No—all concentrations of hydrogen peroxide, from dilute household grades to high-strength industrial solutions, fall under heading 2847 and its single subheading 284700. Concentration does, however, affect DOT hazardous-materials classification and packaging requirements, which importers must address separately from tariff classification.

Both forms are explicitly covered by heading 2847 and classified together under subheading 284700. The urea-solidified form (sometimes called carbamide peroxide) is a stable solid used in dental and cosmetic applications; its physical form does not change the tariff classification, but it may trigger different FDA regulatory review depending on its intended end use.