What it is
Undenatured Type II Collagen (UC-II) is a protein sourced from chicken sternum cartilage. It is specifically processed to maintain its native, undenatured three-dimensional structure.
Supplement · Joint & Connective Tissue
Undenatured Type II Collagen (UC-II)
40 mg · gluten-free · 60 caps
joint stiffnessjoint painreduced-joint-mobility joint
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How it works
UC-II works via oral tolerance, where small amounts of the undenatured collagen are absorbed in the gut. This process retrains the immune system to recognize the body's own collagen in the joints as non-threatening, thereby reducing inflammatory responses that can degrade cartilage.
Who should take it
Adults looking to address joint stiffness, muscle weakness, joint pain. Particularly relevant for people who prefer a targeted single ingredient and who have ruled out an underlying condition that needs medical care first.
Avoid / careful
Pregnant or nursing women without clinician oversight. People on prescription medication affecting the same pathway should consult a doctor before combining. Side effects are uncommon at recommended doses but mild GI upset can occur when starting.
When to take it
Morning
Noon
Evening
Night
How to take it
With food
Empty stomach
Before food
FAQs
Frequently asked
How long does it take to see results with UC-II?
Most users report noticeable improvements in joint comfort and stiffness within 4 to 12 weeks of consistent daily use.
Can UC-II be taken with other joint supplements?
Yes, UC-II is often layered with other joint support nutrients like glucosamine, chondroitin, or MSM, as it works via a different mechanism (immune tolerance).
What is the difference between undenatured and hydrolyzed collagen?
Undenatured Type II Collagen (UC-II) retains its native structure for oral tolerance, while hydrolyzed collagen (collagen peptides) is broken down into smaller amino acids for absorption and use as building blocks.
Research
6 studies · 2010–2024
Evidence grade
ABCD
B · B · emerging-to-moderate human evidence for joint and musculoskeletal health
From the blog
Editorial notes
SacredBod's longer take on Undenatured Type II Collagen (UC-II) — context the structured blocks above don't capture.
About Undenatured Type II Collagen (UC-II)
Undenatured Type II Collagen (UC-II) is a joint & connective tissue supplement used to support joint and musculoskeletal health. Low-dose UC-II to retrain immune joint tolerance. It is available in capsule form and dosed for adults in India and internationally. As a western-tradition entry in the SacredBod catalog, it is positioned as a single-ingredient option that can be used on its own or layered into a broader protocol. Undenatured Type II Collagen (UC-II) works through the mechanisms characteristic of its class — see the mechanism and research sections for detail. It primarily acts on the joints, muscles, bones, and effects are dose-dependent, typically becoming measurable within 4-12 weeks for joint comfort. Consistency matters more than dose size for this category.
Evidence
Undenatured Type II Collagen (UC-II) carries an evidence grade of B in the SacredBod catalog, reflecting good-but-limited human evidence for joint and musculoskeletal health. Low-dose UC-II to retrain immune joint tolerance. Benefits are cumulative rather than immediate, typically becoming noticeable within 4-12 weeks for joint comfort, and individual response varies.
Dosing
A typical dose is 40 mg, taken with food, usually in the morning. Start at the lower end, assess tolerance, and stay consistent; more is not automatically better.
Cautions
Pregnant or nursing women without clinician oversight. People on prescription medication affecting the same pathway should consult a doctor before combining. Side effects are uncommon at recommended doses but mild GI upset can occur when starting.
Who it’s for
Adults looking to address joint stiffness, muscle weakness, joint pain. Particularly relevant for people who prefer a targeted single ingredient and who have ruled out an underlying condition that needs medical care first.
As part of the Joint & Connective Tissue category, Undenatured Type II Collagen (UC-II) can be used on its own or layered into a broader protocol — see the Goes with panel for evidence-aligned pairings.
Added to your stack.