Douglas Laboratories Quercetin-Bromelain Complex

11 reviews

Selection: 100 Tablets
Sale price$39.60

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  • Douglas Labs Quercetin-Bromelain Complex is a unique formulation of quercetin, buffered vitamin C and bromelain.
  • Quercetin is a bioflavonoid that has antioxidant activity to support vascular and immune cell function.
  • Magnesium ascorbate is a buffered form of vitamin C, a key antioxidant, which synergistically supports the quercetin activity.
  • Bromelain is a proteolytic enzyme purified from pineapple.


Serving Size 1 Tablet

Amount Per Serving  %DV

Vitamin C…....... 200 mg 333%

(as magnesium ascorbate ascorbic acid complex)

Magnesium…….13 mg 3%

(as magnesium ascorbate)

Quercetin.........333 mg

Bromelain .........240 m.c.u.

*Daily Value not established.

Other Ingredients:

Cellulose, stearic acid, vegetable stearate, silica and ethylcellulose.

Suggested Usage:

Two to four tablets twice daily between meals as a dietary supplement, or as directed by physician.

Side Effects:

No adverse side effects have been reported.


Store in a cool, dry place, away from direct light. Keep out of reach of children.

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

Customer Reviews

Based on 11 reviews
Sherrie C.

I like it

Christine P.
Quercetin-Bromelain Complex

Great product and recommended by PCP to combat the corona virus.

Douglas Laboratories Quercetin-Bromelain Complex

Originally I had heard high dose Quercetin was helpful as a natural seasonal allergy mitigation because of it's anti-oxidant & anti-inflammatory characteristics. The need for that varies year to year. Since the onset of COVID Quercetin has been mentioned by various doctors Such as Dr Zelensky as a natural help in mitigating COVID infection/exposure so I make sure to keep some on hand "just in case". Obviously anything that tones down inflammation is good during a "cytokine storm" but if I recall correctly it helps with the zinc. I like Douglas Labs formulation because of their known high quality but also because they provide the quercetin in combination with other helpful supplements that are known to help as anti-inflammant and anti-oxidant agents.. IE, because your buying quercetin they know what your trying to achieve so they add in "you also need this stuff" factors like Vitamin C, Bromelain and magnesium..

I have developed a trust of Douglas labs offerings for both their high quality and relatively high value

Cathy A.

Excellent service

Timothy E.
Good anti- inflammatory

Was very happy with the prompt service. I’ve been taking this supplement for quite a while believe it works well.

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