Why sea collagen is better than from animal remains (pig, beef, etc)

Improvement in the Moisture Content of the Stratum Corneum
Following Weeks of Collagen Hydrolysate Ingestion

Hiroki Ohara , Kyoko Ito, Hiroyuki Iida and Hitoshi Matsumoto

Food and Health R&D Laboratories, Meiji Seika Kaisha, Ltd., Chiyoda, Sakado, Saitama


We conducted a placebo-controlled, double-blind -week study on the oral intake of either doses of
scaled collagen hydrolysate ( 2. 5g, 5g and 10g), pig skin collagen hydrolysate ( 10g) or placebo in healthy
female volunteers (mean age, 34.1 SD5.9 years). The volunteers were divided randomly into groups and
their skin condition was measured before and after ingestion. The moisture content of the stratum corneum
of the cheek showed a significant increase after weeks in all the groups taking the hydrolysates, while it
showed a dose-dependent improvement in groups taking collagen hydrolysate ( 2.5 g - 10 g). A stratified
statistical analysis of subjects years old showed significant differences in the groups taking 5g or 10g
of hydrolysates (P0 .05 ), compared with the placebo group. There were no significant differences in
transepidermal water loss, viscoelasticity or cutaneous findings between any of the groups. These results
indicate that the major change following oral intake of collagen hydrolysate is an improvement in the
moisture content of the stratum corneum. 
Nippon Shokuhin Kagaku Kogaku Kaishi Vol. , No. , ( )

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