Products

Label data from official national databases and brand websites, as declared; not lab-verified.

Ingredient

Min (mg)

Max

Country

Dosage form

Source

Brand	Product	Per day	Country	Source
Bluebonnet	Super Antioxidant Formula	100 mg	United States	US NIH DSLD
Purus Labs	Organ Shield	150 mg	United States	US NIH DSLD
Absorb Health	Quercetin 500 mg	500 mg	United States	US NIH DSLD
Vimerson Health	Turmeric Quercetin Bromelain	500 mg	United States	US NIH DSLD
Windmill Natural Vitamins	Quercetin 500 mg	500 mg	United States	US NIH DSLD
Nature's Lab	Quercetin with Bromelain	800 mg	United States	US NIH DSLD
NOW	Respir-All	800 mg	United States	US NIH DSLD
Highland Laboratories	Quercetin/Nettle Liquid	600 mg	United States	US NIH DSLD
PureBulk.com	Quercetin Dihydrate Pure	1,000 mg	United States	US NIH DSLD
Natural Factors	Quercetin LipoMicel Matrix	250 mg	United States	US NIH DSLD
Wachters'	No. 54 Vitamin C And Quercetin	500 mg	United States	US NIH DSLD
Wachters'	No. 54 Vitamin C And Quercetin	500 mg	United States	US NIH DSLD
Best Naturals	Quercetin 1000 mg	1,000 mg	United States	US NIH DSLD
Natural Factors	Quercetin LipoMicel Matrix	750 mg	United States	US NIH DSLD
Natural Factors	Quercetin LipoMicel Matrix	250 mg	United States	US NIH DSLD
Natural Factors	Quercetin LipoMicel Matrix	250 mg	United States	US NIH DSLD
Life Extension	Vitamin C and Bio-Quercetin Phytosome	15 mg	United States	US NIH DSLD
Sports Research	Quercetin 500 mg	1,250 mg	United States	US NIH DSLD
Dr. Mercola	Vitamin C-Pak with Quercetin Natural Orange Flavor	500 mg	United States	US NIH DSLD
Life Extension	Fast-C and Bio-Quercetin Phytosome	15 mg	United States	US NIH DSLD
Life Extension	Vitamin C and Bio-Quercetin Phytosome	15 mg	United States	US NIH DSLD
Peak Performance	Quercetin Phytosome	250 mg	United States	US NIH DSLD
aSquared Nutrition	Quercetin with Zinc	1,000 mg	United States	US NIH DSLD
CATALO	Quercetin & Green Tea Extract Sensitive Skin-Care Formula	1,260 mg	United States	US NIH DSLD
NHC Natural Healthy Concepts	Quercetin Bromelain Complex with DMG	750 mg	United States	US NIH DSLD
aSquared Nutrition	Quercetin 500 mg	500 mg	United States	US NIH DSLD
MoxyVites By NutraFitz	Whole Food Quercetin	1,110 mg	United States	US NIH DSLD
KAPPA NUTRITION	Quercetin 3 in 1 Advanced Complex	1,000 mg	United States	US NIH DSLD
Body Kitchen	Mega Quercetin	1,000 mg	United States	US NIH DSLD
MRM	Quercetin 500 mg	1,500 mg	United States	US NIH DSLD

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For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.