Super Absorbable Soy Isoflavones - 60 vegetarian capsules by Life Extension

Supports Healthy Cell Colonies*

  • Helps stimulate bone formation, without the side effects of hormone replacement therapy
  • Contains three major isoflavones found in soybeans, genistein, daidzein, and glycitein
  • Helps maintain healthier cell biological function and proliferation
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The beneficial effects of genistein and other soy isoflavones have been shown in numerous published studies. These studies reveal that those who consume the most soy maintain healthier cell biological function and proliferation.1-5

The three major isoflavones found in soybeans are genistein, daidzein, and glycitein. Soy isoflavones exert both estrogenic and anti-estrogenic effects, depending on the tissue in which they are acting.6,7 They are structurally similar to 17-estradiol,8 a mammalian estrogen, and are thus called phytoestrogens. They also have non-hormonal effects, including signal transduction and antioxidant activity.9,10 Soy isoflavones may inhibit bone resorption and help stimulate bone formation,11 without the side effects of hormone replacement therapy.

Other constituents of soy have also demonstrated effects that help explain the health and longevity of Asian populations who consume a great deal of soy in their diet.

In response to increasing evidence that other constituents of soy may provide significant cell-protective effects, a formulation has been developed that provides soy extract standardized to isoflavones plus fermented soyfood (Natto) that may provide additional benefits. Natto enhances isoflavone absorption and provides other nutrients contributed by the fermentation process.12,13 The enhanced absorption of genistein, daidzein, etc., may be significant enough that only one capsule of Super Absorbable Soy Isoflavones is required each day. The non-GMO Soynatto® used in this formula is produced by a yeast fermentation process. Japanese researchers have found that this type of cultured broth from yeast helps promote healthy cell function and proliferation.14-16


  1. Eur J Clin Nutr. 2008 Feb;62(2):155-61.
  2. Nutr Cancer. 2008;60(5):568-76.
  3. Br J Cancer. 2008 Jul 8;99(1):196-200.
  4. Int J Vitam Nutr Res. 2007 Mar;77(2):130-41.
  5. J Natl Cancer Inst. 2003 Aug 6;95(15):1158-64.
  6. Cancer Causes Control. 2009 Sep;20(7):1117-27.
  7. J Musculoskelet Neuronal Interact. 2002 Jun;2(4):352-9.
  8. Pharmacogn Rev. 2010 Jul;4(8):111-7.
  9. Acta Pol Pharm. 2008 Mar-Apr;65(2):203-11.
  10. Endocrinology. 2005 Mar;146(3):1312-20.
  11. Eur J Clin Nutr. 2008 Feb;62(2):155-61.
  12. Am J Clin Nutr. 1998 Dec;68(6 Suppl):1492S-1495S.
  13. Clin Calcium. 2009 Oct;19(10):1514-9.
  14. Jpn J Cancer Res. 1998 May;89(5):487-95.
  15. World J Gastroenterol. 2005 Dec 14;11(46):7355-8.
  16. J Ind Microbiol Biotechnol. 2008 Aug;35(8):791-8.

*These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.

Label Information

Supplement Facts
Serving Size: 1 vegetarian capsule
Servings Per Container: 60
Amount Per Serving %DV
Novasoy® Soy isoflavone concentrate† 135 mg **
Standardized to (40%) isoflavones 54 mg **
Typical soy isoflavone profile:    
Genistein and its precursor isoform genistin 28 mg **
Daidzein and its precursor isoform daidzin 22 mg **
Glycitein and its precursor isoform glycitin 4 mg **
Soynatto™ Fermented Soyfood 435 mg **
** Daily Value not established
† Sourced from non-GMO soybeans under an identity preservation program.
Sourced from non-GMO soybeans under an identity preservation program. Novasoy® and the Novasoy logo are registered trademarks of Archer- Daniels-Midland Company.
  • Suggested Use: Take one (1) capsule once or twice daily with food, or as recommended by a healthcare practitioner.
  • Storage: Store in a cool, dry place. Clost tightly after each use. Keep out of reach of children.
  • Contraindications: When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating. Persons with estrogen dependent cancers should consult a healthcare professional before beginning a soy regimen. Contains soybeans.
  • Other Ingredients: Vegetable cellulose (capsule), silica, ascorbyl palmitate.
  • Contains No: GMO's