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3004.50.10.00/Now Foods Riboflavin 400mg Sustain Release/Canada

Now Foods Riboflavin 400mg Sustain Release from Canada

Sustained-release 400mg Vitamin B2 tablets from modified aromatic synthesis for extended migraine prevention therapy. HTS 3004.50.10.00 as retail measured dose single vitamin product.

Duty Rate — Canada → United States

0%

Rate breakdown

9903.05.860%Universal product exemption (U.S. note 52(b))
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Import Tips

• Provide release profile data proving sustained therapeutic delivery

• Matrix composition disclosure for FDA active ingredient verification

• Higher potency requires stricter purity assays