Effects of collagen tripeptide supplement on photoaging and epidermal skin barrier in UVB-exposed hairless mice

Hee Bong Pyun, Minji Kim, Jieun Park, Yasuo Sakai, Noriaki Numata, Jin Yeong Shin, Hyun Jung Shin, Do Un Kim, Jae Kwan Hwang

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

Collagen tripeptide (CTP) is a functional food material with several biological effects such as improving dry skin and wound and bone fracture healing. This study focused on the anti-photoaging effects of CTP on a hairless mouse model. To evaluate the effects of CTP on UVB-induced skin wrinkle formation in vivo, the hairless mice were exposed to UVB radiation with oral administration of CTP for 14 weeks. Compared with the untreated UVB control group, mice treated with CTP showed significantly reduced wrinkle formation, skin thickening, and transepidermal water loss (TEWL). Skin hydration and hydroxyproline were increased in the CTP-treated group. Moreover, oral administration of CTP prevented UVB-induced MMP-3 and -13 activities as well as MMP-2 and -9 expressions. Oral administration of CTP increased skin elasticity and decreased abnormal elastic fiber formation. Erythema was also decreased in the CTP-treated group. Taken together, these results strongly suggest that CTP has potential as an anti-photoaging agent.

Original languageEnglish
Pages (from-to)245-253
Number of pages9
JournalPreventive Nutrition and Food Science
Volume17
Issue number4
DOIs
Publication statusPublished - 2012

All Science Journal Classification (ASJC) codes

  • Food Science
  • Nutrition and Dietetics

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