Retinaldehyde Powder from Mexico
Retinaldehyde is the bioactive aldehyde form of Vitamin A used in advanced skincare and supplements. HTS 2936.21.00.00 covers it as an unmixed Vitamin A derivative per chemical structure. Highly potent, requiring stabilization.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Air-sensitive; import under nitrogen flush packaging with stabilizer declaration
• Cosmetic vs. pharma end-use determines FDA pathway; declare intended use
• High oxidation risk - include stability studies in documentation