Acceptance and Commitment Therapy (ACT)
Acceptance and Commitment Therapy (ACT) is a form of psychotherapy studied in relation to emotional well-being, including anxiety, depressive symptoms, mood and stress resilience, as well as chronic pain. Its research base is broad and includes pooled analyses, but support varies across outcomes and proposed uses; some conditions are represented by clinical evidence rather than pooled analyses.
ACT is a psychotherapy approach studied in connection with chronic pain and emotional health.
Part of Psychotherapy
Overview
Acceptance and Commitment Therapy (ACT) is a form of psychotherapy studied in relation to emotional well-being, including anxiety, depressive symptoms, mood and stress resilience, as well as chronic pain. Its research base is broad and includes pooled analyses, but support varies across outcomes and proposed uses; some conditions are represented by clinical evidence rather than pooled analyses. The overall picture is therefore best understood outcome by outcome, rather than as evidence that ACT benefits every condition.
Well researched: 241 studies. Last checked Oct 12, 2026.
- 39
- human evidence
- 35
- eligible
- 11
- unclassified
- 3
- animal / null result
Best-evidenced uses
- Chronic Pain ReductionHigh · RCT
- Antidepressant EffectMedium · Meta-analysis
- Mood ImprovementMedium · Meta-analysis
- 241
- Studies
Evidence checked Oct 12, 2026 · newest study 2026
- A
- 16
- B
- 55
- C
- 147
- D
- 23
38 community reports across 3 platforms
Coverage
- Effects
- 44
- Helps with
- 44
- Side effects
- 4
- Interactions
- 6
How to read the evidence
Evidence tier — overall strength of the evidence for the whole compound
- StrongWell established — backed by strong, consistent human research.
- ModerateSome genuine support, but mostly from small or lower-quality studies. Promising, not proven.
- PreliminaryEarly-stage evidence — a promising hypothesis, not an established effect yet.
- LimitedVery limited evidence — treat this as a hypothesis, not proof.
- InsufficientNot enough good evidence to draw conclusions yet.
Certainty — how sure we can be that the effect is real
- Very highVery sure — strong, consistent evidence
- HighFairly sure — consistent evidence from good studies
- MediumModerately sure — new studies could change this
- LowNot sure — little or mixed evidence
- Very lowVery unsure — almost no usable evidence
Source — where the data comes from
- Meta-analysisPooled analysis of many trials — the strongest evidence
- RCTRandomized controlled trial — a strong human study design
- ClinicalA human clinical study
- Reference knowledgeFrom general health-science or pharmacology references, not a study of this exact claim
- Animal researchStudied in animals, not humans
- Community reportsAggregated user reports — anecdotal signal, not evidence
- TheoreticalMechanism-based reasoning, not yet tested
Study grade — quality of each underlying study (A best, D weakest)
- AHigh-quality — strong, consistent human trials
- BGood — solid evidence with some limitations
- CModerate — limited, small, or mixed-quality studies
- DWeak — preliminary, indirect, or animal-only
Confidence — how strongly the sources back a finding
A 0–100 score from study quality and agreement
Most supplement evidence is graded C–D. Read it as preliminary signal, not proof.