Yes — 100% authentic, guaranteed. We buy directly from Korean brands and established distributors, and every item ships in its original brand packaging with the Korean batch code and expiry date printed on it, so you can verify it yourself. If anything you receive from us is ever not authentic, we'll refund you in full.

Orders ship from our facility in Ontario, Canada, with tracking on every package. Standard delivery takes 3 to 9 business days across Canada and the U.S., and shipping is free on orders over CA$65 in Canada and US$49 in the U.S. U.S. orders: we handle all tariffs and customs paperwork — there is nothing extra to pay at delivery. In Canada, Express delivery (1–3 business days) is available at checkout.

If your order arrives damaged, defective, or incorrect, email us at customerservice@seyune.com with a quick photo and we'll replace it or refund you. We also accept returns on new, unopened, sealed items within 14 days of the shipment date.

Checkout is handled by Shopify's PCI-certified payment infrastructure — the same system used by millions of stores worldwide. Your card details are encrypted and never stored on our servers; we never see them.