Natural D-Hist

Nasal and sinus support for the height of the growing season. Enjoy the outdoors once again!

Price: $43.20


SKU: gla26040

D-Hist is a wonderful natural allergy supplement on par with the medications like Zyrtec and Claritin. Be certain to start taking several weeks prior to allergy season.


SUGGESTED USE: As a dietary supplement, Loading Dose: 2 capsules three times per day for 7-10 days. Acute: 2-3 capsules as needed. Maintenance: 1 or more capsules per day or as recommended by your health care professional. Mild stomach upset or allergic reaction may occur with any herbal product. Move dose closer to meals or cease product use if symptoms persist. Persons allergic to bromelain/pineapple should not use Natural D-Hist. If you are pregnant or nursing, do not use Natural D-Hist. Persons using blood thinning medications should use caution while taking Natural D-Hist.



  • Serving Size: 1 Capsule
  • Total Servings: 120
Item Amount
Vitamin C 150 mg
Quercetin Dihydrate 200 mg
Stinging Nettles Leaf 200 mg
Bromelain 50 mg
N-Acetyl-L-Cysteine USP 25 mg

Other ingredients: Natural Vegetable Capsules. This product may contain one or more of the following: Calcium Silicate, Magnesium Stearate, Microcrystalline Cellulose, Silicon Dioxide, and Stearic Acid.

Quercetin: Among the flavonoids, quercetin is one of the most biologically active. One of the best studied effects of quercetin is its ability to prevent mast cells from de-granulating during an allergic response. In preventing mast cell de-granulation, quercetin prevents the release of histamine, one of the major triggers to the overall allergic response. Stinging Nettles: Nettles leaf has been shown to be effective when used for hayfever. N-Acetyl Cysteine: NAC is a precursor to one of the bodies most potent anti-oxidants, glutathione. NAC breaks (reducing) the disulphide bonds in mucus of the intestines and especially the lungs, making mucus less viscous. Ascorbic Acid Vitamin C: One of the most talked about vitamins in recent decades, vitamin C activity was first identified hundreds of years ago for it’s ability to prevent and treat scurvy. There are few conditions for which Vitamin C has not been promoted for, and in many cases had some effect. Bromelain: Bromelain is the term used to describe a group of enzymes derived from the stem and fruit of the pineapple plant (Ananas comosus). As a plant enzyme, Bromelain has many advantages and uses as a supplemental ingredient. Bromelain has an “Approved” status by the German Commission E for micro inflammations (allergic reactions, localized internal infections). Other activities associated with Bromelain include inhibition of platelet aggregation, decreasing the viscosity of mucus (mucolytic), antibiotic activity and smooth muscle relaxant.