
Collagen from eggshell membrane - the protein network beneath the shell
- The eggshell membrane (ESM) is the thin, fibrous membrane of the hen's egg (Gallus gallus domesticus) between the calcified shell and the egg white. It consists of more than 90% protein and forms a dense network of structural proteins that gives the egg strength and elasticity (Nakano et al., 2003).
- Its hallmark is the natural combination of fibrous collagen types I, V and X, elastin and glycosaminoglycans such as hyaluronic acid and glucosamine (Cánovas et al., 2022) - a complex that would otherwise have to be assembled from several individual ingredients.
- Unlike conventional collagen from cattle, pigs or fish, eggshell membrane comes from a by-product of egg processing - a vegetarian collagen source that would otherwise go unused.
Ovomet® - a branded ingredient with declared contents
- Green Naturals Collagen Capsules contain 300 mg of the branded ingredient Ovomet® from the Spanish company EGGNOVO S.L. per daily dose - compared to many manufacturers that use eggshell membrane without defined active contents.
- Each capsule provides a declared 75 mg elastin, 66 mg collagen, 9 mg hyaluronic acid and 6 mg glucosamine - compared to many collagen products that contain only a single collagen peptide without accompanying structural proteins.
- Eggshell membrane is well documented: a systematic review included 7 randomised controlled trials (García-Muñoz et al., 2024), and a placebo-controlled study investigated 300 mg and 500 mg per day over 8 weeks (Cánovas et al., 2022). Ovomet® is a registered trademark of EGGNOVO S.L.
Transparency instead of promises
- There are currently no authorised health claims under EFSA for eggshell membrane, collagen, elastin, hyaluronic acid or glucosamine - which is why we give you the ingredients and the state of research instead of promises.
- No nutrient reference value (NRV) has been established for these ingredients - what counts is the declared amount of 300 mg eggshell membrane per capsule, which corresponds to the lower study dose.
- 60 capsules per jar last for 60 days - a convenient 2-month supply with just 1 capsule a day.
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Optimal time of intake
Take 1 capsule daily with sufficient liquid, ideally at the same time each day, for example in the morning with breakfast. Whether you take it in the morning or evening makes no difference - what matters is regular daily intake.
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Dosage and duration of use
Daily dose: 1 capsule (= 300 mg Ovomet® eggshell membrane powder with 75 mg elastin, 66 mg collagen, 9 mg hyaluronic acid and 6 mg glucosamine). We recommend continuous use for at least 8 weeks. The pack of 60 capsules lasts for 60 days. For adults only; pregnant women, breastfeeding women and children should consult a doctor or pharmacist before use. Contains egg.
| Quality criterion | Green Naturals® | Other manufacturers |
|---|---|---|
| Raw material | ✔ branded ingredient Ovomet® (EGGNOVO S.L.) | ✕ |
| Declared contents | ✔ 75 mg elastin, 66 mg collagen, 9 mg hyaluronic acid, 6 mg glucosamine | ✕ |
| Sensible dosage | ✔ 300 mg per daily dose, investigated in a placebo-controlled study | ✕ |
| Scientific documentation | ✔ eggshell membrane evaluated in a systematic review of 7 RCTs | ✕ |
| Purity & safety | ✔ every batch independently lab-tested, filled in Austria | ✕ |
| Formula | ✔ vegetarian, only eggshell membrane + HPMC capsule | ✕ |
| Transparency & responsibility | ✔ declared allergens (egg), no unauthorised health claims | ✕ |
| Practicality | ✔ 1 capsule daily, 60 capsules = 60 days | ✕ |
Our vision at Green Label® is to create products based on purity and transparency. Our approach is to source high-quality raw materials directly from leading producers worldwide to offer a product that is uncompromisingly committed to natural ingredients. Every capsule of our products carries the promise of purity, sustainability, and maximum effectiveness:
- Premium active ingredients as pure substances, directly from leading producers.
- Production and bottling under the highest pharmaceutical standards (GMP, ISO 22000:2018, HACCP).
- Maximum avoidance of all additives; only valuable natural substances are used.
- Vegan capsule shells, 100% free of PEG and other undesirable substances.
- Packaging in environmentally friendly, non-toxic materials for optimal aroma protection.
My name is Dr. Hari Sven Krishnan, founder of Heilpflanzenwohl GmbH and chief pharmacist.
Together with an experienced team of specialists, including Stephan Walz (pharmacist), Marie Schröder (nutritional scientist), and Dr. Christiane Gras (immunologist), we developed Green Naturals.
The result of intensive research with a clear goal: to offer you natural, highly effective products. At Heilpflanzenwohl, quality and purity come first, because we are convinced: "The best medicine comes from nature – we just need to learn how to use it correctly."
| Ingredients | 1 capsule / day | *NRV % |
|---|---|---|
| Eggshell membrane powder (Ovomet®) | 300 mg | ** |
| • of which elastin | 75 mg | ** |
| • of which collagen | 66 mg | ** |
| • of which hyaluronic acid | 9 mg | ** |
| • of which glucosamine | 6 mg | ** |
** no reference available
What is collagen?
What is collagen good for?
What is eggshell membrane collagen?
Is there vegan collagen?
Which collagen types does it contain?
What is Ovomet®?
How much collagen per day?
Should you take collagen in the morning or evening?
How long should you take collagen?
Does eggshell membrane have side effects?
Can the capsules be opened?
Is the product completely natural?
Is the product suitable during pregnancy?
Are the collagen capsules available in pharmacies?
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Sources
- García-Muñoz, A.M. et al. (2024). Efficacy of Eggshell Membrane in Knee Osteoarthritis: A Systematic Review and Meta-Analysis. Nutrients, 16(16), 2640. DOI: 10.3390/nu16162640
- Cánovas, F. et al. (2022). Randomised Clinical Trial to Analyse the Efficacy of Eggshell Membrane to Improve Joint Functionality in Knee Osteoarthritis. Nutrients, 14(11), 2340. DOI: 10.3390/nu14112340
- Yu, M. et al. (2024). Time-Dependent Effect of Eggshell Membrane on Monosodium-Iodoacetate-Induced Osteoarthritis: Early-Stage Inflammation Control and Late-Stage Cartilage Protection. Nutrients, 16(12), 1885. DOI: 10.3390/nu16121885
- Nakano, T., Ikawa, N.I. & Ozimek, L. (2003). Chemical composition of chicken eggshell and shell membranes. Poultry Science, 82(3), 510-514. DOI: 10.1093/ps/82.3.510
Ovomet® is a registered trademark of EGGNOVO S.L.
Remarks
- HACCP (Hazard Analysis and Critical Control Points) is a preventive system for ensuring food safety that identifies and assesses potential hazards in production and minimizes them through targeted control measures. The seal refers to the manufacturing process.
- This is how the grade is calculated: Grade calculation based on star ratings: 5.00 - 4.50 Very good, 4.49 - 3.50 Good, 3.49 - 2.50 Satisfactory, 2.49 - 1.50 Sufficient, 1.49 - 1.00 Poor. For the verification of ratings, no authenticity check of customer reviews is carried out. The ratings are combined from different sources, such as mail-order pharmacies and online marketplaces. Last updated: 13.10.26