- Seasonal support supplement featuring quercetin, a natural histamine blocker, helping to inhibit histamine release, along with key additional ingredients for immune support.
- Key additional ingredients—like the pineapple enzyme bromelain, magnesium citrate, and vitamin C—serve to activate and optimize quercetin’s benefits, in addition to providing immune, respiratory, and antioxidant support.*
- Suggested Use: 3 capsules 1 to 2 times daily in divided doses, between meals. If you have a delicate, easily irritated stomach, take with meals.
- Over 40 Years of Trust. Source Naturals was created in 1982 by CEO Ira Goldberg to support everyone’s potential to enjoy optimal health.
- Manufactured in the USA. Manufactured in Scotts Valley, CA, under the Good Manufacturing Practices (cGMPs) established by the US Food and Drug Administration (FDA).
