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China Surfactant Detergent & Cosmetics ›› 2020, Vol. 50 ›› Issue (4): 263-268.doi: 10.3969/j.issn.1001-1803.2020.04.009

• Development and application • Previous Articles     Next Articles

Study on the anti-aging efficacy of the palmitoyl oligopeptide composition

ZHOU Chun-xia,ZHOU Li-dan,LU Yi-na()   

  1. Shanghai JAKA Biotech Co., Ltd., Shanghai 200241, China
  • Received:2019-09-03 Revised:2020-03-05 Online:2020-04-22 Published:2020-04-24
  • Contact: Yi-na LU E-mail:inna@greaf.com.cn

Abstract:

The anti-aging effect of Rejutime PTC, a peptide composition composed of hydrolyzed collagen and palmitoyl oligopeptide, was evaluated through different methods. The results show that PTC with a mass fraction of 0.125% to 0.5% could significantly promote cell proliferation and up-regulate the synthesis and secretion of type I, type III collagens and fibronectin after 24 to 72 h treatment on the aging model of fibroblasts (HDF-a). On the NHEK keratinocytes aging model, 0.063% and 0.25% of PTC also significantly promote cell proliferation after treatment for 24 to 72 h. For the four constituent proteins of the dermal epidermal junction (DEJ), namely laminin-5, integrin β1, type VII collagen and type IV collagen, PTC increase their synthesis and secretion at concentrations from 0.063% to 1%. PTC, as a new cosmetic additive, can play a role in delaying skin aging for skin epidermis, DEJ and dermis.

Key words: cosmetic additives, palmitoyl oligopeptide composition, skin aging

CLC Number: 

  • TQ658