Collagen Supplements for Tendons

Date: December 3, 2025 | Scientifically Reviewed by Omer Matt Sermet

Strong, resilient tendons are the hidden engines behind every movement we make whether you’re lifting weights, running miles, or simply getting through your daily routine. At the core of their strength lies collagen, the structural protein that keeps tendons flexible, durable, and capable of handling intense physical stress. But when collagen levels drop due to aging or repetitive strain, tendons become vulnerable, stiff, and prone to injury. That’s why understanding how collagen supports tendon health has become essential for athletes, active individuals, and anyone seeking smoother, pain-free movement.

Collagen Supplements for Tendons

Why is Collagen Crucial for Tendon Health?

Collagen is crucial for tendon health because it provides the tensile strength and structural integrity necessary to withstand the immense forces generated during physical activity. Collagen contributes approximately 65-80% of the dry weight of tendons, as reported in a systematic review published in Amino Acids in September 2021(1). Tendons are composed of meticulously aligned collagen fibers, primarily Type I, which allow them to stretch, recoil, and efficiently transmit force from muscle to bone.

When collagen production declines due to age or is damaged by repetitive stress, tendons become weaker, less flexible, and more susceptible to injury, including conditions like tendonitis. This is where collagen supplements for tendons become beneficial. Supplementation helps provide the necessary amino acid building blocks to support the body's natural repair and synthesis of new collagen fibers, making it a key component of collagen for tendon repair.

Scientific studies suggest that collagen for tendons can significantly enhance tendon health by improving strength, elasticity, and recovery time. For instance, research indicates that providing the amino acid precursors (Glycine, Proline, Hydroxyproline) leads to increased collagen synthesis in tendons, resulting in greater mechanical strength and enhanced elasticity for better force absorption. This is why athletes taking collagen peptides often report a quicker return to training after tendon-related discomfort.

To learn more about how collagen supports the entire joint structure, including cartilage, please see our main article: Collagen for Arthritis: Natural Relief for Joint Pain and Mobility.

How to Take Collagen for Tendon Support?

For optimal tendon support, a specific regimen of collagen intake is recommended to maximize its bioavailability and effectiveness.

Recommended Dosage and Type

The most effective form for collagen for tendon repair is Hydrolyzed Collagen (Collagen Peptides), which is broken down into small, easily digestible amino acids.

Dosage: Aim for 15–20 grams of hydrolyzed collagen peptides daily.
Type: Type I Collagen is the most relevant for tendons, as it is the predominant type found in these connective tissues.
Timing: Consuming collagen approximately 30–60 minutes before exercise may be beneficial, as it increases the availability of amino acids in the bloodstream when mechanical loading (exercise) stimulates tendon repair.

The Vitamin C Connection

To ensure the collagen you consume is properly utilized, it must be paired with Vitamin C. Vitamin C is an essential cofactor for the enzymes (prolyl and lysyl hydroxylase) that stabilize the collagen triple helix structure.

Pairing: For an effective collagen with Vitamin C combination, take your collagen supplements for tendons with at least 50 mg of Vitamin C to boost collagen synthesis. This combination, particularly with tendon loading exercises, has shown a promising effect on recovery(2).

When Can I Expect Results?

Consistency is key. While initial improvements in flexibility or reduced discomfort may be noticed sooner, significant changes in tendon strength and function typically require a longer commitment:

Initial Improvements: 8–12 weeks
Significant Strength/Function Gains: 6 months of consistent daily use

For a detailed breakdown of the timeline for results, see our full guide: How Long Does It Take to See Collagen Results?

What is the best type of collagen for tendons?

Type I Hydrolyzed Collagen (Peptides) is best due to its high concentration in tendons and superior absorption.

Can collagen help with tendonitis?

Yes, collagen for tendonitis can help by providing the building blocks for tissue repair, strengthening the tendon, and improving its resilience against the inflammation and damage associated with the condition.

What should I avoid when taking collagen?

Avoid high sugar intake, as it can impair collagen's effectiveness. Ensure a balanced diet and limit inflammatory foods.

What is the best way to repair tendons?

The best way to repair tendons includes taking collagen supplements for tendons, ensuring adequate Vitamin C intake, and maintaining a balanced diet. Combining these with proper rest and rehabilitation exercises enhances tendon recovery.

Ready to support your tendons? Browse our full range of high-quality collagen supplements here: Shop All CollaVita Collagen Products

SOURCES

(1) - Khatri M, Naughton RJ, Clifford T, Harper LD, Corr L. The effects of collagen peptide supplementation on body composition, collagen synthesis, and recovery from joint injury and exercise: a systematic review. Amino Acids. 2021 Oct;53(10):1493-1506. doi: 10.1007/s00726-021-03072-x. Epub 2021 Sep 7. PMID: 34491424; PMCID: PMC8521576.

(2) - van Dam, L., Terink, R., Mensink, M. et al. The JUMPFOOD study: additional effect of hydrolyzed collagen and vitamin C to exercise treatment for patellar tendinopathy (jumper’s knee) in athletes-study protocol for a double-blind randomized controlled trial. Trials 24, 768 (2023).

Scientifically Reviewed by Omer (Matt) Sermet