Natural D-Hist 120 capsules

(1 customer review)

13 in stock

Order limit for this product is 3 bottles.


13 in stock

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The Natural D-Hist formula includes optimal support for nasal and sinus passageways for individuals who anticipate seasonal changes. Also available in convenient blister packs.


  • Supports Immune Balance in Hypersensitive Individuals
  • Supports Sinus and Respiratory Health
  • Promotes Normal Viscosity of Mucus
  • Clears Nasal Passages


Natural D-Hist is a targeted blend of flavonoids, antioxidants, proteolytic enzymes and botanicals designed to provide comprehensive support for seasonal challenges caused by common environmental allergens. The formula includes quercetin, bromelain, stinging nettles leaf, and N-acetyl cysteine. The powerful combination actively promotes healthy nasal and sinus passages for individuals with elevated histamine and respiratory irritation.
Suggested Use:
Loading Dose: 2 capsules three times per day for 7-10 days or as recommended by your health care professional.
Maintenance: 1 or more capsules per day or as recommended by your health care professional.


Quercetin has strong antioxidant activity and has been shown to support immune health by mediating the release of inflammatory compounds including leukotrienes and prostaglandins. Quercetin is known for its ability to stabilize mast cells, diminishing the release of histamine, the compound known to cause hypersensitivity reactions during seasonal changes.

Stinging Nettles Leaf Extract
Stinging nettles leaf is a plant that has been shown to balance immune response, specifically in the airways and nasal passages. Studies have shown that the extract of stinging nettles leaf balances a variety of inflammatory activities that affect respiratory health.

Bromelain is a plant enzyme naturally found on the stem and fruit of the pineapple plant. Bromelain is a proteolytic (protein-digesting) enzyme that aids in in the breakdown of large protein complexes, including antigenic compounds, and has been shown to enhance the absorption of quercetin. Bromelain has been shown to reduce circulating allergenic protein complexes associated with hyper-immune sensitivity and seasonal discomfort.

N-Acetyl Cysteine
N-acetyl cysteine (NAC) is an amino acid precursor to one of the most important antioxidants in the body, glutathione. Both glutathione and NAC help reduce the viscosity of the mucus allowing for clearing of the airways and improved respiratory health.

Vitamin C
Vitamin C cannot be synthesized by humans and is therefore an essential nutrient that must be consumed in the diet. Among its numerous health-promoting properties, vitamin C is an essential vitamin that supports the immune system and is also a potent antioxidant. When the body is under a significant amount of stress, vitamin C is excreted rapidly. Vitamin C has many immune boosting properties, but is distinctively beneficial for individuals with seasonal discomfort because of its ability to deactivate histamine.

SKU: N7-TA6I-GRSW Category:

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  1. xiaoxi99202

    I am a busy almost-40-year old mom and I have always had horrible allergies to so many environmental things, including pets…and I also have a Great Dane that I’m not about to give up! The OTC antihistamines, nasal steroids, and asthma meds were not doing enough and I’d still be miserable many hours of the day, especially if I gave in and played with my big sweet pup. I was determined to find something natural as an adjunct to my medications since, in the past, allergy shots would cause severe reactions with wheezing, etc. The medical community had nothing more to offer me, other than to encourage me to give up my beloved 4 legged kid. (I am a medical professional by trade, so I know what’s out there and short of continuous steroids I’ve tried everything). I decided to give D-Hist a try and honestly, it is nothing short of amazing. Within an hour of the first dose, I could tell a difference, but the effect wore off quickly. Over time I have noticed a build up of the effects. It’s been a week and I’m still taking 2 caps 3 times a day, but I have been able to greatly decrease how often I need the other medications. I was very skeptical, but I am pleasantly surprised! I can play with my dog without wheezing and sneezing, and in the past if he’d mouth my arm or lick me, I’d have itchy welts within minutes…so far, no welts, unless I’m due for a dose of my D-Hist. I then take it and they resolve. I don’t usually write reviews, but I know they made a difference in my buying this, so I wanted to contribute. I take 2 as soon as I get up in the morning and I’m ready to go! (I try to eat within 30 min or I do get a bit of nausea, but otherwise, no problem!) Also, the ingredients are so good for so many other issues, I’ll be interested to see what else improves! We’ll see how it goes longer term, but so far so good!