Best Soy Supplement

Peter | 25-12-2025

If you aren’t someone who makes frequent purchases, selecting the best Best Soy Supplement won’t be an easy chore for you. However, you shouldn’t be concerned because we have provided you with the most comprehensive list possible of the top Best Soy Supplement. Have a look at the products on our list, and pick the ones that appeal to you the most.

We researched and tested Best Soy Supplement in the market to get you this list. Our most recommended product is Puritan’s Pride Best Soy Supplement. Check out our picks for all of our favorites, and be sure to read our buying guide to get all the information you need to make the best choice!

Editor's Choice
Puritan's Pride Non-GMO Soy Isoflavones 750mg, Dietary Supplement with Active Daidzein, Genistein,
Puritan's Pride Non-GMO Soy Isoflavones 750mg, Dietary Supplement with Active Daidzein, Genistein,
Premium Pick
NOW Foods Supplements, Soy Isoflavones, 60 mg (Plant Compounds Particularly Concentrated in
NOW Foods Supplements, Soy Isoflavones, 60 mg (Plant Compounds Particularly Concentrated in
Budget Pick
Carlyle Soy Isoflavones for Women and Men 1500mg | 200 Capsules | Non-GMO, Gluten Free Extract
Carlyle Soy Isoflavones for Women and Men 1500mg | 200 Capsules | Non-GMO, Gluten Free Extract

Top 10 Best Soy Supplement

We researched and compared the top products in the Best Soy Supplement category to provide you with these recommendations.

1. Puritan's Pride Non-GMO Soy Isoflavones 750mg, Dietary Supplement with Active Daidzein, Genistein,

Puritan's Pride Non-GMO Soy Isoflavones 750mg, Dietary Supplement with Active Daidzein, Genistein,
9.8

Puritan's Pride

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  • NATURALLY OCCURRING PHYTOESTROGENS FOR MENOPAUSAL SUPPORT: Derived from soy, a plant-based source of phytoestrogens, this supplement helps alleviate common menopausal symptoms such as hot flashes, providing relief and balance for women*
  • STANDARDIZED FOR EFFECTIVE MENOPAUSAL SUPPORT: Formulated with key phytoestrogens typically composed ofDaidzin, Daidzein, Glycitin, Glycitein, Genistin and Genisteinensuring consistent menopausal support, from pre-menopause to post-menopause*
  • FORMULATED WITH NON-GMO SOYBEANS: Made with only non-GMO soybeans, this high-quality supplement provides a reliable product for your health and wellness journey*
  • HOLISTIC HEALTH AND WELLNESS SUPPORT: Adding soy isoflavones to your routine offers a holistic approach to promoting overall health while addressing hormonal changes, helping you feel your best every day*
  • AGE BOLDLY WITH PURITANS PRIDE: For over 50 years, Puritans Pride has been delivering premium-quality supplementsempowering you to live vibrantly, prioritize your health, and thrive at every stage of life. Live boldly with Puritans Pride*

2. Carlyle Soy Isoflavones for Women and Men 1500mg | 200 Capsules | Non-GMO, Gluten Free Extract

Carlyle Soy Isoflavones for Women and Men 1500mg | 200 Capsules | Non-GMO, Gluten Free Extract
9.1

Carlyle

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  • SOY ISOFLAVONES: Beneficial plant compound and a type of plant estrogen found naturally in Soy
  • STANDARDIZED EXTRACT: 1,500 mg Soy Isoflavones Extract per serving for maximum support
  • ROOTED IN WELLNESS: Carlyle provides premium, honest supplements in your pursuit to healthy living
  • CARLYLE MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
  • NATURALLY FREE OF: Gluten, Wheat, Yeast, Milk, Artificial Sweetener, Preservatives & Non-GMO

3. NOW Foods Supplements, Soy Isoflavones, 60 mg (Plant Compounds Particularly Concentrated in

NOW Foods Supplements, Soy Isoflavones, 60 mg (Plant Compounds Particularly Concentrated in
9.5

Now Foods

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  • ENDOCRINE SUPPORT: NOW Soy Isoflavones have been extracted through a unique process that results in higher levels of genistein, a quantum leap over most soy isoflavone products
  • CARDIOVASCULAR HEALTH: Min. 40% total isoflavones (60 mg) including genistein, daidzein, and glycitein
  • CERTIFICATIONS/CLASSIFICATIONS: Sugar Free, Vegan, Nut Free, Non-GMO, Egg Free, Dairy Free, Corn Free, Made without Gluten
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation)
  • Packaged in the USA by a family owned and operated company since 1968

4. Nutricost Soy Isoflavones 150mg, 180 Veggie Capsules - Gluten Free, Non-GMO, Vegetarian Friendly

Nutricost Soy Isoflavones 150mg, 180 Veggie Capsules - Gluten Free, Non-GMO, Vegetarian Friendly
8.7

Nutricost

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  • 150mg of Soy Isoflavones Per Capsule
  • 180 "Veggie" Capsules Per Bottle
  • 1 Serving, Just 1 Easy-To-Take Capsule
  • Vegan, Nut Free, Sugar Free, Dairy Free, Non-GMO, Gluten free
  • Made in a GMP Compliant, FDA Registered Facility

5. 21st Century Soy Isoflavones Veg Capsules, 60Count

21st Century Soy Isoflavones Veg Capsules, 60Count
8.9

21st Century

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  • It contains vegetarian formula.
  • Natural soy for female body, heart & bone health support
  • This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
  • 60Count

6. BulkSupplements.com Soy Isoflavones Capsules - Soy Isoflavones Supplement - Vegan & Gluten Free, 1

BulkSupplements.com Soy Isoflavones Capsules - Soy Isoflavones Supplement - Vegan & Gluten Free, 1
8.5

Bulksupplements

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  • Elevate Your General Health and Well-being: Tailored to support your overall health, our Soy Isoflavones capsules are the perfect addition to any lifestyle. Packed with essential nutrients, they're designed to boost your general well-being, keeping you feeling your best day after day.
  • Tailored for Modern Lifestyles: Our Soy Isoflavones capsules are not just about nutrition; Soy Isoflavone supplement is about fitting into your modern lifestyle with ease. Whether you are just starting a healthier living, or a health-conscious professional, our products are crafted to complement your dietary preferences and wellness goals.
  • Compact Nutrition for On-the-Go Lifestyles: Perfect for individuals always on the move, our Soy Isoflavone supplement pack a potent nutritional punch in a small, portable form. Keeping up with your wellness routine has never been easier.
  • Transparent and Trustworthy: Experience the confidence that comes with choosing a supplement that not only meets rigorous third-party testing but also upholds the principles of clarity and integrity in its formulation and production.
  • Commitment to Quality: All of our products are crafted in a facility that adheres to rigorous cGMP standards, ensuring the highest level of quality and safety. This dedication guarantees a consistent and reliable supplement you can trust to support your health and wellness routine.

7. GNC SuperFoods Soy Isoflavone Concentrate, 90 Capsules, Supports for Bone and Heart Health

  • GNC SuperFoods Soy Isoflavone Concentrate provides support for bone and heart health Emerging research indicates that soy isoflavones can help maintain healthy bone density and support heart health
  • GNC Superfoods Soy Isoflavone Concentrate uses only Non-Genetically Modified (Non-GMO) soybeans that have not been altered to raise or enhance the level of naturally occurring isoflavones
  • 3 MONTH SUPPLY: 50mg of Soy Isoflavone Concentrate packed into one convenient capsule
  • DIETARY SUPPLEMENT: No sugar, no artificial colors, no artificial flavors, sodium free, no wheat, gluten free, no soy, no dairy
  • NON-GMO: Derived from non-genetically modified soybeans

8. Life Extension Soy Isoflavones, Heart, Bone & Cellular Health Support for Post-menopausal Women,

Life Extension Soy Isoflavones, Heart, Bone & Cellular Health Support for Post-menopausal Women,
8

Life Extension

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  • Encourage heart health Soy isoflavones are phytoestrogens (plant estrogens) that can help maintain already healthy blood pressure and healthy blood lipid levels and encourage heart health in women as they age.
  • Support strong bones Soy is well-known for helping maintain healthy bone density, especially in women who have already gone through menopause. Soy isoflavones also help fight oxidative stress, contributing to wellness and healthy aging.
  • Standardized soy extract This soy extract has been standardized to 40% isoflavones and provides the isoflavones genistein, daidzein, and glycitein, phytoestrogens known for their beneficial health effects.
  • Ingredients matter We use the finest raw ingredients with the quality and purity you deserve. The majority of our products are non-GMO, gluten-free and manufactured in the USAand a Certificate of Analysis is available for every one.
  • Live your healthiest life We believe the answers to a healthier life are in reach, and that scientific research is the key to getting there. Thats why so many of our formulas feature specific ingredients and amounts based on scientific studies.

9. Like Mine Soy Isoflavones (100 Capsules), Pure & Natural, Dietary Supplement, No Fillers

Like Mine Soy Isoflavones (100 Capsules), Pure & Natural, Dietary Supplement, No Fillers
7.7

Like Mine

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  • Like Mine Soy Isoflavones Capsules have single ingredient formulations for simplicity and purity
  • Celebrate your unique individual strength with our selection of supplements to help you reach your best you
  • We don't add fillers or additives to our Soy Isoflavones supplement, meaning you get only what you're looking for
  • All products are tested for purity and quality to ensure you are receiving only the best
  • Packaged in the USA

10. Best Naturals Best Naturals Soy Isoflavones for Women 750 Mg Capsules, 120 Count

Best Naturals Best Naturals Soy Isoflavones for Women 750 Mg Capsules, 120 Count
7.9

Best Naturals

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  • 3rd Party Lab Tested for Purity & Quality.
  • 750 mg of Soy Isoflavones per Capsule - 120 Capsules per Bottle.
  • Non-GMO & Gluten-Free.
  • Proudly Made in USA, GMP Compliant, FDA Registered Facility.
  • No Artificial Color, Flavor, or Sweetener, No Preservatives, No Sugar, No Milk, No Corn, No Soy, No Egg, No Lactose, No Gluten, No Wheat, No Yeast, No Fish. Sodium Free.

Peter

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