Jason O'Callaghan's

D4 Clinic
Hypnosis

Welcome to the official website for The D4 Clinic, the worlds leading hypnotherapy service for both in clinic (Dublin), online and downloadable hypnotherapy services.

As seen on

The D4 Hypnotherapy Clinic Dublin was Founded over a decade ago by the famed Psychologist, Clinical Hypnotherapist, Author, Journalist and Event Speaker Jason O’Callaghan the clinic has risen from humble beginnings to become one of the major names on the global stage within the field of medical and psychological hypnosis.

We offer face to face hypnotherapy sessions in our Dublin clinic, personalised audio sessions made to order and emailed to your phone and pre-recorded hypnotherapy bundles which can be downloaded to your device.

Jason also performs each year at over 100 social, team building, corporate and mental health events tailored to each event and guaranteed to impress and educate each attendee.

Dublin based Hypnotherapist Jason O'Callaghan holds a Master’s degree from Trinity College in Applied Psychology, a BA (Hon’s) in Psychology plus qualifications in CBT and Counselling. He is also a Certified Instructor with the world’s biggest hypnotherapy organisation, the National Guild of Hypnotherapy (USA). He is the author of the bestselling motivational book “Get the Life You Deserve”.

Would you Like to Get the Life You Deserve?

PLEASE NOTE ALL HYPNOTHERAPY PROGRAMS BOTH IN CLINIC OR ONLINE ARE NON-REFUNDABLE
NOTE: HYPNOTHERAPY IS NOT SUITABLE FOR THOSE WITH EPILEPSY OR FOR THOSE ON SERIOUS PSYCHOTIC MEDICATION
DOWNLOADABLE PRODUCTS ARE ACCESSED VIA THE FREE VERSION OF THE DROPBOX APP. IF YOU CAN’T ACCESS THIS THIS APP. DOWNLOADS WILL NOT WORK ON YOUR DEVICE

Our Very Special Offers

Gastric band Weight Loss

6 Audio Sessions
Printable Instructions
Tutorial Video
+ Free Motivational Book
Instant access
Audio download
€99.00
€49.00
START NOW

FLASH SALE

16 sessions
including gastric band, stop smoking, anxiety & stress reduction, alcohol plus many more

Printable Instructions
Tutorial Video
+ Free Motivational Book
Instant access
Audio download
€1,000
€99.00
START NOW

BUMPER VIP PACKAGE

32 sessions
everything you can imagine from Weight loss to insomnia
including gastric band, stop smoking, anxiety & stress reduction, alcohol
Printable Instructions
Tutorial Video
+ Free Motivational Book
Instant access
Audio download
€3,267
€149.00
START NOW

VIP One-to-One Weight Loss

Special VIP one to one package €299
Work one to one with Jason on this results driven program in clinic.

Call 01 6855511 to book a free phone consultation
€299.00
START NOW
Disclaimer * We provide testimonials to help you gain confidence about how we work and results we achieve – please remember that results may vary from person to person.

Watch Jason on This Morning with Phil and Holly

Bus drive loses over 4 stone with the D4 Clinic. Hear his story

D4 Clinic hypnotist saves grooms honeymoon. Hear his story

Jason explain how hypnotherapy helps anxiety on TV

Watch Jason on Underdogs TV show

The D4 Clinic services are now available face to face in Dublin and online via pre-recorded and Zoom/Skype sessions.
We offer both personalised and pre-recorded clinical hypnotherapy sessions from Ireland to clients around the world for a wide variety of issues.
Most programs can be instantly downloaded or made to order to allow you to do them from the comfort of your own home.

The Dublin clinic is run by Jason O’Callaghan, a consulting psychologist specialising in clinical Hypnotherapy~hypnosis and behavioural science.
Jason is regarded as the leading clinical hypnotherapist in Ireland and mentioned as one of the most successful in the world.

He holds a Master’s degree from Trinity College in Applied Psychology, a BA (Hon’s) in Psychology plus qualifications in CBT and Counselling.
He is also a Certified Instructor with the world’s biggest hypnotherapy organisation, the National Guild of Hypnotherapy (USA).
He is the author of the bestselling motivational book “Get the Life You Deserve”.

Since 2012 The D4 Clinic has become nationally and internationally known as the leading clinical & medical hypnotherapy practice in Ireland

Today, we help clients around Ireland and the world.

SUCCESS STORIES

  • Dear Jason,

    Many thanks for your help at D4 clinic. I have now lost over 3 stone and feel so good. This picture of me is in my first pair of size 12 jeans in over 20 years. It is just amazing how it has worked. I now love my daily walk.Thanks again for all your help. I would have no hesitation in recommending the D4 CLINIC to my friends and colleagues.

    Breda Keating

  • “Hi Jason, how you doing. I am going great since we last spoke, down just 2 stone and finding I feel much better and have a lot more energy each day. Walking daily and listening to my stomach has made a lot of difference. My friend Kelly was recently in with you also after I told here about you and she is nearly down a stone already. So both of us are looking forward to a nice shopping spree soon. Thanks so much”

    FLO - Dublin 6

  • “I found Jason O’Callaghan and the method of hypnosis very beneficial for weight loss. In 3 months, I lost 3 stone and am delighted. The thing I loved most about it was that it seemed to act behind the scenes in my mind and make the whole process quite easy and achievable.”


    SAMMI - Dublin

  • Thanks all. Should have got the hypnosis done years ago. Flight was quite pleasant and hopefully will be the same on way back. Just shows the power of the mind. Thanks to d4 clinic and Jason O’Callaghan for making it happen for me. I would recommend a visit to Jason for anyone suffering a phobia to get it sorted once and for all.

    Ciara - Dublin

  • 46 year old Arlette started our program to lose over 3 stone and get back to her target weight so she could compete for Ireland in the world powerlifting championships this week. Congrats and good luck

    Arlette

  • Mum of two Melissa (39) from Dundalk,Ireland has lost over 4 stone in six months with our VIP gastric band hypnotherapy program.

    Melissa - Dundalk

CHANGE TODAY
Slimming & Weight loss
Weight loss success stories

Irish mum tells how hypnosis helped her to shed a massive five stone in less than a year

After seeing holiday snaps of herself, Dubliner Sharon decided something needed to be done.
This time last year Sharon Gill was feeling miserable. The 47-year-old Drimnagh woman had tried every diet under the sun but nothing seemed to work.

But now after undergoing a course of hypnosis at the D4 Clinic, Sharon has lost almost 5st without even trying.

“I went down to Jason in the clinic and since then I haven’t looked back.”

CONTACT US

Jason O'Callaghan

Jason is a trained psychologist. He holds a honours degree is Psychology and a Masters degree in Applied Psychology from Trinity College Dublin. For his Masters research he was named in the 2012 Trinity College Roll of Honor after he developed a stress reduction program for cancer patients. He is also qualified in Cognitive Behavioural Therapy (CBT) receiving his training from The Institute of Integrative Counselling and Psychotherapy (IICP). He holds qualifications in Counselling from National University of Ireland in Maynooth and is a certified member of the National Guild of Hypnotists (NGH)

Office Main Line: 01 6855511

Email: [email protected]

The clinic operates strictly by appointment only

Disclaimer: Hypnosis is a therapy and like all therapies, results will vary from one person to the next

CONTACT US

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