Immune & Gut · Specialty
Elm Bark Extract
Ulmus rubra · Inner bark
Chinese name: 榆树皮提取物
Slippery elm inner-bark extract for gut and traditional wellness formulas, supplied as a 4:1 powder.
Reviewed October 2026 · Specification PDF ↓ · Method: See the method library →
4:1
Extract ratio
1 kg
Minimum order
1–7 days
Indicative lead time
1 kg foil pouch
Standard packing
Specification
What the certificate will report
| Extract ratio | 4:1 |
|---|---|
| Source / part | Inner bark |
| Extraction | Water extraction |
| Particle size | 80 mesh, other sizes on request |
| Marker compounds | Polysaccharides, mucilage |
| Appearance | Light brown to brown powder |
| Solubility | Dispersible; mucilaginous |
| Standard packaging | 1 kg foil pouch · 25 kg fiber drum · 5 kg carton |
| Minimum order | 1 kg |
| Indicative lead time | 1–7 days |
The method behind the marker value matters as much as the number. Read how it works, what it proves, and where it stops.
Method guide →Specifications are confirmed in writing before quotation. Lead times start after specification and packaging approval, not after the first email.
Application
Where this grade fits
- Immune capsules
- Gut wellness blends
- Functional beverages
- Food applications
Available forms
Packing options
Application guides
Dietary Supplements · Functional Food & Beverage · Pet Supplements
What to confirm before ordering
- Confirm inner-bark material and the mucilage/viscosity specification.
- The powder swells in water; taste and mouthfeel should be tested in the final matrix.
Documentation
Released with every lot
- Batch-specific certificate of analysis against the agreed specification
- Technical data sheet with source, part, carrier, and storage
- Safety data sheet in the 16-section format
- Allergen and GMO statements signed for the batch
- Origin and traceability record linking herb lot and manufacturing lot
- Halal, Kosher, or organic certificates where the grade and facility are covered
Buyer questions
Practical answers
What is Elm Bark Extract standardized to, and how is it measured?
Extract ratio: 4:1. The marker set is Polysaccharides, mucilage. The primary method is See the method library; the batch COA reports the result against the agreed specification. Other ratios, marker ranges, carriers, and mesh sizes can be quoted as a custom grade after a feasibility review.
Which source and plant part are used for Elm Bark Extract?
Ulmus rubra; Inner bark. The source and part are stated on the specification and the COA because they are release parameters, not marketing descriptions. If the label names a different part, confirm it before the first order.
Which applications does Elm Bark Extract fit?
Immune capsules, Gut wellness blends, Functional beverages, Food applications. The grade is selected against the finished format, dose, and destination market; a sample and application brief are more useful than a generic catalogue comparison.
Which documents are supplied with the batch?
A batch-specific COA, technical data sheet, SDS, allergen and GMO statements, and an origin record. Third-party heavy-metal, pesticide, or microbiological reports can be arranged, as can Halal, Kosher, or organic certificates where the grade is covered.
What is the minimum order, lead time, and sample size?
1 kg minimum, packed in a 1 kg foil pouch; bulk drums are available as quantities scale. 1–7 days after specification and order confirmation. Samples are typically 100–500 g with their own COA, usually within 3–5 business days after the specification is agreed.
Related specifications
Elsewhere in immune
Elderberry Extract
Sambucus nigra · Fruit
5% or 10% (UV)
Astragalus Extract
Astragalus membranaceus · Root
≥40% (UV)
Andrographis Extract
Andrographis paniculata · Aerial parts
10% (HPLC)
Related reading
The questions behind this specification
How to read a botanical extract COA without being fooled
A practical line-by-line guide to the certificate of analysis: what belongs on it, which numbers actually matter, and the shortcuts that should make you ask for more.
Read the note →10:1 is not a strength: extract ratios versus standardization
What an extract ratio actually tells you, why a 10:1 powder can be weaker than a 4:1 extract, and how to write a specification that means something.
Read the note →Next step
Send the spec. We will confirm what is possible.
A competitor COA, a label claim, or a rough target is enough to start. We reply with a matched grade, documentation list, and indicative price.