Hista Pro

5.0 Stars Based On 6 Reviews

Natural & effective relief for seasonal allergies

Say goodbye to sneezing, watery eyes, and nasal congestion with Hista Pro. This powerful NON-DROWSY blend of flavonoids, enzymes, & botanicals help degrade histamine load, reduce inflammation, and thin mucous secretions so you can feel your best every season. Contains 120 capsules.

General Health GMP Compliant Made in the USA Third-Party Tested Vegetarian

Why We Love This

Hista Pro is wonderful for seasonal & environmental allergy sufferers and often reduces/eliminates the need for seasonal allergy medication.  Get ready to say goodbye to sneezing, congestion, and runny eyes!
Erica Armstrong
Erica Armstrong
MD, IFMCP, Founder/CEO of Root


5.0 Stars Based On 6 Reviews

5 of 5
Helps with allergies year round

I incorporate D-Hist everyday into my morning and dinner vitamins. I had a serious cold and then COVID back-to-back a few years ago, and ever since, my ears have been stuffy and irritated. I went to an ENT to have them look into it, but they couldn't help. So I turned to Dr. Armstrong. She recommended D-Hist along with a saline nose spray. It has gradually improved over time. Grateful to have a safe remedy to a frustrating problem.



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Root Hista Pro:

  • Contains a powerful blend of quercetin, stinging nettles, bromelain, NAC, and vitamin C 
  • Supports relief from seasonal allergy symptoms & histamine intolerance.
  • Helps clear nasal passages & supports overall respiratory health
  • Provides relief without drowsiness 
  • May also help ease weather related headaches stemming from changes in barometric pressure.

Best results are achieved when starting with a loading dose of 2 capsules 3 times per day for 7-10 days followed by a maintenance dose of 2 capsules per day.

FDA Statement

*These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.


Suggested dosage: Loading dose: 2 capsules 3 times per day for 7-10 days followed by a maintenance dose of 2 capsules per day.


2 capsules contain:
Vitamin C (as Ascorbic Acid USP) 300 mg
Quercetin Dihydrate 400mg
Stinging Nettle (Leaves) 400mg
Bromelain (from Pineapple) (2,400 GDU/g) 100mg
N-Acetyl-L-Cysteine USP 50 mg

Other Ingredients: Natural Vegetable Capsules, Magnesium
Stearate, Silicon Dioxide, and Stearic Acid.
erica and kelsey
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