The Collagen Question
As people grow older, the body makes less of this protein. However, taking a supplement does not necessarily reverse signs of aging, according to a dermatologist.
What is Collagen?
Collagen is the most abundant structural protein in the human body, forming much of the supportive "scaffold" in skin, tendons, ligaments, cartilage, and bone. In skin, collagen fibers help provide strength and resilience.
What Are Collagen Supplements?
Collagen supplements are oral products made from animal-derived collagen (commonly bovine, porcine, chicken, or marine sources). Many are formulated as "hydrolyzed collagen" (collagen peptides), meaning the protein has been prebroken into smaller fragments intended to be easier to digest and absorb.
These supplements are often marketed with claims about improving elasticity, hydration, or reducing wrinkles, but evidence and quality can vary widely. But do they really work?
The Clinical Evidence
Expert Perspective
Dr. Farah Moustafa, MD
Assistant Professor, Tufts University School of Medicine
"Oral collagen supplements are not currently recommended as a treatment for skin aging, though they may be used alongside other options that are more effective and better supported by research."
| Research Aspect | Finding |
|---|---|
| Quality of Studies | Low-quality studies show benefits; high-quality studies show no benefit |
| Funding Bias | Pharmaceutical-funded studies more likely to report positive results |
| AAD Recommendation | Not currently recommended as primary treatment for skin aging |
| Safety Concerns | Marine sources may contain methylmercury contamination |
How Collagen Functions in the Body
Dr. Moustafa continues: "Collagen is a protein found throughout the body, including in skin, muscles, bones, and connective tissues. As we age, our body's natural collagen production slows down, leading to signs of aging like wrinkles, sagging skin, and joint discomfort."
Critical Point
But collagen needs to be broken down to be absorbed, so consuming it does not actually provide collagen to the parts of the body that might need it.
Safety & Regulation Concerns
Contamination Risk
Oral collagen supplements made from marine sources (seafood) run the risk of being contaminated with methylmercury.
Lack of Regulation
Supplements are not checked for safety or effectiveness before entering the marketplace.
American Academy of Dermatology Warning
Most oral collagen supplements currently in the marketplace lack third-party verification and do not have clear ingredient information.
Proven Ways to Support Collagen
Nutrition
A healthy dietary pattern provides your body with the nutrients necessary to build its own collagen. Get adequate protein and include vitamin C-rich foods.
Sun Protection
Using sunscreen to protect against UV damage helps preserve collagen and prevent its breakdown.
Topical Retinoids
Regular use of a topical retinol/retinoid is proven to support collagen production and skin health.
Vitamin C-Rich Foods for Collagen Support
- Strawberries
- Kiwis
- Red bell peppers
- Citrus fruits
The Bottom Line
While collagen supplements are popular and heavily marketed, current high-quality scientific evidence does not support their use as a primary treatment for skin aging. Dermatologists recommend focusing on proven strategies: adequate nutrition with protein and vitamin C, daily sunscreen, topical retinoids, and avoiding smoking.
These evidence-based approaches support your body's natural collagen production and prevent breakdown more effectively than oral supplementation.
Source
Original research and expert commentary from: SciTechDaily - Why Dermatologists Aren't Recommending Collagen Supplements
Expert commentary provided by Dr. Farah Moustafa, MD, Assistant Professor at Tufts University School of Medicine and Dermatologist at Tufts Medical Center