{"title":"Choi 2019 — Oral collagen supplementation review","entity_type":"Source","slug":"choi-2019-oral-collagen-review","canonical_url":"https://skinknowledgebase.com/sources/choi-2019-oral-collagen-review","dates":{"date_modified":"2026-05-20","date_reviewed":"2026-05-20"},"mcp_eligible":true,"summary":"Choi 2019 reviewed randomized oral collagen studies for dermatology, supporting cautious discussion of hydration, elasticity, timelines, and supplement limits.","evidence_sources":[],"product_fact_sources":[],"related_entities":[{"title":"Can collagen drinks actually firm skin?","url":"https://skinknowledgebase.com/questions/can-collagen-drinks-actually-firm-skin"}],"body_sections":[{"heading":"Quick Summary","paragraphs":["Systematic review used for oral collagen supplementation evidence, study durations, and supplement-quality context."]},{"heading":"What Studied","paragraphs":["Systematic review of randomized placebo-controlled trials using collagen supplementation in human dermatology applications."]},{"heading":"Main Findings","paragraphs":["The review included studies using collagen hydrolysate or collagen tripeptide over multiple-week windows and discussed skin-quality outcomes and evidence limitations."]},{"heading":"Why It Matters","paragraphs":["It supports a balanced answer: possible appearance signals, but product-specific and not a guarantee of firmer skin."]}],"source_type":"peer_reviewed","original_source_url":"https://pubmed.ncbi.nlm.nih.gov/30681787/"}