Use official brand channels
Start with the brand's mainland China website or store locator to confirm the boutique, product details and current services. Ask how the local warranty works and whether the same service follows the item if you later move or travel.
Buy pre-owned with documentation
Require an item-specific condition report, clear photographs, seller identity, written authenticity commitment and return terms. Check how authentication is performed and whether the seller accepts an independent review. No app screenshot, certificate or box alone proves authenticity.
Compare materials and climate needs
Consider heat, humidity, air-conditioning and seasonal rain when selecting leather, watches, jewellery and clothing. Confirm local repair routes and the exact maintenance requirements of delicate finishes before buying.
Cross-border purchases need a separate check
If carrying a purchase abroad or returning home with it, check the current official rules for both jurisdictions. Tax, declaration and warranty arrangements depend on the specific item and personal circumstances; obtain advice from the relevant authority.