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Source Naturals, Genistein, Soy Complex, 1,000 mg, 120 Tablets29 Reviews
The length of time for the expiration date or "best used before" date depends on the type of product, as well as the brand.
Perishable items (such as flax oils or certain probiotics) generally have shorter expiration dates. Although our warehouse is fully air-conditioned, these more fragile items are put in cold storage (freezer or refrigeration unit) for maximum freshness.
Our receiving department does its best to verify and then enter the correct expiration dates for all incoming products. However, discrepancies do occur from time to time. This being said, the exceptionally high turnover at iHerb ensures that our inventory is among the freshest in the industry.
0.59 lbs (0.27 kg)
- Product Code: SNS-00050
- UPC Code: 021078000501
- Package Quantity: 120 Tablets
- Dimensions: 2.5 x 2.5 x 5 in, 0.5 lbs (0.23 kg)
Combo Discount: -$1.00
- Non-GMO Soy††
- Dietary Supplement
††Not genetically modified
Genistein, an isoflavone phytonutrient derived from soybeans, has been the focus of scientific research since 1966. Studies have shown that genistein can bind to the same receptor sites as estrogen. Soybeans are the only significant dietary source of genistein; however, the amount of soy foods necessary to meet the body's needs can be difficult to incorporate into today's diet. In Asia, where soy is a staple, the daily intake can be up to 20 times that of a Western Diet.
Source Naturals Genistein Soy Complex is made from isoflavone-rich soybean powder that yields a consistent standardized isoflavone content. This unique chemical-free process requires approximately 400 pounds of soybeans to yield just one pound of finished product.
2 tablets twice daily with a meal.
Stearic acid, sorbitol, colloidal silicon dioxide, modified cellulose gum, and magnesium stearate.
Suitable for vegetarians. Contains no yeast, dairy, egg, gluten, corn or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.
Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.
Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.
|Serving Size: 2 Tablets|
|Servings Per Container: 60|
|Amount Per Serving||%DV|
|Total Carbohydrate||1 g||<1%*|
|Isoflavone-Rich Soybean Concentrate (Soylife)||2 g||†|
|Total Isoflavones||62 mg||†|
|* Percent Daily Values (%DV) are based on a 2,000 calorie diet.
†Daily Value not established.
**Soy Isoflavone level calculated in accordance with the assay method in the American Journal of Clinical Nutrition, Volume 68, pages 1474-1479, December 1998.
iHerb Customer Reviews
Genistein was shown in a small study to block tyrosine kinase, an enzyme that is activated in CEBV. This product has saved me, enabling me to return to work. I've been taking it for almost two years.
Genistein inhibits two crucial enzymes - 3-beta-hydroxysteroid-dehydrogenase (3B-HSD) and 21-hydroxylase. These enzymes are responsible for converting cholesterol to progesterone and cortisol. 3B-HSD also affects synthesis of other hormones. Inhibiting the aforementioned enzymes has repercussions for energy production, among other things - especially if there are any other issues with synthesis/conversion of cholesterol (e.g. lacking nutrients, defective pathway). Genistein may therefore worsen CFS/adrenal dysfunction. Tyrosinase is a copper enzyme. 'Increased manganese intake impairs the activity of copper metallo-enzymes' - from The Clinical Effects of Manganese by E. Blaurock-Busch, PhD - if your goal is to inhibit tyrosinases, you could try taking manganese instead (it's cheaper). Some other options are turmeric (also inhibits tyrosinases, e.g. tyrosine hydroxylase), chick peas (aka Garbanzo Beans, contain same isoflavones, though less of). If any/all of those things cause you to feel awful - then inhibiting tyrosinase is not such a good idea and/or there's possibly an iron issue. If this review was helpful to you, please click YES below - thank you. For reviews of all the products I have purchased from iHerb, please click my username above.