Diamine Oxidase (DAO) - Histamine Degrading Enzyme

Diamine Oxidase (DAO) - Histamine Degrading Enzyme

Regular price £39.00 GBP
Regular price Sale price £39.00 GBP
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  • Created by Scientists
  • Powerful Formulations
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Diamine oxidase (DAO enzyme) is a histamine degrading enzyme that is commonly low in people with histamine intolerance, either through hindered production or genetic deficiency.

DAO is responsible for breaking down histamine in the body. If DAO levels are low, histamine will not be properly degraded, causing levels of histamine in the body to become too high and produce histamine intolerance symptoms.

DAO specifically targets histamine ingested through food or environmental exposures, therefore insufficient levels of DAO can result in reactions to histamine-containing foods, products and even contribute to seasonal allergies.

Supplementing with DAO has shown to assist with breaking down histamine in the body to reduce overall histamine levels. This process can improve symptoms for those experiencing histamine intolerance related issues.

This supplement is manufactured in the USA using only the highest quality ingredients. It is tested for potency and purity to guarantee quality and efficacy.


    Supplement Info

    Suggested Use:

    Take 2 capsules 15 minutes before consuming meals containing histamine, or as directed by a healthcare practitioner.

    Store tightly sealed in a cool, dry place.

     Dietary considerations:

    • Gluten Free
    • Non-GMO
    • Wheat Free
    • Dairy / Milk Free
    • Soy Free
    • Yeast Free
    • Sugar Free
    • Hydrogenated Oil Free
    • Corn Free
    • Free of Artificial Colors / Flavors


    We offer free 2-5 day standard shipping on all USA orders over $40.

    Expedited shipping also available.

    Other areas from 5-15 business days, depending on location.

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    • Scientifically Formulated

      Each unique blend is scientifically formulated using only the highest quality raw materials.

    • Made in USA

      Manufactured in the USA and GMP certified to preserve quality standards.

    • Third-party Tested

      Third party tested to ensure our products are as powerful as they claim.

    Why I Created My Own Supplements

    I’m Anita, the nutritional scientist behind Unitee!

    Unitee is the world’s first supplement line made specifically for histamine intolerance. For nearly a decade, I’ve helped people to solve histamine intolerance, naturally.

    Before Unitee, I would cherry-pick supplements from brands that just happened to carry a histamine-safe product or two. I was constantly double checking if each brand had changed ingredients, sold out or discontinued their products.

    It often left people having to wait for or part with supplements they relied upon. Your body deserves better, and you deserve a brand to count on.

    After years of experience formulating for some of the world’s greatest supplement brands, I decided to create Unitee: a clean, science-backed, high quality supplement line made solely for histamine intolerance.

    Customer Reviews

    Based on 22 reviews
    Sharon Galloway
    DAO works

    No side effects, and it is effective!!!

    Life Changing

    Now that I have started taking DAO it has changed my life. I can eat and drink things I have not been able to for years!

    HelenMar Williamson
    It is first thing I have found that really works

    For years I have struggled with eczema, set off by my high histamine. I take one capsule of DAO with each meal and all my rash has cleared up. I depend on this enzyme! It is miraculous!

    Sylvia T
    Makes life so much more enjoyable!

    I’m able to eat and drink almost like a “normal” person. Very grateful!

    Mary White

    So grateful for your supplements. Especially keeping your prices at an affordable rate