• Corpus ID: 74659492

Clinical Effects of Ingesting Collagen Hydrolysate on Facial Skin Properties―A Randomized, Placebo—controlled, Double—blind Trial―

  title={Clinical Effects of Ingesting Collagen Hydrolysate on Facial Skin Properties―A Randomized, Placebo—controlled, Double—blind Trial―},
  author={Fumihito Sugihara},
Objectives The objective of this research was to investigate the effectiveness of daily ingestion of a specific collagen hydrolysate(CH), which contains prolylhydroxyproline(Pro-Hyp)and hydroxyprolylglycine(Hyp-Gly), on facial skin properties. Methods In this randomized, placebo-controlled, double-blind trial, 56 women aged 30-55 years were randomized to receive 2.5 g of CH or 5 g of placebo once daily for 8 weeks, with 28 subjects assigned to each group. The hydration, elasticity and roughness… 
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