Hist Support

Seasonal support for clear, comfortable nasal and sinus passages.*

Hist Support combines quercetin, stinging nettle leaf, bromelain, vitamin C and N-acetyl-L-cysteine (NAC) to support a healthy histamine response and normal respiratory function when the seasons change.*

Same formula, new label. If you have ordered your seasonal sinus support from us before, this is the same trusted formula from the same manufacturer, now under the Dr. Daniel Williams label.

Who it's for

• People who feel the effects of seasonal changes in their nose and sinuses
• Anyone wanting to get ahead of the season with a short loading dose, then a daily maintenance dose
• People looking for a non-drowsy, plant-based option to support healthy histamine levels*

Ingredient spotlight

• Quercetin dihydrate (400 mg): a plant flavonoid that helps stabilize mast cells, the cells that release histamine.*
• Stinging nettle leaf (400 mg): a traditional herb used to support seasonal nasal comfort.*
• Bromelain (100 mg, 240 GDU): an enzyme from pineapple that supports healthy mucus consistency and sinus comfort.*
• Vitamin C (300 mg): an antioxidant that supports immune function and normal histamine breakdown.*
• N-acetyl-L-cysteine (50 mg): supports healthy mucus flow and the body's glutathione production.*

Why customers choose it

• Five complementary ingredients in one formula
• Flexible dosing: loading dose for 7 to 10 days, then maintenance
• Vegetable capsule
• Formulated to be free of gluten, yeast, and artificial colors and flavors
• 40 capsules

What's inside (per 2 capsules)

Vitamin C (as ascorbic acid USP) 300 mg, quercetin dihydrate 400 mg, stinging nettle (leaves) 400 mg, bromelain (from pineapple) 100 mg (240 GDU), N-acetyl-L-cysteine USP 50 mg.

Other ingredients: hypromellose (natural vegetable capsules), silicon dioxide, stearic acid and magnesium stearate.

Suggested use

Loading dose: 2 capsules three times per day for 7 to 10 days.
Maintenance: 2 capsules per day, or as recommended by your health care professional.

Caution: If you are pregnant or nursing, consult your physician before taking this product.

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