Now Foods Riboflavin 400mg Sustain Release from China
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 — China → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Provide release profile data proving sustained therapeutic delivery
• Matrix composition disclosure for FDA active ingredient verification
• Higher potency requires stricter purity assays