Stay Strong+ 4-in-1 Collagen 30 Chewables by Metagenics delivers four clinically studied collagen types in a single daily berry-flavored chew, designed to support joint cartilage integrity, tendon and ligament health, skin structure, and connective tissue collagen synthesis.
Key Benefits of Four Targeted Collagen Types and Vitamin C Ingredients
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UC-II Undenatured Collagen Type II (20 mg per Chew) - A clinically studied, undenatured collagen that maintains its natural structure through digestion to reach the gut, where it supports immune-mediated joint cartilage health and promotes joint comfort, with research showing a difference in as little as 7 days in clinical trials
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Fortigel Collagen Peptides (125 mg per Chew) - Specialized bioactive collagen peptides that support the body's natural collagen synthesis within joint cartilage tissue, promoting joint comfort and cartilage integrity
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Tendoforte Collagen Peptides (125 mg per Chew) - Targeted collagen peptides formulated to support collagen production in tendon and ligament tissue, two connective tissue structures that most collagen formulas do not specifically address
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Verisol Collagen Peptides (125 mg per Chew) - Bioactive collagen peptides that support the body's natural collagen production in skin and nail tissue, promoting skin structure and nail integrity
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Vitamin C as Ascorbic Acid (25 mg per Chew / 50 mg Daily) - An essential cofactor in collagen biosynthesis that supports the body's ability to form and maintain collagen in connective tissue, skin, cartilage, tendons, and ligaments
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Joint Flexibility and Movement Support - The combined collagen complex supports joint flexibility and ease of movement during daily activity by maintaining healthy cartilage and connective tissue structure
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Convenient Individually Wrapped Chew Format - Berry-flavored chewable format requires no water, no mixing, and no preparation, supporting consistent daily use at home or on the go
Why This Formula Matters
Most collagen supplements rely on a single collagen type, which limits their scope to one tissue target. Stay Strong+ 4-in-1 addresses this by combining four distinct, trademarked collagen ingredients, each with its own clinical research profile and tissue specificity, covering joints, tendons, ligaments, skin, and nails in a single daily serving. The inclusion of UC-II undenatured collagen is particularly notable, as its mechanism of action differs from hydrolyzed peptides: it works through gut-associated immune pathways rather than direct tissue incorporation, providing a complementary and additive approach to joint cartilage support alongside the Fortigel peptides.
Dietary & Quality Standards
- Non-GMO
- Gluten-free
- Four trademarked collagen ingredients: UC-II, Fortigel, Tendoforte, and Verisol
- Vitamin C included to support collagen biosynthesis
- Individually wrapped berry-flavored chew
- No pills, no powder, no preparation required
- 30 chews per box (15-day supply at 2 chews daily)
Frequently Asked Questions
What makes UC-II different from hydrolyzed collagen peptides?
UC-II is an undenatured type II collagen that retains its native three-dimensional structure, unlike hydrolyzed collagen peptides which are broken down into smaller fragments. UC-II works through a gut-associated immune mechanism, where intact collagen fragments interact with immune cells in the gut to support joint cartilage health. This is a distinct mechanism from the direct tissue incorporation pathway of hydrolyzed peptides like Fortigel, making the two approaches complementary rather than redundant.
Why does this formula include four different collagen types?
Different collagen types and peptide sequences have affinity for different tissue targets. Fortigel supports joint cartilage, Tendoforte targets tendons and ligaments, Verisol supports skin and nails, and UC-II works through immune-mediated joint cartilage support. Combining all four in one formula provides broader connective tissue coverage than any single collagen type can deliver.
How should this product be taken?
Take one chew twice daily with food, or as directed by your healthcare practitioner. Each chew is individually wrapped for convenience. Do not use if pregnant or nursing. If you are taking medications, consult your healthcare provider before use.
How long does it take to notice a difference in joint comfort?
In clinical research on UC-II, participants began to notice a difference in joint comfort in as little as 7 days. Individual results will vary based on baseline status, activity level, and consistency of use. Consistent daily use over several weeks is recommended to support cumulative connective tissue benefits.
Is this product suitable for vegetarians or vegans?
No. This product contains collagen derived from animal sources and is not suitable for vegetarians or vegans. Review the full ingredient list if you have specific dietary restrictions or allergen concerns.
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.
