Rated 4.6 out of 5 stars
201 Reviews
Supports the healthy breakdown of food-derived histamine


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  • Offers the patented enzyme formula containing diamine oxidase (DAO)
  • Is formulated to help break down food-derived histamine in the digestive tract
  • Supports a healthy immune response to ingested histamine
  • Is easy to use, just take 1 capsule before a meal containing high histamine food
Rated 4.6 out of 5 stars
Based on 201 reviews
Total 5 star reviews: 160 Total 4 star reviews: 23 Total 3 star reviews: 9 Total 2 star reviews: 2 Total 1 star reviews: 7
89%would recommend this product
201 reviews
  • DC
    Darlene C.
    Verified Buyer
    2 months ago
    Rated 5 out of 5 stars
    Works like magic!

    I started taking Histazme due to having hives that would not go away. This worked immediately and I haven't had a breakout since. I highly recommend this product. Darlene

  • RC
    Rita C.
    Verified Buyer
    3 months ago
    Rated 5 out of 5 stars
    It’s A Journey

    Tiny, yet it works! Symptoms have improved greatly.

  • SA
    Sherril A.
    Verified Buyer
    3 months ago
    Rated 5 out of 5 stars

    Delivers as promoted!

  • EM
    Ellen M J.
    Verified Buyer
    5 months ago
    Rated 4 out of 5 stars
    My Results

    I'm pleased that the Histazyme has helped me. I have a lot of problems with diarrhea. I'm having fewer bouts with this issue. I'm having difficulty figuring out the best approach with this supplement. I need to figure out the frequency for me and I also need to study your reports about leaky gut. I'm reordering your product. Thanks

  • A
    5 months ago
    Rated 5 out of 5 stars
    5 Stars

    Excellent DAO product for high histamines. Especially with each tab having 20,000 IU dao is excellent standard of anti histamine supplement.

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