@article{87736,
  author = {Jos{\'e} Fern{\'a}ndez and Karl Rouzard and Michael Voronkov and Kristen Huber and Corey Webb and Jeffry Stock and Maxwell Stock and Joel Gordon and Eduardo P{\'e}rez},
  title = {In vitro and clinical evaluation of SIG1273: a cosmetic functional ingredient with a broad spectrum of anti-aging and antioxidant activities.},
  abstract = { BACKGROUND: Isoprenylcysteine (IPC) small molecules were identified as a new class of anti-inflammatory compounds over 20~years ago. Since then, they have been developed as novel cosmetic functional ingredients (CFI) and topical drug candidates. SIG1273 is a second generation CFI that has previously been shown to provide a broad spectrum of benefits for the skin through its anti-inflammatory and antimicrobial properties.

OBJECTIVE: To determine whether SIG1273 possesses anti-aging properties in~vitro and evaluate the tolerability and activity of SIG1273 when applied topically to human subjects.

METHODS: To model photoaging in~vitro, human dermal fibroblasts (HDFs) were exposed in culture to UVA to induce collagenase (MMP-1) production. An in~vitro wound-healing model was based on the activation of HDF migration into cell-free tissue culture surface. Hydrogen peroxide-induced oxidative stress was performed using HDFs to measure intracellular ROS activity. Radical scavenging capacity was determined using a colorimetric antioxidant assay kit (ABTS method). Lastly, a 4-week, 29-subject study was performed in which SIG1273 was applied topically as a cream to assess its tolerance and activity in reducing the appearance of aging.

RESULTS: In vitro studies demonstrate SIG1273 inhibits UVA-induced MMP-1 production, hydrogen peroxide-induced oxidative stress and promotes wound healing. Moreover, SIG1273 was shown to be a radical scavenging antioxidant. Clinical assessment of SIG1273 cream (0.25\%) showed it was well tolerated with significant improvement in the appearance of fine lines, coarse wrinkles, radiance/luminosity, pore size, texture/smoothness, hydration and increased firmness.

CONCLUSIONS: SIG1273 represents a novel CFI with antioxidant, anti-aging, and anti-inflammatory properties that when applied topically is well tolerated and provides benefits to individuals with aging skin. },
  year = {2016},
  journal = {J Cosmet Dermatol},
  volume = {15},
  pages = {150-7},
  month = {06/2016},
  issn = {1473-2165},
  doi = {10.1111/jocd.12206},
  language = {eng},
}