Collagen supplement meta review

Daily hydrolyzed collagen may modestly improve skin appearance and elasticity, though results are not guaranteed and the evidence has limitations. Studies commonly used 5–15 grams daily; other studies and dermatology advice cited doses of 15–30 grams. 1 2

• Taking collagen with vitamin C: Vitamin C may support collagen’s effects; the cited discussion mentions combining collagen with vitamin C, including a suggested 500–1,000 mg in one recommendation. 3 4
• Bone broth: Beef or chicken bone broth is a dietary source of collagen. 5
• Possible mechanisms: Collagen peptides may increase fibroblast mobility, which could contribute to skin effects. A dermatologist also described a possible hydration-related plumping effect. Potential anti-inflammatory effects were mentioned, but the mechanism was described as unclear. 6 7