Finally eat without fear of histamine reactions
Clinical-grade DAO enzyme with full cofactor support. The same 40,000 HDU dose used in published research—no compromise.
+4,768 reviews from real customers
Trusted by people managing histamine intolerance
Read real stories from customers who use Toleric daily.
I was skeptical about DAO supplements until I tried Toleric. The clinical dose actually makes a difference. I can finally eat at restaurants without worrying.
Product Name
$29.99
Verified purchase
The cofactors included make all the difference. I've tried other DAO brands and Toleric is the only one that doesn't leave me guessing about ingredients.
Product Name
$29.99
Verified purchase
MCAS management has been a nightmare until now. 15 minutes before meals and I'm covered. This is worth every penny for peace of mind.
Product Name
$29.99
Verified purchase
The third-party testing was a huge factor for me. I actually checked the COA and it matched what they claim. That's rare.
Product Name
$29.99
Verified purchase
What's inside Toleric
Every ingredient serves a purpose in breaking down dietary histamine.
Diamine oxidase (DAO) breaks down dietary histamine in your digestive tract before absorption. Toleric provides 40,000 HDU per capsule—the clinical research dose.
A key cofactor that enables DAO to function effectively. Included at 10mg per capsule to ensure maximum enzyme activity.
A stabilized form of vitamin C that supports DAO cofactor requirements at 10mg per capsule. Needed for optimal histamine breakdown.
Toleric vs. other DAO brands
We don't cut corners on the dose or transparency. Here's what sets us apart.
Questions about Toleric?
We're here to help. Find answers about dosing, testing, guarantees, and more.
Toleric contains 40,000 HDU per capsule—the same dose used in published clinical research. Most competitors use 10,000-20,000 HDU.
No. Toleric includes catalase and Vitamin C Ascorbyl Palmitate in every capsule. DAO needs these cofactors to work effectively.
Yes. Every batch is tested by an independent lab and the Certificate of Analysis (COA) is published on this page. Check our transparency guarantee.
90-day money-back guarantee. If Toleric doesn't help manage your histamine intolerance, send it back for a full refund. Keep the bottle.