Buying guides
Authentic luxury cosmetics: investigate product provenance

Provenance matters more than one packaging detail
Polished packaging, a batch code or a convincing photograph cannot authenticate a cosmetic on their own. Start by identifying the seller and its relationship to the brand’s distribution network. Retain the invoice and exact product details so you can ask the manufacturer informed questions if something about your purchase creates a reasonable doubt.
Respond carefully when an item appears questionable
An unfamiliar smell, changed texture or inconsistent label is a reason to pause use and contact the seller. Avoid conclusions based solely on internet photographs, because packaging evolves over time. The house’s official contact channels and public consumer-reporting services can help document the issue without turning an unverified concern into a definitive accusation of counterfeiting.
Resources to explore further
Guerlain — boutiques
Guerlain’s official locator helps identify points of sale recognised by the house before purchasing its fragrance, makeup or skincare products.Dior Beauty
Dior’s contact and store-finding services provide direct routes for asking the house about a particular reference or distribution channel.SignalConso
SignalConso provides a public reporting route in France for documenting a problem with a professional seller and requesting an appropriate response.