What Is DBT? Dialectical Behaviour Therapy Guide

What Is DBT?

Dialectical behaviour therapy (DBT) is a structured, skills-based talking therapy that helps you manage intense emotions, improve your relationships, and build a life that feels worth living. It was developed in the 1980s by American psychologist Marsha Linehan, originally for people with borderline personality disorder (BPD), and it remains one of the most effective treatments for that condition. Since then, it has been adapted for eating disorders, substance abuse, PTSD, chronic depression, and other difficulties where emotional intensity is a central challenge.

The word "dialectical" comes from philosophy and refers to holding two things that seem contradictory as true at the same time. In DBT, the central dialectic is this: you are doing the best you can right now, and you need to change. Acceptance and change, simultaneously. This is not a contradiction. It is the foundation the whole therapy is built on. You do not need to fix yourself before you deserve compassion, and receiving compassion does not mean there is nothing to work on.

DBT is part of the "third wave" of cognitive behavioural therapies, alongside ACT (acceptance and commitment therapy) and compassion-focused therapy (CFT). Like traditional CBT, it is structured, practical, and evidence-based. Unlike traditional CBT, it places equal emphasis on acceptance strategies, drawn from mindfulness and Zen Buddhist practice, alongside change strategies. This balance makes it particularly well-suited to people who have found purely change-focused therapies invalidating or overwhelming.

The table below sets out the main distinctions the post draws between DBT and CBT:

	DBT	CBT
Main emphasis	Balances change with acceptance strategies	Focuses primarily on changing unhelpful thoughts and behaviours
Core skills	Emotional regulation, distress tolerance, interpersonal effectiveness	Cognitive and behavioural change techniques
Format	Typically includes a skills group component	Usually individual therapy
Typically used for	More complex or emotionally intense difficulties	Often first-line for anxiety and depression

How DBT Works

The four skill modules

DBT teaches skills across four core areas. These are not abstract concepts. They are practical techniques you learn, practise, and apply to real situations in your life.

Mindfulness is the foundation of all the other skills. In DBT, mindfulness means learning to observe your thoughts, feelings, and sensations without immediately reacting to them. It is broken down into "what" skills (observe, describe, participate) and "how" skills (non-judgmentally, one-mindfully, effectively). The aim is not to empty your mind or achieve calm. It is to develop the ability to notice what is happening inside you so you can choose how to respond rather than being driven by automatic reactions.

Distress tolerance teaches you how to survive emotional crises without making things worse. This is not about solving the problem or making the pain go away. It is about getting through the moment without resorting to behaviours that create bigger problems. Techniques include distraction strategies (the TIPP skills: Temperature, Intense exercise, Paced breathing, Progressive muscle relaxation), self-soothing through the five senses, and radical acceptance, which means acknowledging reality as it is right now without fighting it. Radical acceptance does not mean approval. It means stopping the war with what is already true so you can decide what to do next.

Emotion regulation helps you understand your emotions, reduce your vulnerability to overwhelming emotional reactions, and change emotions when you want to. This module covers identifying and labelling emotions accurately, understanding what emotions do (they are not random; they have functions), reducing emotional vulnerability through basic self-care (the ABC PLEASE skills), and acting opposite to the emotion's urge when the emotion does not fit the situation. If shame tells you to hide, and hiding is making things worse, opposite action means deliberately engaging with people.

Interpersonal effectiveness is about asking for what you need, saying no, and maintaining relationships, all at the same time. DBT uses structured frameworks for this. DEAR MAN helps you ask for what you want clearly and effectively. GIVE helps you maintain the relationship while doing so. FAST helps you maintain your self-respect. These are practical scripts, not abstract advice, and they are particularly useful for people who tend to either avoid conflict entirely or escalate it.

Full DBT: the four components

Standard, comprehensive DBT is not just individual therapy. It has four components that work together:

Individual therapy (weekly, 50 to 60 minutes) is where you and your therapist work on applying the skills to your specific life situations. Sessions typically focus on the most urgent issues first, using a hierarchy: life-threatening behaviours are addressed before therapy-interfering behaviours, which are addressed before quality-of-life issues. Your therapist helps you analyse specific situations using "chain analysis" (what led up to a behaviour, step by step) and "solution analysis" (what you could do differently next time).

Skills group (weekly, approximately 2 to 2.5 hours) is where you learn the four skill modules in a structured, classroom-like format. A skills group is not group therapy in the traditional sense. You are not expected to share personal details or process emotions in the group. You are there to learn skills, practise them through exercises, and review your homework. The full skills curriculum cycles through all four modules over approximately 24 weeks.

Phone coaching (between sessions, brief) gives you access to your therapist for real-time guidance when you are struggling to apply skills in the moment. This is not a therapy session on the phone. It is a short, focused call where your therapist helps you identify which skill to use right now. Phone coaching is an essential part of DBT because crises do not wait for your next session.

Therapist consultation team (weekly) is the component you do not see as a client, but it matters. DBT therapists meet weekly to support each other in delivering effective treatment. Working with intense emotional distress is demanding, and the consultation team helps therapists stay motivated, competent, and compassionate. This is one of the reasons DBT maintains its quality when delivered by properly trained teams.

DBT skills training only

Not everyone needs or can access full comprehensive DBT. Some therapists offer DBT skills training as a standalone component, either individually or in a group. This focuses on teaching the four skill modules without the full programme structure. Skills-only DBT can be useful for people who want practical emotional management tools but whose difficulties do not require the intensity of the full programme. It is worth knowing that the evidence base for skills-only DBT is less robust than for the comprehensive model.

What the Evidence Says

DBT has one of the strongest evidence bases of any therapy for its primary population, and growing evidence for broader applications.

Linehan et al. (2006) published a landmark randomised controlled trial comparing comprehensive DBT with treatment by community experts for women with borderline personality disorder and recent suicidal or self-harming behaviour. DBT was significantly better at reducing suicide attempts (by half), self-harm, psychiatric hospitalisations, and emergency department visits. Participants in the DBT group were also more likely to stay in treatment. This study was particularly significant because it compared DBT not to a waiting list but to treatment by experienced clinicians, making the results more meaningful.

NICE (National Institute for Health and Care Excellence) recommends DBT as a treatment option for borderline personality disorder. The NICE guideline (CG78) acknowledges DBT's evidence base for reducing self-harm and improving emotional regulation. While NICE does not designate DBT as the sole recommended treatment for BPD, it is one of the approaches specifically named in the guideline.

Self-harm reduction is one of DBT's most consistent findings across studies. Multiple trials and meta-analyses have found that DBT significantly reduces the frequency and medical severity of self-harm. Given that effective treatments for self-harm are scarce, this is a clinically important contribution.

Beyond BPD, the evidence is expanding. Adapted versions of DBT have shown promising results for eating disorders (particularly binge eating and bulimia, where emotional dysregulation drives the eating behaviour), substance use disorders (where DBT skills help people manage cravings and emotional triggers), and PTSD (where a combination of DBT skills and trauma processing has been tested).

The evidence is clear for BPD and self-harm. For other conditions, the evidence is promising but less extensive. If you are considering DBT for a condition other than BPD, it is worth discussing with your therapist how well the evidence applies to your specific situation.

What DBT Is Good For

DBT has demonstrated effectiveness across several areas. Here is where the evidence and clinical experience are strongest:

• Borderline personality disorder (BPD). DBT was designed for BPD and has its strongest evidence here. It reduces self-harm, suicidal behaviour, emotional instability, and interpersonal difficulties. It is one of the few therapies with robust evidence for this condition.
• Self-harm. DBT is one of the most effective treatments available for reducing self-harming behaviour, regardless of whether a BPD diagnosis is present.
• Emotional intensity. If you experience emotions as overwhelming, rapidly shifting, or difficult to control, DBT's skills-based approach is specifically designed to help you manage this.
• Eating disorders. Adapted DBT has shown good results for binge eating disorder and bulimia nervosa, particularly when emotional dysregulation (difficulty managing emotions) drives the eating behaviour.
• Substance abuse. DBT helps people manage the intense emotions and interpersonal difficulties that often underlie substance use. The distress tolerance skills are particularly relevant for managing cravings.
• Chronic suicidal thoughts. DBT directly addresses suicidal thinking and behaviour through its crisis hierarchy and distress tolerance skills.
• PTSD. DBT combined with prolonged exposure (DBT-PE) is an emerging treatment for people with PTSD who also have significant emotional dysregulation.
• Chronic depression. When depression is accompanied by emotional intensity, interpersonal difficulties, or self-destructive patterns, DBT can be more effective than approaches that focus solely on mood.

Limitations and Alternatives

DBT is a well-supported therapy, but it has genuine limitations.

Full comprehensive DBT is intensive. It involves weekly individual therapy plus a weekly skills group (2 to 2.5 hours), plus homework, plus phone coaching as needed. That is a significant time commitment. For some people, this intensity is exactly what they need. For others, it is not feasible given work, family, or other commitments.

Skills-only DBT has a weaker evidence base. Many people access DBT skills training without the full comprehensive programme, and it can be useful. But the evidence is strongest for the complete model, and it is worth being honest that stripping out components may reduce effectiveness.

Fewer therapists are comprehensively trained. Properly trained DBT therapists have completed intensive training programmes and ideally work within a consultation team. This is a higher bar than most therapy training, which means there are fewer fully trained DBT therapists available, particularly outside of NHS specialist services or major cities.

DBT may be more than you need. If your difficulties are relatively focused, for example, anxiety about a specific situation or mild to moderate depression, a shorter-term therapy like CBT (6 to 20 sessions) may be sufficient. DBT was designed for more complex presentations where emotional dysregulation is a central feature.

If your difficulties are rooted in deep childhood patterns rather than emotional regulation, schema therapy may offer a more targeted approach to understanding and changing those patterns. If you are drawn to DBT's acceptance-based elements but your main difficulty is feeling stuck or disconnected from what matters, ACT focuses specifically on values-based living. If self-criticism is a central issue, CFT (compassion-focused therapy) addresses this directly.

For a broader view of what is available, our guide to therapy covers the full range of approaches.

What to Expect

Session length: Individual sessions are typically 50 to 60 minutes. Skills groups run approximately 2 to 2.5 hours.

Frequency: In comprehensive DBT, individual therapy and skills group are both weekly. Skills-only programmes vary but are usually weekly for the duration of the curriculum.

Duration: A full skills group curriculum cycles through all four modules in approximately 24 weeks. Many programmes repeat the cycle, running for a year in total. Individual therapy alongside the skills group typically continues for at least a year, sometimes longer. Skills-only programmes may be shorter.

Cost: Private DBT sessions typically cost £80 to £100 per session for individual therapy. Skills groups vary in price. Given the weekly individual plus group format, the total weekly and overall cost of comprehensive DBT is higher than most single-session therapies. It is worth discussing costs openly with your therapist before committing.

NHS availability: Some NHS services offer DBT, particularly specialist personality disorder services and community mental health teams. Availability varies significantly by area, and waiting times can be long. Some NHS services offer skills groups without individual DBT.

Homework: DBT involves regular practice between sessions. You will be asked to complete diary cards (tracking emotions, urges, and skills used each day) and to practise specific skills from the module you are currently covering. This between-session work is a core part of the therapy, not an optional extra.

How Aligned Can Help

If DBT sounds like it might be a good fit for you, Ally, our matching agent can help you find a therapist trained in this approach. The matching conversation takes around 10 minutes, and our team will find someone who fits your needs, budget, and location. The service is completely free.

Frequently Asked Questions

Do I need a BPD diagnosis to benefit from DBT?

No. While DBT was developed for borderline personality disorder, it is now used for a range of difficulties involving emotional intensity, self-harm, relationship problems, and impulsive behaviour. You do not need a formal diagnosis to benefit from DBT skills.

What is the difference between DBT and CBT?

Both are structured, evidence-based therapies, but they differ in emphasis. CBT focuses primarily on changing unhelpful thoughts and behaviours. DBT balances change strategies with acceptance strategies and places much more emphasis on emotional regulation, distress tolerance, and interpersonal skills. DBT also typically includes a skills group component that CBT does not. In practice, DBT tends to be used for more complex or emotionally intense difficulties, while CBT is often the first-line approach for anxiety and depression.

Can I just do the skills group without individual DBT?

Yes, many therapists and programmes offer skills-only DBT. This can be a practical option if you want to learn the skills but your difficulties do not require the full comprehensive programme. It is worth knowing that the strongest evidence is for the complete model, so if your difficulties are severe or long-standing, the full programme may be more effective.

Is DBT available on the NHS?

Some NHS services offer DBT, particularly specialist services for personality disorders. Availability varies significantly by area. Your GP can refer you, or you can ask your local community mental health team. Waiting times are often several months, and some services offer skills groups only rather than the full comprehensive model.

How is DBT different from ACT?

Both DBT and ACT are "third wave" therapies that balance acceptance and change. DBT is more structured and skills-focused, with specific techniques for crisis management, emotional regulation, and interpersonal effectiveness. ACT is more values-focused, helping you build a meaningful life while changing your relationship with difficult thoughts and feelings. DBT tends to be used for more severe emotional dysregulation, while ACT is often a good fit for anxiety, depression, chronic pain, and feeling stuck.

What if I find the group component difficult?

Many people feel nervous about the skills group, and that is completely understandable. It is worth knowing that a DBT skills group is not group therapy in the traditional sense. You are not expected to share your personal struggles or process emotions in front of others. The format is closer to a class: a facilitator teaches skills, you practise them through structured exercises, and you review homework. If the group component feels like a barrier, discuss it with your therapist. Some offer individual skills training as an alternative, though the group format has benefits, including learning from how others apply the skills.