Quercetin Synergy


Dr. Song’s specially formulated Quercetin Synergy

Quercetin Synergy is a synergistic blend of flavonoids, antioxidants, proteolytic enzymes and botanicals designed to provide comprehensive support for seasonal challenges caused by common environmental allergens*. Our formula contains quercetin, bromelain, stinging nettle leaf, N-acetyl-cysteine (NAC), and Vitamin C. This powerful combination promotes healthy nasal and sinus passages for individuals with elevated histamine and respiratory irritation*.

80 in stock (can be backordered)


Dr. Song continuously reviews and handpicks the very best supplements to make sure that you’re getting exactly what she trusts enough to give to her own family and patients! Quercetin Synergy replaces Natural D-Hist.

Compare with Natural D-Hist

  • This is Natural D-Hist that has been relabeled for Healthy Kids Happy Kids.

Benefits of supplementing with Quercetin Synergy may include:

  • Supporting healthy immune response*
  • Supporting sinus and respiratory health*
  • Providing support during seasonal challenges*
  • Supporting healthy histamine response*
  • Promoting normal viscosity of mucus*
  • Keeping nasal passages clear*

Suggested Use:

  • 13+ Years: 1 capsule per day or as recommended by your healthcare professional

Does Not Contain:
Wheat, gluten, dairy, soy, eggs, corn, yeast, fish, shellfish, peanuts, tree nuts, egg, artificial colors, artificial sweeteners or preservatives.

Children and pregnant or lactating women should consult their healthcare practitioner prior to use.

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

Additional information

Weight 6 oz

120 Capsules

Healthy Kids Happy Kids
  • facebook
  • instagram
  • pintrest
  • twitter
Privacy Policy | Terms of Service | Medical Disclaimer
Shipping Information | Return Policy | Contact Us

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