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Search Brands Biomarkers Liver safety

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“Quercetin Dihydrate”

Avoid-flagged

Douglas Laboratories
Pack #1, Joint Health Pack
30 servings1 avoid
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supplementhackr

Rigorous, authority-cited supplement data. No editorializing, no health claims — just labels, chemistry, and references.

Data sources

NIH DSLD
FDA UNII / GSRS
NIH Office of Dietary Supplements

Authority references

EU Commission Regulations
FDA 21 CFR
EFSA Journal opinions
NTP Report on Carcinogens

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