Description
COA-BACKED PEPTIDE INGREDIENT
Eggshell Membrane Peptide from Gallus gallus eggshell membrane
Eggshell Membrane Peptide is supplied as a hydrolysed, low-molecular-weight peptide for B2B nutrition, beverage and supplement projects. Specification is defined by source material, protein content and molecular-weight distribution.

COA-Backed Specification
| Source material | Gallus gallus eggshell membrane |
|---|---|
| Peptide form | Hydrolysed eggshell membrane peptide |
| Form and colour | Fine off-white to light-yellow powder |
| Assay | Protein >=80.0% on dried basis; low-molecular-weight peptide fraction |
| Method | HPLC |
| Particle size | 98% through 80 mesh |
| Loss on drying | <=5.0% |
| Ash | <=5.0% |
| Heavy metals | Within the limits of the approved specification |
| Microbiological limits | Within the limits of the approved specification |
| Representative batch | LXDK260406 |
| Manufacture date | 6 Apr 2026 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.

Buyer Decision Guide
Peptides are specified by source, degree of hydrolysis and molecular-weight distribution. Confirm the protein content basis, the assay method and the MW cut-off, because two products described by the same name can behave very differently in solubility and taste.
- Confirm the source material declaration
- Check protein content and the assay method
- Review molecular-weight distribution data
- Confirm solubility, taste and hygroscopicity for your format

How This Grade Differs
Eggshell Membrane Peptide is hydrolysed from Gallus gallus eggshell membrane and is listed at protein >=80.0% on a dried basis. Its source tissue differs from the linked chicken-cartilage type II collagen grade; compare both current batch specifications before substitution.
Compare these related grades before approval:
For a substitution review, compare animal source tissue, dried-basis protein content, peptide specification, analytical method and the current offered-batch COA.
Application Areas
- Protein and peptide beverage powders
- Supplement sachets and capsules
- Clinical and sports nutrition
- Private-label nutrition projects
Packaging and Delivery
- Evaluation sample typically 10-20 g, subject to stock
- Regular MOQ typically 1 kg
- 1 kg foil bag or 25 kg fibre drum with inner food-grade liner
- Custom packing and private-label options subject to confirmation
- Typical lead time 7-15 working days after deposit
Quality and Documentation
Representative batch LXDK260406 supports the specification table above. Use the cited record for preliminary comparison and request the offered-lot COA for final technical approval. Batch COA, specification sheet, agreed third-party testing and export documents are available for buyer verification.
Frequently Asked Questions
What shelf life and storage conditions apply?
Two years when stored properly, kept sealed in a dry place away from light and heat.
Can the COA be matched to the lot you ship?
Yes. The certificate is issued for the shipped lot, which is the batch LXDK260406 referenced on the specification.
Which impurity limits are declared?
Moisture and ash are held within the approved specification limits, with heavy metals and microbiology tested on every lot.
How does the material behave in your process?
It is supplied as Fine off-white to light-yellow powder at 98% through 80 mesh, so bulk density and flow are confirmed against your process before the first order.
Which molecular weight profile applies?
The declared specification is Protein >=80.0% on dried basis; low-molecular-weight peptide fraction, and the peptide distribution is reported with the batch.
Are you a manufacturer or a trading company?
LongBio is Shaanxi Longsheng Biotechnology Co., Ltd., a direct manufacturer of botanical extracts and functional ingredients integrating R&D, production and export support. Factory review can be arranged by video or an on-site visit.
What packing options are available?
Standard packing is a sealed food-grade inner liner inside an export carton or fibre drum. Pack size, labelling and private-label artwork are agreed in the written specification.
Which documents come with the shipment?
Batch COA, specification sheet, agreed third-party testing where required, commercial invoice, packing list, certificate of origin and transport documents. The exact set is confirmed against the product and destination market.
Request COA, Sample or Quotation
Send your target specification, application, order quantity, destination country and required test limits.
Get the current batch COA, a sample or a quotation




