Melatonin USP Powder from Mexico
Pure melatonin powder, a synthetic pineal hormone used primarily for regulating sleep-wake cycles. It falls under HTS 2937.90.90.00 as a hormone derivative used primarily as a hormone for therapeutic purposes. This classification covers synthetic reproductions of natural hormones not specified elsewhere in heading 2937.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Provide Certificates of Analysis (CoA) confirming purity and USP standards to verify hormone classification
• Ensure FDA registration and compliance with dietary supplement labeling if marketed as such
• Avoid misclassification as a vitamin by documenting its primary hormonal function