Compliance requirements differ enormously by category, and the specifics change over time and by country — this is an orientation to the kinds of requirements each category tends to carry, not a checklist of current thresholds or exact rules. Always confirm the current requirements for your specific product and market directly with the relevant regulator, a testing lab, or a compliance consultant before you finalize sourcing or launch.

Children's products

This is generally the most heavily regulated consumer category, for good reason. Requirements commonly include:

  • Third-party testing for hazards like lead content, phthalates, and physical/mechanical hazards (choking hazard from small parts, sharp points/edges, cord and string length), performed by an accredited testing lab rather than self-certified.
  • Tracking labels — permanent markings on the product and packaging identifying the manufacturer, production location and date, and batch/run information, so a specific unit can be traced back if an issue surfaces.
  • A certificate of compliance (in the US, generally a Children's Product Certificate) that the manufacturer or importer must be able to produce, based on the underlying test reports.
  • Age-grading and warning label requirements that vary by the specific hazard profile of the product (small parts warnings for anything intended for children under a certain age, for example).

New sellers most often get caught out by assuming a supplier's general "CE" or "compliant" claim covers children's-product-specific testing — it frequently doesn't, and the burden of proof generally falls on the seller/importer, not the supplier's say-so.

Electronics and batteries

  • Electrical safety and EMC (electromagnetic compatibility) certification relevant to the destination market (for example, FCC-related requirements in the US, CE-related requirements in the EU — see EU/UK Product Compliance for Cross-Border Sellers).
  • Battery-specific requirements, especially for lithium batteries: UN 38.3 testing documentation is commonly required to ship lithium batteries at all (by air especially), and battery products often carry additional labeling and packaging requirements distinct from the base electronics rules. Marketplaces increasingly ask sellers of battery-containing products to submit this documentation before listings go live, or before fulfillment-network shipments are accepted.
  • Wireless/radio-frequency certification for anything that transmits (Bluetooth, Wi-Fi, RF remotes) — a genuinely separate compliance track from general electrical safety.

Cosmetics and personal care

  • Ingredient labeling using standardized nomenclature (commonly an INCI-style ingredient list) rather than marketing names for the ingredients.
  • Banned or restricted substance lists — cosmetics regulations commonly restrict or prohibit specific ingredients above certain concentrations, and these lists differ by market (a formulation compliant in one country isn't automatically compliant in another).
  • Claims restrictions — the line between a "cosmetic" claim and a "drug" claim (implying a physiological effect, treating a condition) matters a great deal in several markets, and crossing it can reclassify your product into a much more heavily regulated category than you intended to be in.
  • Facility registration and product listing requirements exist in some markets for cosmetics manufacturers/importers — worth checking whether they apply to your situation even if you're not the manufacturer.

Dietary supplements

  • Structure/function claims (e.g., "supports joint health") are generally treated differently from disease claims (e.g., "treats arthritis") — the latter category of claim typically pushes a product toward drug-level regulation, which is a much heavier compliance burden most supplement sellers aren't set up to meet.
  • Facility registration requirements commonly apply to supplement manufacturers, and sometimes to importers, in a given market.
  • Labeling requirements (a "Supplement Facts" panel format, serving size, ingredient disclosure) are typically prescriptive about format, not just content — a label that lists the right ingredients in the wrong format can still be non-compliant.
  • Good Manufacturing Practice (GMP) requirements and third-party certification (from various private certifying bodies) are common expectations even where not strictly mandated by regulation, partly because marketplaces and buyers increasingly look for that certification as a trust signal.

A pattern across all four categories

In every one of these categories, the common failure mode is the same: relying on a supplier's verbal or written assurance of compliance without independently verifying it against documentation specific to your exact product. A generic "RoHS compliant" or "FDA registered" claim from a supplier is a starting point for verification, not a substitute for it — ask for the actual test report or certificate, check that it covers your specific formulation/model (not a "similar" one), and confirm it isn't expired.

Common mistakes

  • Assuming one country's compliance certification (or a supplier's general "compliant" claim) covers every market you sell into.
  • Launching a children's product without lab-verified testing because the item "seems safe."
  • Missing battery-specific documentation (UN 38.3) separately from general electronics safety certification.
  • Using a cosmetic claim that inadvertently crosses into drug-claim territory.
  • Treating GMP or third-party certification for supplements as optional because it's "not strictly required."

FAQs

  • Do I need my own testing if my supplier already tested the product? Generally you need documentation specific to your exact product/formulation/model, from an accredited lab, that you (or your compliance contact) can independently verify — a supplier's assurance alone is usually not sufficient if a marketplace or regulator asks for proof.
  • Does this apply to me if I'm a reseller, not the manufacturer? Often yes — many of these obligations attach to the "importer" or "seller of record" in a given market, not exclusively to the original manufacturer, especially for imported goods.
  • How do I find out the current specific requirements for my product? Start with the relevant regulator's own published guidance for your category and market, and strongly consider a compliance consultant or testing lab experienced in that specific category — requirements and thresholds change, and this page is meant to orient you to the landscape, not substitute for current, product-specific advice.