DAO Supplements Histamine Blocker - DAO Enzyme + Diamine Oxidase & Vitamin C for Daily Histamine Metabolism & Immune Support - 60 ct

I’ve been using this Histamine Blocker for about a week and so far I really like it. I take it before meals and feel more comfortable afterward, especially with foods that usually bother me. Easy to take, gentle, and fits well into my routine. I’ll definitely keep using it.

Great support for histamine intolerance. I noticed reduced reactions after meals and overall better digestion. The DAO enzyme with vitamin C works well, capsules are easy to take, and I appreciate that it’s made in the USA. Solid daily supplement for immune and histamine support.

This histamine blocker works fast and helps me enjoy foods without the usual issues. I like that it’s just one capsule, made with clean, plant-based ingredients, and easy to take before meals. Simple, convenient, and definitely part of my routine now.

Not a cure-all for eczema sufferers but does tone down skin reactions from food. Bought because I know my eczema is triggered by histamine. Wasn't positive whether it was helping at first but then when I went without the tablets for a couple days and got more itchy during meals I knew it was effective.

This supplement has been a helpful addition to my routine. I notice I handle high-histamine foods with a bit less discomfort than before. The capsules are easy to take, and I haven’t experienced any issues with them. While everyone’s body is different, I’m glad I gave these a try as part of my daily support for histamine sensitivity.

Has been super helpful with my nose stuffiness and allergy symptoms.

Helped with my post nasal drip and runny nose.

I have severe chronic illness and unfortunately spent money on this brand thinking it would work like the other brand I have gotten, but it did nothing .. I am so disappointed and sad cause I spent money I could have used for Lyme treatment or for food. The other DAO enzyme i took has less DAO enzyme on the label, yet this one is as if there is none in it at all. When I bought it it said I could return it which is why I was comfortable trying it, but now it saying "not eligible for returns"! I got it 3 weeks ago! I wish I could return it as I am not employed and this was a vital part of my recovery I took it with several meals and each time, it did nothing. I also got the one with the rice in it which is not the one I ordered. I was fine with that aspect. each time it didn't work, I gave it the benefit of the doubt that maybe there was some other variable but because the results were repeatable so many times it's undoubtably the supplement that is not working. I will have to email them and see if they will take it back cause I have $2 in my bank account. I can't afford to throw $35 away. I need to treat my chronic conditions 😪😣😢