Antihistamine & Mast Cell Support

Anti-Hist

Quercetin, bromelain & vitamin C · Natural support for seasonal and histamine-related symptoms
Apply for a practitioner account to view pricing

Anti-Hist blends quercetin, stinging nettle leaf, bromelain, and vitamin C to support the body's response to excess histamine — from seasonal allergies to the broader symptoms of histamine intolerance. It's formulated to target histamine release and mast cell activity at the root, not just mask symptoms.

Apply Now
Ingredients
Ingredients
Suggested Use

Loading dose: 2 capsules, 3 times daily for 7-10 days, or as recommended by a healthcare professional. Maintenance dose: 1-3 capsules per day. Keep container tightly closed and store at room temperature. Not recommended during pregnancy.

Shipping

Ships via tracked courier within 5-7 business days. Flat-rate shipping is $9.99, free on orders over $250. We currently ship within the United States only.

FDA-Registered, cGMP-Compliant Facility
Every Batch Third-Party Tested
Manufactured in the USA
Formulated by a Nutritional Scientist
Free From Sugar, Gluten, Dairy & Fillers
FDA-Registered, cGMP-Compliant Facility
Every Batch Third-Party Tested
Manufactured in the USA
Formulated by a Nutritional Scientist
Free From Sugar, Gluten, Dairy & Fillers
Why Stock This

Targets the root cause, not just the symptoms.

Dual-Action Formula

A blend of quercetin, bromelain, stinging nettle, and vitamin C formulated to support mast cell stability and the body's histamine response — not just block a receptor after the fact.

Made in the USA, cGMP Certified

Manufactured in an FDA-registered, cGMP-compliant US facility, so you can stand behind quality and consistency when recommending it to patients.

Third-Party Tested, Every Batch

Independent lab verification on potency and purity for every production run — full Certificate of Analysis viewable below.

Certificate of Analysis
Verified, Not Just Claimed

See the third-party test results for yourself.

We send every batch of Anti-Hist to an independent lab for verification before it ships. Click the document to view the full report — potency and ingredient identity confirmed by a party with no stake in the result.

  • Label claims verified against actual formulation
  • Batch-specific results, not a one-time test
  • Guaranteed quality in every bottle
The Difference

How Anti-Hist compares to a conventional antihistamine.

Conventional antihistamines block a receptor after the fact. Anti-Hist is formulated to support the body's own histamine and mast cell response.

Factor
Anti-Hist
Generic Antihistamine
Formulation focus
Targets histamine & mast cell activity
Blocks a receptor, masks symptoms
Ingredient blend
Quercetin, bromelain, nettle & vitamin C
Single synthetic active ingredient
Drowsiness
Non-drowsy, natural support
Often causes sedation
Testing
Third-party verified, every batch
Not always independently verified
Manufacturing
cGMP-certified US facility
Standards vary by brand
Label
No sugar, gluten, dairy, starch, or fillers
Often contains fillers, additives
Who May Benefit

Anti-Hist may support those experiencing:

Histamine & Immune Response

Histamine Sensitivity Mast Cell Sensitivity Allergy-Type Reactions

Respiratory & Skin

Respiratory Discomfort (seasonal or environmental triggers) Skin Reactions (rashes, hives, flushing)

Neurological & Energy

Brain Fog, Dizziness & Poor Focus Migraines & Headaches Fatigue or Low Energy

Digestive & Inflammatory

Food Sensitivities Ongoing Inflammation
Enlarged image
Track Record

Real demand from real patients.

0 Units sold in the last 12 months
0 Average customer rating
0 Order retention — under 1% product returns
0 States with active customers
Reviews

What customers are saying.

★★★★★

“I have been struggling and searching for 10 years to find relief! Finally, something that works!”

★★★★★

“This has been a life-changer for me. As someone who suffers from allergies, I've tried numerous products, but Anti-Hist stands out.”

★★★★★

“This product was the best aid for me as I leveled out and started healing from histamine intolerance. This will always be in my medicine cabinet.”

★★★★★

“It's truly a game-changer, allowing me to tolerate more foods with fewer negative reactions.”

Anita Tee, Nutritional Scientist & Product Formulator
The Formulator

“I spent years pulling together whatever histamine-safe products happened to exist across other brands. Unitee exists so you don't have to.”

Anita Tee, Nutritional Scientist & Product Formulator
Unitee — over a decade specializing in histamine intolerance and MCAS
FAQ

Common questions before stocking Anti-Hist.

How is this different from a conventional antihistamine?

Conventional antihistamines block a histamine receptor after the fact. Anti-Hist combines quercetin, bromelain, stinging nettle, and vitamin C to support mast cell stability and the body's own histamine response — without the drowsiness often associated with pharmaceutical options.

What's the recommended dosage for patients?

Loading dose: 2 capsules, 3 times daily for 7-10 days, or as recommended by a healthcare professional. Maintenance dose: 1-3 capsules per day.

Is it suitable for individuals with additional sensitivities?

Yes — Anti-Hist is vegan and free from gluten, wheat, dairy, soy, yeast, sugar, starch, and artificial colors or flavors. It isn't recommended during pregnancy.

Do you provide documentation for third-party testing?

Yes, every batch is independently tested for potency and purity. The full Certificate of Analysis is viewable further up this page — just click it to zoom in.

How should it be stored?

Keep the container tightly closed and store at room temperature.

Anti-Hist
Anti-Hist Apply for pricing
Apply for Access