American Academy of Orthopaedic Surgeons, OrthoInfo: “Articular Cartilage Repair”.
Arthritis Foundation: “Does collagen supplements help arthritis?”
Experimental and therapeutic medicine: “The beneficial effects of food supplements based on hydrolyzed collagen on skin care (review).”
Grandview Research: “Growth and Trends in the Collagen Market”.
Harvard Medical School: “Can retinoids really reduce wrinkles?”
Molecular Cell Biology: “Collagen: the fibrin of the matrix.”
Nancy E. Lane, MD, Professor of Medicine, Rheumatism and Aging, University of California, Davis.
Nazanin Saedi, MD, Associate Professor; Director of the Jefferson Center for Laser Surgery and Aesthetic Dermatology.
Nutrients: “Collagen supplements can improve skin hydration, elasticity, roughness and density: the results of a randomized, placebo-controlled, blinded study.”
Pennsylvania Medicine: “Collagen can improve your health in 4 ways from head to toe.”
Rheumatology and Therapeutics: “The Role of Collagen Derivatives in Osteoarthritis and Cartilage Repair: Systematic Research Scope and Evidence Atlas.”
For arthritis: “Collagen”.