director, BABCP-accredited (no. 1000792). Published 28 October 2026. Last reviewed 28 October 2026.
Neither is better across the board, and they are not rivals. ACT grew out of CBT as part of its third wave. Classic CBT works on the content of thoughts; ACT works on your relationship to them. For panic, phobias and OCD, classic CBT with exposure has the stronger evidence. For chronic pain, long-term conditions and burnout, ACT often fits better.
When we pivot from CBT to ACT
The signal is cognitive restructuring becoming a mental compulsion. If someone is obsessively arguing with their thoughts, hunting for the perfectly balanced one, more restructuring makes it worse. We tell them: we cannot out-think this any more. We need to change how you relate to the thought, not its content. That is the pivot to ACT, and we use defusion most with intelligent clients who get trapped in loops.
Can you combine ACT and CBT?
Yes, and most of our formulations do. A course might use exposure from classic CBT to break a panic cycle and ACT to handle the residual worry that the panic will return. The point at which treatment turns in ACT is when someone can sit with real emotional pain or physical discomfort and still take a step towards what matters to them. The pain is still there; the suffering ends.
For more detail, read about starting with The Lyceum.
Is ACT like EMDR?
No. EMDR is a trauma treatment that reprocesses stuck memories. ACT is a way of relating to thoughts and feelings in the present. They answer different questions and can sit in the same plan when someone has both a traumatic memory and a struggle with the feelings it leaves behind.
How we choose
By formulation, with you. If the problem is a clear maintaining cycle, classic CBT. If the problem is the fight with the feeling itself, ACT. Usually some of each, in an order that makes sense.