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SunActive IsoQ

SunActive IsoQ is a water-soluble form of isoquercitrin (a quercetin precursor) with quercetin bioavailability that is many times higher than free quercetin. 

  • Highly bioavailable – 25 times greater than quercetin
  • Water soluble
  • Patented production process

SunActive IsoQ converts to quercetin in the body. Quercetin is a flavonoid known for its wide-ranging health benefits.

  • Immune health
  • Allergy relief  
  • Sports performance
  • Antioxidant
  • Cardioprotective
  • Chondroprotective

Water-soluble and highly bioavailable
SunActive IsoQ is derived from rutin (extracted from the flower buds of the Japanese Pagoda tree) using Taiyo’s patented, solvent-free, enzymatic process. The result is a water-soluble dietary ingredient, chemically identical to isoquercitrin found in nature. Our unique microencapsulation technology allows for it to be well absorbed and then highly converted to free quercetin in the body.

Clinically studied
SunActive IsoQ has been evaluated in a clinical study with healthy human volunteers. The results, published in the Journal of Functional Foods, confirmed that SunActive IsoQ showed significantly higher bioavailability – 25 times higher than free quercetin. This allows for a 100 mg dose of SunActive IsoQ to deliver the equivalent of 275 mg of bioavailable quercetin providing significant formulation benefits.

SunActive IsoQ is Generally Recognized as Safe (GRAS) by a panel of independent experts.


  • Dietary Supplements
  • Capsules
  • Tablets
  • Gummies & Confectionaries
  • Functional Foods & Beverages

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