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Questions, Answered

The ones we're asked most. If yours isn't here, just ask.

1Buying & Authenticity

3 questions
Every GUYUN piece ships with a unique serial number and an independent third-party grading certificate. The certificate number can be verified on the issuing authority's website. On arrival, check that the piece and certificate numbers match — or use our Verify page.
Begin with an entry-level incense (a few hundred ringgit): let your nose learn what real agarwood is before advancing to raw material and collector grades. Jumping straight to high-value pieces isn't for beginners.
Origin is only one factor. Resin content (does it sink), years of formation, scent quality and completeness together set the grade — the same mountain can yield a grade 7 and a grade 3 that differ tenfold in price.

2Legality & Sourcing

3 questions
Aquilaria species are listed under CITES Appendix II, and wild sourcing is strictly controlled. All GUYUN products come from legal, cultivated sources, with proof of legal origin and artificial-propagation documentation. Buying and owning them is fully legal.
Cross-border shipment of agarwood involves CITES permits and the customs rules of both sides. Please do not carry or mail raw material across borders yourself. Contact us first — GUYUN assesses and arranges shipment through official channels case-by-case.
Agarwood is an object of fragrance appreciation, not a medicine. GUYUN makes no medical or health claims. Be wary of any agarwood marketed as a cure.

3Orders & After-Sales

3 questions
Standard items may be returned within 7 days if unopened. All pieces carry a 30-day appreciation period; if authenticity is in doubt within that window, submit for re-inspection and GUYUN bears full responsibility if it doesn't match. Collector private-enquiry pieces follow their own agreement.
All orders are fully insured. Please inspect on delivery; if damaged, photograph it and contact us within 48 hours. GUYUN replaces or refunds free, shipping on us.
Yes. Note the title and tax number at checkout, or contact us afterwards. Volume corporate gifting can be issued a price letter.

4Use & Care

3 questions
One is enough. For larger spaces choose a thicker gauge rather than several sticks — overlapping scents interfere and defeat the point of appreciation.
Yes, but avoid sweaty-handed handling and wearing them in the shower. Sweat and hot water seal the resin lines and dull the surface. Seal them in a bag to "rest" when not worn.
Sealed sticks and powder keep for years away from light, improving with age; once opened, use within about 12 months and keep sealed against damp.

5Bespoke & Partnership

2 questions
Yes. From Tier I, foil-stamped cards and custom linings are available; Tier II and above support both packaging and scent-formula customisation. Book volume gifting 30 days ahead.
Submit your interest via the Contact page (select "Reseller / partnership"), describing your client base and channels. After a qualification discussion, sign the agreement and complete training to begin.

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