Collagen supplements have become one of the fastest-growing categories in the health and beauty market. But with so many types and formats available, understanding what you're buying is essential for getting real results.
What Is Collagen and Why Does It Matter?
Collagen is the most abundant protein in your body, making up about 30% of total protein. It provides structural support for skin, bones, cartilage, tendons, and ligaments. After age 25, your body's collagen production decreases by approximately 1% per year, leading to wrinkles, joint stiffness, and weaker connective tissues.
Types of Collagen
Type I: Found in skin, bones, tendons, and ligaments. The most abundant type and the primary target for anti-aging supplementation.
Type II: Found in cartilage. Most relevant for joint health and conditions like osteoarthritis.
Type III: Found in skin, muscles, and blood vessels. Often paired with Type I for skin health benefits.
Hydrolyzed Collagen vs. Undenatured
Hydrolyzed collagen (collagen peptides) has been broken down into smaller molecules for easier absorption. It's the most common form in supplements and has the most clinical evidence for skin and general connective tissue benefits.
Undenatured Type II collagen works differently — it modulates the immune system to reduce the inflammatory attack on joint cartilage. It's taken in much smaller doses (40mg vs. 10g for hydrolyzed) and is specifically for joint health.
What the Research Shows
Skin: Multiple randomized controlled trials show that 2.5-10g of hydrolyzed collagen daily for 8-12 weeks significantly improves skin elasticity, hydration, and wrinkle depth.
Joints: Both hydrolyzed collagen and undenatured Type II collagen show benefits for joint pain and function. European products like those from Extrifit deliver gelatin collagen in convenient capsule formats specifically targeting joint health.
Bones: Emerging evidence suggests collagen supplementation may improve bone mineral density, particularly when combined with calcium and vitamin D.
Maximizing Collagen Absorption
- Take on an empty stomach or between meals for best absorption
- Combine with vitamin C, which is essential for collagen synthesis
- Consistency matters more than timing — take it daily
- Give it time — expect visible results after 8-12 weeks
Food Sources
Bone broth, chicken skin, fish skin, and gelatin are natural collagen sources. However, the concentrations are lower and less standardized than supplements. A diet rich in vitamin C (citrus, berries, peppers) and zinc (nuts, seeds, legumes) supports your body's own collagen production alongside supplementation.