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Natural Eggshell Membrane (NEM)
An eggshell-derived membrane (collagen, elastin, glycosaminoglycans, hyaluronic acid) with small but positive RCTs and a meta-analysis for reducing joint pain and stiffness in knee osteoarthritis — though most trials are single-manufacturer.
What the evidence says
Most Eggshell Membrane studies are mechanism or observational rather than RCTs that measure a clinical effect — keep findings provisional.
Most evidence is from high-quality meta-analyses and randomised trials published 2009–2024.
Based on 9 studies · 1 meta-analysis · 6 RCTs
Confidence
Moderate confidenceBy outcome
Small RCTs and one meta-analysis suggest reduced knee-osteoarthritis pain and stiffness, but trials are small, mostly single-manufacturer, and several missed their primary pain endpoints, keeping evidence emerging.
4 trials ongoing or recruiting · 11 completed on ClinicalTrials.gov
Registered trials show research momentum for Eggshell Membrane, not proof of effect — a registration is a plan, and posted results are sponsor-reported, not peer-reviewed. They are never counted toward the evidence rating above.
Browse these trials on ClinicalTrials.govClinicalTrials.gov · as of Sep 2026
Natural eggshell membrane (NEM) is the thin membrane between the eggshell and egg white, rich in collagen, elastin, glycosaminoglycans, and hyaluronic acid. Small randomized trials and a meta-analysis show it reduces joint pain and stiffness in knee osteoarthritis, often within 7-30 days, at a low 500mg daily dose.
The honest caveat: most trials are small and conducted on a single branded ingredient (NEM/Ovomet), so independent replication is limited. It's well tolerated (egg allergy aside).
Supplies collagen, elastin, glycosaminoglycans, and hyaluronic acid for joint tissue.
May reduce joint inflammatory cytokines.
How Eggshell Membrane works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.
Avoid — derived from eggshell.
No significant documented drug interactions. This possible interaction has not been individually evaluated for this supplement; its likelihood and severity are unknown. If you take an anticoagulant or antiplatelet medicine, ask a pharmacist or prescriber before using this product. Do not stop or change prescribed medicines based on this notice.
Tip: Avoid if egg-allergic
Tip: Take with food
Eggshell Membrane has an evidence score of 4.3/10 — emerging evidence based on 7 indexed studies, including 1 meta-analysis. An eggshell-derived membrane (collagen, elastin, glycosaminoglycans, hyaluronic acid) with small but positive RCTs and a meta-analysis for reducing joint pain and stiffness in knee osteoarthritis — though most trials are single-manufacturer. Representative study: PMID 39203777.
The commonly studied dose of Eggshell Membrane is 500mg natural eggshell membrane daily. Individual needs vary — start at the lower end of the range and adjust based on how you respond.
Timing is flexible for Eggshell Membrane — consistent daily use matters more than the time of day. Once daily; timing not critical.
Eggshell Membrane is generally well-tolerated and considered safe for most healthy adults at recommended doses. Reported side effects are uncommon and include allergic reaction (egg), mild GI upset. Use caution if any of these apply to you: Egg allergy; Pregnancy/breastfeeding (limited data).
PEA
Likely helpsNaturally occurring fatty acid that supports pain relief and reduces inflammation through the endocannabinoid system.
Collagen
Likely helpsHydrolyzed peptides that rebuild skin elasticity, reduce joint pain, and strengthen bone density — results build over 8-12 weeks.
MSM
Mostly mechanism / observationalOrganic sulfur donor for connective tissue repair — reduces joint inflammation and supports post-exercise recovery and flexibility.
White Willow Bark
Likely helpsNatural source of salicin (aspirin precursor) with evidence for pain relief and inflammation — gentler on the stomach than aspirin.
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Reviewed by Dr. Baher Al Hakim · Last reviewed June 2026 · evidence from 9 studies · how we score · editorial policy
This information is for educational purposes only. It is not a substitute for professional medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement or medication.
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