FAQ – B2B

5-step complaint process (register→investigate→verdict→resolve→prevent), 2-5 day verdict, retained samples 36 months, replacement/credit options.

How does cinnamon bark oil compare with cinnamon leaf oil and Ceylon cinnamon oil?

Cassia bark: aldehyde 70-88%, hot-sweet, low cost; Ceylon: ~50-75%, delicate, 2-4x price, high coumarin; leaf: eugenol 70-90%, clove-like, cheapest.

Do you provide a Certificate of Analysis (COA) for every batch?

Full COA per batch: appearance, odor, density, RI, rotation, acid value, carbonyl ≥80%, trans-cinnamaldehyde ≥74%, coumarin, heavy metals, microbiology; GC-MS summary included.

Which botanical species does this cinnamon bark oil come from, and where is it grown?

Cinnamomum cassia (L.) J. Presl (syn. C. aromaticum Nees), Lauraceae, dried bark & twigs; Guangxi/Guangdong China ('Xijiang Gui','Dongxing Gui'); the world's warmest spice oil, TPS-RO-008, CAS 8007-80-5.

What does cinnamon bark oil blend well with?

Pairs with orange, mandarin, clove, nutmeg, ginger, vanilla, benzoin, patchouli, sandalwood, rose; ratio 1:3-10 partners; holiday trio 1:4:1.

How consistent is the quality between batches?

Fixed spec window + GC-MS fingerprint + lot blending; retained samples 36+ months; tighter windows held for dedicated SKUs.

How is cinnamon bark oil used in aromatherapy?

Diffuse 1-3 drops (warming/comfort/focus); skin max 0.5-1% diluted with patch test; avoid pregnancy/children 6/pets; Skin Sens. 1A.

How would you describe the aroma of this cinnamon bark oil?

Intensely warm sweet-spicy cinnamic aroma; rich cinnamaldehyde signature, clove-like warmth, sweet woody drydown; the world's warmest spice oil.

What does this cinnamon bark oil look like — appearance, color, and consistency at room temperature?

Clear mobile liquid; pale yellow to dark yellow-brown; thin-to-slightly viscous; optical rotation -2° to +1°; spec density 1.010-1.030 / RI 1.572-1.585, tighten to GB/ChP intervals for food/pharma.

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