Collagen Type II
Type II is a supplemental form of collagen. A structural protein family found in connective tissue; supplements often use hydrolyzed "peptides. 20 studies on collagen are available in our database. Learn how collagen type ii compares to other forms.
Content reviewed by ZYNAVA Research Team · Last updated February 2026 · Editorial policy
What Is Collagen Type II?
Type II is a supplemental form of collagen. A structural protein family found in connective tissue; supplements often use hydrolyzed "peptides." Type I/III are common; Type II is used in some joint formulas.
How Collagen Type II Compares
Collagen is also available as Hydrolyzed Collagen, Type I & III, Marine.
About Collagen
A structural protein family found in connective tissue; supplements often use hydrolyzed "peptides."
Find Collagen Type II Supplements
Compare collagen type ii products and explore your options.
Other Collagen Forms
Compare different forms of collagen and explore your options:
Research on Collagen
Our database contains 20 peer-reviewed studies on collagen:
FAQ: Collagen Type II
What is Collagen Type II?
Type II is a supplemental form of collagen. A structural protein family found in connective tissue; supplements often use hydrolyzed "peptides." Type I/III are common; Type II is used in some joint formulas.
How does Collagen Type II compare to other forms?
Collagen is also available as Hydrolyzed Collagen, Type I & III, Marine.
What other forms of Collagen are available?
Collagen is also available as Hydrolyzed Collagen, Collagen Type I & III, Collagen Marine, Collagen Bovine. The best form depends on individual absorption, tolerance, and specific needs.
Natural Food Sources of Collagen
Understanding the natural food sources of collagen provides valuable context for supplementation decisions. For many people, a well-planned diet can contribute meaningfully to their collagen intake, though individual needs may vary.
- Bone broth — Simmering bones for 12-24 hours extracts collagen and gelatin into the broth
- Chicken skin — A natural source of type II collagen
- Fish skin — Contains type I collagen, which is similar to human skin collagen
- Pork skin — Used in traditional dishes and as a source of type I and III collagen
- Gelatin — Cooked collagen used in various foods and desserts
Dietary Context
Collagen is the most abundant protein in the body, making up about 30% of total protein. Unlike most nutrients, collagen is not found in plant foods — it is exclusive to animal connective tissues, skin, and bones. The body synthesizes its own collagen using amino acids (particularly glycine, proline, and hydroxyproline) along with vitamin C as a cofactor.
Absorption: Food vs. Supplements
Dietary collagen is broken down into amino acids and peptides during digestion. Hydrolyzed collagen supplements (collagen peptides) are pre-broken-down for easier absorption. Vitamin C is essential for the body's own collagen synthesis, making it an important complementary nutrient.
Practical Tips
- Bone broth is a traditional way to get dietary collagen — longer cooking times extract more
- Vitamin C-rich foods support the body's own collagen production
- Plant foods don't contain collagen but provide the building blocks (amino acids and vitamin C) for collagen synthesis
How to Take Collagen Type II
Getting the most from collagen type ii supplementation involves more than just choosing the right product. When and how you take it can significantly affect absorption and effectiveness.
Best time to take: On an empty stomach or between meals for best absorption
With or Without Food
Collagen peptides can be taken with or without food, but absorption may be slightly better on an empty stomach. Collagen dissolves easily in both hot and cold liquids.
How Often
Once daily. Most studies showing benefits use 2.5-15 grams daily for 8-12 weeks.
Practical Tips
- Hydrolyzed collagen (collagen peptides) is pre-broken-down for better absorption than gelatin
- Mix into coffee, smoothies, or water — collagen peptides are virtually tasteless
- Pair with vitamin C, which is essential for the body's own collagen synthesis
- Allow 8-12 weeks of consistent use to see skin, joint, or nail benefits
Important Interactions
- Generally very well-tolerated with no known significant drug interactions
- Marine collagen may not be suitable for people with fish allergies
- May cause mild digestive symptoms (bloating, fullness) when starting
This is not an exhaustive list of interactions. Always consult a healthcare provider or pharmacist about potential interactions with your specific medications and health conditions.
Where to Find Collagen Type II Supplements
If you are considering collagen type ii supplementation, choosing a quality product from a reputable retailer is an important step. Here are some trusted options where you can browse and compare collagen type ii supplements.
How to Choose a Quality Collagen Type II Supplement
- Verify the expiration date and that the product is stored appropriately
- Research the brand — established companies with transparent testing are generally more reliable
- Consider subscription options for supplements you plan to take long-term — many retailers offer discounts
- Check the other ingredients list for potential allergens (soy, gluten, dairy, nuts)
To explore supplements by ingredient or health goal, try our AI Supplement Advisor.
Research Highlights: Collagen Type II
Our database includes 2 clinical trials, 2 reviews, 1 meta-analysis examining collagen type ii, published between 2024 to 2025. Below are selected findings that illustrate the current state of research. These summaries are educational — not clinical recommendations — and individual outcomes may vary.
Effect of collagen supplementation on knee osteoarthritis: an updated systematic review and meta-analysis of randomised controlled trials
Published in Clin Exp Rheumatol. Study from 2025. Comprehensive analysis combining multiple studies.
Source: View full study on PubMed
Can good sleep quality enhance the benefits of oral collagen supplementation in the prevention of skin aging? A brief report
Published in Arch Dermatol Res. Study from 2025.
Source: View full study on PubMed
Collagen supplementation in metabolic syndrome: a narrative review unraveling the biological mechanisms and effects
Published in Nutr Res Rev. Study from 2025.
Source: View full study on PubMed
Efficacy of combined undenatured type II collagen and hydrolysed collagen supplementation in knee osteoarthritis: a randomised controlled trial
Published in Sci Rep. Study from 2025.
Source: View full study on PubMed
The Effects of Collagen Peptides as a Dietary Supplement on Muscle Damage Recovery and Fatigue Responses: An Integrative Review
Published in Nutrients. Study from 2024.
Source: View full study on PubMed
The research summaries above are based on published peer-reviewed studies and are provided for informational purposes only. Study findings may not apply to all individuals, and the presence of a study summary does not constitute an endorsement of collagen type ii for any specific health condition. Always consult a qualified healthcare professional before making decisions based on research findings.
Important Information
Our Commitment to Editorial Independence
ZYNAVA maintains strict editorial independence from supplement manufacturers, retailers, and advertisers. Our research summaries are based on peer-reviewed studies indexed in databases such as PubMed, Cochrane Library, and other scientific repositories. We do not accept payment from supplement brands to feature, promote, or favorably review their products. Our evidence grading system applies consistent criteria to all supplements regardless of commercial relationships.
Every supplement page on ZYNAVA is generated using the same data-driven methodology. We do not cherry-pick studies to support a predetermined conclusion. When evidence is mixed or insufficient, we say so clearly. Our editorial policy requires transparent disclosure of study limitations, conflicts of interest, and the overall quality of available evidence.
Allergens, Fillers, and Common Supplement Additives
Supplement products contain more than just active ingredients. The "Other Ingredients" section of a supplement label lists inactive components used in manufacturing, including fillers to bulk up capsules, binders to hold tablets together, lubricants to prevent ingredients from sticking to machinery, coatings for easier swallowing, and preservatives to extend shelf life. Common additives include magnesium stearate, silicon dioxide, cellulose, rice flour, and various forms of gelatin.
For individuals with food allergies or sensitivities, checking the other ingredients list is essential. Many supplements contain common allergens such as soy, dairy, wheat, shellfish, or tree nuts — either as active ingredients or as processing aids. Gelatin capsules are derived from animal sources and are not suitable for vegetarians or vegans. When using ZYNAVA, compare allergen statements on listings and always verify details on the product label before you buy.
This content is for general educational purposes only and is not intended as medical advice. Consult a healthcare professional before starting any supplement. See our full disclaimer and affiliate disclosure.