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Topical equol preparation improves structural and molecular skin parameters.

U Magnet1, C Urbanek2, D Gaisberger2

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International Journal of Cosmetic Science
|June 3, 2017
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Topical equol improved skin structure and elasticity. It also led to significantly longer telomeres in treated skin cells, suggesting benefits for skin aging.

Keywords:
DNA methylationLINE-1emulsionsequolgenetic analysistelomeres

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Area of Science:

  • Dermatology and Molecular Biology
  • Epigenetics and Skin Aging Research

Background:

  • Equol, a phytoestrogen, possesses antioxidative and epigenetic properties beneficial for skin health.
  • Previous research suggests equol's potential in skin regeneration and anti-aging.
  • Understanding equol's impact on skin structure and molecular markers is crucial for developing effective anti-aging interventions.

Purpose of the Study:

  • To evaluate the effects of topical equol on skin structure, telomere length, and epigenetic markers.
  • To compare the efficacy of equol powder versus microencapsulated equol in a topical emulsion.
  • To assess the impact of equol on skin aging indicators.

Main Methods:

  • Sixty-four participants were randomized into four groups, with three receiving topical emulsions containing equol (powder or microencapsulated) or a placebo.
  • Skin structural parameters were analyzed using Visioscan® and Cutometer®.
  • Molecular analyses included telomere length and LINE-1 methylation in epidermal cells.

Main Results:

  • Both equol preparations significantly improved skin roughness, texture, smoothness, firmness, and elasticity.
  • Participants receiving topical equol showed significantly longer telomeres compared to baseline.
  • No significant differences were observed between the pure equol and microencapsulated equol formulations.

Conclusions:

  • Topical equol demonstrates beneficial effects on both structural and molecular skin parameters.
  • Equol may play a role in mitigating skin aging by influencing telomere length.
  • Further research is warranted to elucidate the epigenetic mechanisms underlying equol's effects on skin aging.