Genistein

Ottimo

Antiossidante

Genistein at a glance

  • Belongs to a set of compounds known as isoflavones, which are sources of phytoestrogens
  • Commonly derived from soy
  • Has antioxidant and skin-soothing properties
  • Has been shown to visibly improve signs of ageing that occur or accelerate during menopause

Genistein description

Genistein is a naturally occurring plant ingredient that belongs to a group of compounds known as isoflavones. Isoflavones are sources of phytoestrogens, also known as plant estrogens, that are not hormones but can connect with receptor sites on skin’s surface, helping it look and feel younger. Genistein is most often derived from soy but can also be produced synthetically (Paula’s Choice Skincare uses the natural variety). As an isoflavone, genistein is a rich source of antioxidants that have impressive skin-soothing properties. Research shows that genistein has multiple benefits for skin, both when it’s ingested and used topically. Applied to skin, genistein exhibits anti-ageing effects, including reducing the visible appearance of wrinkles and helping protect skin from the effects of sun damage. It penetrates skin better than “sister” isoflavone daidzein, but research has shown that these ingredients work even better when paired in a single formula. This is due to the synergy they share as well as both having an affinity for key receptor sites on skin’s surface. Emerging studies also show genistein has a special ability to improve signs of aging and dry skin that are common during menopause. It is typically used in amounts of 0.251% for these benefits, although studies have been done looking at concentrations up to 4%.

Genistein references

  • Phytotherapy Research, March 2020, Volume 34, Issue 3, pages 435-447
  • Surgical and Cosmetic Dermatology, March 2020
  • International Journal of Women’s Dermatology, June 2019, pages 85-90
  • AAPS FarmSciTech, October 2018, Issue 19, Volume 7, pages 3029-3,039
  • Nutrients, June 2017, Volume 9, Issue 6, page 622
  • Journal of Photochemistry and Photobiology B: Biology, March 2015, pages 20-27
  • International Journal of Pharmaceutics, November 2008, pages 36-44
  • The Journal of Nutrition, November 2003, Volume 133, Issue 11, pages 3811S–3819S
  • Journal of Investigative Dermatology, May 2003, pages 835-841

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Valutazione degli ingredienti

Ottimo

Comprovati e sostenuti da studi indipendenti. Ingrediente attivo eccezionale per la maggior parte dei tipi di pelle o dei problemi.

Buono

Necessario per migliorare la consistenza, la stabilità o la penetrazione di una formula.

Discreto

Generalmente non irritante, ma può presentare problemi per come appare esteticamente, nella stabilità o avere problemi di altro tipo che ne limitano l'utilità.

Da evitare

Può causare irritazioni. Il rischio aumenta se combinato con altri ingredienti potenzialmente problematici.

Non usare

Può causare irritazioni, infiammazioni, secchezza, ecc. Può offrire benefici solo in alcuni casi, ma nel complesso è dimostrato che fa più male che bene.

Sconosciuto

Non abbiamo trovato l'ingrediente nel nostro dizionario. Registriamo di volta in volta tutti gli ingredienti mancanti per tenere aggiornato il nostro dizionario.

Non classificato

Non abbiamo ancora assegnato un voto a questo ingrediente perché non abbiamo avuto modo di esaminare la ricerca in merito.