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HistaBlock (90 caps)
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HistaBlock (90 caps)

by Nature's Sunshine

Availability: Out of stock



  • Supports the body in times of respiratory stress.
  • Supports the body's efforts to maintain a healthy mucous membrane.
  • Supports free breathing and may help reduce unpleasant symptoms associated with irritants.

How It Works:

HistaBlock provides nutrients that support healthy respiratory function as the body battles irritants, pollutants and toxins. Stinging nettle provides well-known support against seasonal airborne substances. This formula provides antioxidant strength to help stabilize mast cells.

The antioxidant quercetin has been used for its reputed effects in supporting the respiratory system. Quercetin may help stabilize cells that release compounds when exposed to irritants. Bromelain is an enzyme that works to help reduce the swelling of mucous membranes during times of respiratory stress. Bitter orange contains synephrine, which helps the body support open airways.


Nettle leaves, quercetin, Bitter orange fruit and bromelain.

Recommended Use:

Take 2 capsules with a meal twice daily.

Additional Information

Promotion N/A

Customer Reviews

did not help Review by Carolyn
Did not help my allergies. I used this instead of Zyrtec and was sneezing all day, had to go back to the Zyrtec. (Posted on 6/5/2016)
This is the only thing I take for allergies. Review by Jay
I stopped taking a daily allergy pill, using nasall cort and taking other sinus meds. It helps with 98% of my allergies. Where other people complain of headaches and recurring sinus issues, I don't have that anymore. (Posted on 5/6/2016)
blood pressure medicine Review by Tracy
My neighbor is a nutritionist so when me allergies got unbearable I asked her what I could take that wouldn't affect my blood pressure medicine. She gave me HistaBlock. It worked so well I had to order it so I have it on hand. (Posted on 3/17/2016)
Love histablock Review by Kathy
Have year round allergies. Love this stuff. Helps with my allergy symptoms. Doesn't completely irradicate them but coupled with acupuncture I'm allergy free! (Posted on 1/7/2016)

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