In short: the cinnamon grades here are separated by which marker family the certificate declares — procyanidins, flavones, or total polyphenols — all assayed by UV. Two grades state only genus-level botanical identity (Cinnamomum L.) rather than the species, which is worth knowing if your registration needs a species name.
Botanical identity and general specification
| Botanical identity | Cinnamomum cassia Presl on standardised grades; two grades state genus-level Cinnamomum L. |
|---|---|
| Plant part | Bark |
| Marker families | Procyanidins, flavones and polyphenols — three different UV markers |
| Shelf life | Two years when stored properly |
Compare Available Grades
4 commercial grades are listed below with their declared marker or ratio, the assay method, a representative batch and the routine physical parameters.
| Grade | Plant part | Specification | Method | Representative batch | Particle size | Loss on drying | Sulphated ash |
|---|---|---|---|---|---|---|---|
| Cinnamon Bark Extract Powder 30% Polyphenols | Bark | Polyphenols 30% by UV (result 30.33%) | UV | LXRG240705 | 98% through 80 mesh | ≤ 5.0%; result 3.51% | ≤ 5.0%; result 4.12% |
| Cinnamon Bark Extract Powder 8% Flavones | Bark | Flavones 8% by UV (result 8.13%) | UV | LXRGHT191124 | 98% through 80 mesh | ≤ 5.0%; result 3.97% | ≤ 5.0%; result 3.88% |
| Cinnamon Bark Extract Powder 5% Procyanidins | Bark | Procyanidins 5% by UV (result 5.07%) | UV | LXRG200415 | 98% through 80 mesh | ≤ 5.0%; result 3.82% | ≤ 5.0%; result 3.69% |
| Cinnamon Bark Powder | Bark | Identity and physical specification (result complies); no extract ratio or marker assay stated | Identity / physical | LXRG200618 | 98% through 80 mesh | ≤ 12.0%; result 10.62% | ≤ 8.0%; result 6.44% |
Cinnamon Bark Extract Powder 30% Polyphenols
Cinnamon Bark Extract Powder 30% Polyphenols is a Fine reddish-brown powder supplied as follows: Polyphenols 30% by UV (result 30.33%), determined by UV. The representative batch is LXRG240705, milled to 98% through 80 mesh. Loss on drying is ≤ 5.0%; result 3.51% and the ash parameter is ≤ 5.0%; result 4.12%.
Botanical identity for this grade is Cinnamomum cassia Presl on standardised grades; two grades state genus-level Cinnamomum L.; the plant part is Bark.
Cinnamon Bark Extract Powder 8% Flavones
Cinnamon Bark Extract Powder 8% Flavones is a Fine brick-red powder supplied as follows: Flavones 8% by UV (result 8.13%), determined by UV. The representative batch is LXRGHT191124, milled to 98% through 80 mesh. Loss on drying is ≤ 5.0%; result 3.97% and the ash parameter is ≤ 5.0%; result 3.88%.
Botanical identity for this grade is Cinnamomum cassia Presl on standardised grades; two grades state genus-level Cinnamomum L.; the plant part is Bark.
Cinnamon Bark Extract Powder 5% Procyanidins
Cinnamon Bark Extract Powder 5% Procyanidins is a Fine red-brown powder supplied as follows: Procyanidins 5% by UV (result 5.07%), determined by UV. The representative batch is LXRG200415, milled to 98% through 80 mesh. Loss on drying is ≤ 5.0%; result 3.82% and the ash parameter is ≤ 5.0%; result 3.69%.
Botanical identity for this grade is Cinnamomum cassia Presl on standardised grades; two grades state genus-level Cinnamomum L.; the plant part is Bark.
Cinnamon Bark Powder
Cinnamon Bark Powder is a Fine reddish-brown powder supplied as follows: Identity and physical specification (result complies); no extract ratio or marker assay stated, determined by Identity / physical. The representative batch is LXRG200618, milled to 98% through 80 mesh. Loss on drying is ≤ 12.0%; result 10.62% and the ash parameter is ≤ 8.0%; result 6.44%.
Botanical identity for this grade is Cinnamomum cassia Presl on standardised grades; two grades state genus-level Cinnamomum L.; the plant part is Bark.
Grade comparison: cinnamon bark extract powder
| Your requirement | Grade to specify | Why |
|---|---|---|
| Your claim refers to polyphenols | 30% Polyphenols | Declared as total polyphenols by UV |
| Your claim refers to flavones | 8% Flavones | Declared as flavones by UV — a narrower group than total polyphenols |
| Your claim refers to procyanidins | 5% Procyanidins | Declared as procyanidins by UV |
| You need whole bark, not an extract | Cinnamon Bark Powder | No ratio or marker is declared; sold on identity and physical specification |
Buyer Decision Guide
Work through these in order — each step narrows the next:
- Start from the claim, not the percentage. Identify the marker your label or customer specification names. A grade declaring a different marker is a different product, whatever its headline number.
- Fix the assay method in writing. UV and HPLC results are not interchangeable for the same material. State the method your specification requires.
- Ask for the batch, not the sheet. A specification describes a grade; the COA describes the batch you will receive. Require the batch number on the packing list.
- Check the physical parameters too. Loss on drying and the ash determination reveal process consistency. A result far outside the representative range is worth questioning even if the marker is on target.
- Confirm mesh size against your process. Particle size affects blending, tabletting and hydration. It can usually be adjusted if stated up front.
Qualification and COA Review
Every grade on this page is produced at the same certified manufacturing site, and each batch is released against its own certificate of analysis. When you review the COA, confirm four things: the batch number matches your order documents; the assay method is the one you specified; the marker result sits inside the declared limit; and the physical parameters are reported rather than left blank.
For first orders, requesting a retention sample alongside the shipping documents makes incoming inspection considerably easier.
Certification coverage for this product line
Botanical extract powders in this range are produced at the certified Zhashui site of Shaanxi Longsheng Biotechnology Co., Ltd., which holds five third-party-issued certificates: FSSC 22000 (certificate CN26/00005265, issued by SGS United Kingdom Ltd, valid 13 Jul 2026 – 12 Jul 2029), ISO 22000:2018 (CN26/00005266, issued by SGS United Kingdom Ltd, valid 13 Jul 2026 – 12 Jul 2029), SGS cGMP (CN26/00005948, valid 12 Aug 2026 – 12 Aug 2027), Star-K Kosher Pareve (account NCZSI67Q, valid through 31 Mar 2027) and Halal (3391260000, issued by Shandong Halal Certification Service, valid 28 Jun 2026 – 25 Jun 2029). The original certificate documents are published on the certificate register for Shaanxi Longsheng Biotechnology.
Frequently Asked Questions
Why do the cinnamon grades declare different markers at different percentages?
Because they are standardised against different marker families. Total polyphenols, flavones and procyanidins are three separate UV determinations, and a larger group (polyphenols) will naturally read higher than a narrower sub-group (procyanidins). A 30% polyphenols grade and a 5% procyanidins grade are not comparable on the number alone.
Two grades state Cinnamomum L. rather than a species name — why does that matter?
It matters for documentation, not necessarily for quality. Genus-level identity means the certificate identifies the material as Cinnamomum but does not commit to a species such as Cinnamomum cassia. If your registration, customer specification or label requires a species name, ask for botanical identity to be confirmed in writing.
Is the marker assayed by HPLC or UV?
The standardised cinnamon grades here are assayed by UV. This matters because UV returns a combined absorbance for a group of related compounds, whereas HPLC resolves individual constituents. Do not compare a UV percentage directly against an HPLC percentage from another supplier.
What is the difference between procyanidins and total polyphenols?
Polyphenols is the broader category, and procyanidins are one class within it. A grade declared as 30% total polyphenols is not equivalent to a grade declared as 30% procyanidins — the second would be a much more concentrated specification. Always read the marker name, not only the percentage.
Why does the whole bark powder have a much wider moisture limit?
The bark powder is a milled botanical rather than a purified extract, and its specification reflects that: loss on drying is limited to 12.0% and ash to 8.0%, against 5.0% on the extract grades. The representative results sit inside those wider limits.
Can you supply a 10:1 cinnamon extract?
Ratio grades including 10:1 are part of the cinnamon range and are available on request. Ask for the specification and a representative batch COA for the ratio grade you need so that the declared ratio and physical limits are confirmed in writing.
Which grade should I choose for a capsule?
Choose from the claim you intend to make. If the claim names polyphenols, specify the polyphenol grade; if it names procyanidins, specify that marker. Capsule fill weight then determines whether a higher or lower declared concentration is more economical.
How do I compare two cinnamon extract quotations?
Compare the marker name first, then the assay method (UV or HPLC), then the representative batch result and the physical parameters. Two quotations that both say “cinnamon extract 20%” can be different products if the marker and method differ.
Request a Grade Comparison
Send the grade you are considering, your target marker value, the method you need it declared by, and your destination market. We will reply with the matching specification, a representative batch COA and a sample offer.
Practical next step: send your requirement as an inquiry, or write to gshuai@long-bio.com.
Related product page
This specification range sits alongside the individual grade page Cinnamon Bark Extract Powder 8% Flavones, which carries its own certificate of analysis.