What does the evidence say about Oral Collagen Skin Hydration Meta-Analysis?

The current Migaku evidence database contains 2 reusable source documents for Oral Collagen Skin Hydration Meta-Analysis. This answer focuses on benefits, uncertainty, and practical interpretation. - No significant difference in hydration between the 2 groups;CP significantly increased both firmness and elasticity (p < 0.001 for both). [Lei Dongyun (2026); evidence level 4] - p p p CP increased elasticity at the end of the study (= 0.017) and 4&#160;weeks after the end of the study (p = 0.027):CP increased skin hydration (< 0.001) at the end of the study;CP decreased skin roughness elasticity at the end of the study and 4&#160;weeks after the end of the study (< 0.001). [Lei Dongyun (2026); evidence level 4] - CP reduced eye wrinkle volume by 20% (p < 0.05) in addition to increase procollagen type I (65%) and elastin (18%). [Lei Dongyun (2026); evidence level 4] - 1&#8211;3 4 5 6&#8211;8 9 10 11 Cutaneous function not only dominates the cosmetic appearance but also influences cutaneous and extracutaneous conditions. [Lei Dongyun (2026); evidence level 4] - However, the evidence regarding its effectiveness in supporting skin health and improving hair, nail, and wound-healing outcomes remains heterogeneous. [Biełach-Bazyluk A (2026); evidence level 4] Evidence levels are sorting aids, not final clinical grades. Level 1 usually indicates systematic-review style evidence, level 2 indicates randomized trials or public-health guidance, and lower levels need more cautious wording. This page is educational. People with medical conditions, pregnancy, medication use, or unusual symptoms should ask a qualified clinician before changing supplements, medication, or treatment routines.