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Effective Allergy Relief From

Histamine Shield Plus

The All-Natural Antihistamine Supplement that works against all major allergens, including Pollen, Pet Dander, Dust, Odor Infused Particles, Dust Mite Debris, and Mold.

Supports your immune system and helps fight your body’s response to seasonal changes and environmental allergens. Take Histamine Shield Plus prior to exposure to the allergen.

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Histamine Shield Plus for Kids

The All-Natural Antihistamine Supplement for kids that works against all major allergens, including Pollen, Pet Dander, Dust, Odor Infused Particles, Dust Mite Debris, and Mold.

Supports your immune system and helps fight your body’s response to seasonal changes and environmental allergens. Take Histamine Shield Plus for Kids prior to exposure to the allergen.

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What Customers Are Saying

“I had no idea just how great it feels to live absolutely symptom-free again, until I had it back in my life and boy was it great!”

Emily Andrews

“This is by far one of the best product for all-over sinus and allergy support that I’ve ever encountered.”

James Tasker

“I can really tell a difference in the congestion that I normally have due to allergies. I’m thrilled.”

Mary Lou Rosen

David Phillipson
David Phillipson
Shipping has been a nightmare. A product that was supposed to come in days, still has not arrived and I keep on being told it is going to arrive on such and such a date and it does not arrive. It is over a month late.
Crystal Sterner
Crystal Sterner
I am a repeat customer - these really help with my allergies.
Crystal Sterner
Crystal Sterner
This is a fantastic product!
John-Michael N.
John-Michael N.
Will definitely purchase again!
Loretta Bell
Loretta Bell
It's too early to tell if this is working. I've only been taking it for 5 days. Bought this product based on the great reviews it had, so I'm really hoping it helps with these damn allergies that I just developed out of the blue!
Karan Winkelman Macy
Karan Winkelman Macy
Amazon Customer
Amazon Customer
Thank you.
It seems to be working
Linda Dills
Linda Dills
Great product

Take Back Control and Stop Suffering From Allergies

We comb the globe for the very best products! In many cases, we’ve created a generic version using the highest quality ingredients and those using good manufacturing practices to bring you high-quality products at fair and honest pricing.

WellSource’s professional staff has identified a antihistamine-free best-in-class formulation to boost your body’s immune system, alleviating your allergic symptoms. Curated for you, by healthcare professionals, to shield you from your immune system’s histamine response to allergens such as Mold, Pollen, Dust, Dander, Mites and Odor Infused Particles. This product works primarily as a mast cell stabilizer and immune modulator reducing your body’s traditional response and histamine release.

Supplement Information

Histamine Shield Plus is a targeted blend of flavonoids, antioxidants, proteolytic enzymes and botanicals designed to provide comprehensive support for seasonal and environmental allergens. Histamine Shield PlusTM includes quercetin, a powerful flavonoid, to support healthy histamine levels. Bromelain enhances the absorption of quercetin and supports mucosal tissue health. Stinging nettles leaf balance hyper-immune response and N-acetyl cysteine clear the airways by promoting normal viscosity of mucus. This powerful combination actively promotes healthy nasal and sinus passages for individuals with elevated histamine and respiratory irritation.

Stinging Nettles Leaf Urtica dioica, commonly known as stinging nettles, 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. Stinging nettles leaf controls mast-cell degranulation, prostaglandin formation, and histamine action all contributing to a balanced inflammatory response.

Quercetin is a biologically active flavonoid antioxidant that is widely distributed in plants including oak trees, onions and tea. 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.

Bromelain is a plant enzyme naturally found on the stem and fruit of the pineapple plant. Bromelain is a proteolytic 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 hyperimmune sensitivity and seasonal discomfort.

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 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, both emotional and environmental, 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.


Loading Dose:
2 capsules three times per day for 7-10 days or as recommended by your health care professional.

2 or more capsules per day or as recommended by your health care professional.

Does Not Contain
Wheat, gluten, soy, animal or dairy products, fish, shellfish, peanuts, tree nuts, egg, artificial colors, artificial sweeteners or preservatives.

If you are Pregnant, Nursing, or for Children under 12 years of age consult your health care professional before taking this product.

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