Best Soy-Free Antioxidant Supplements of 2025

Elisa Drew Avatar
Elisa Drew
Last Updated: Jan 8, 2025

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Soy-free antioxidant supplements are a great way to boost overall health and well-being without the risk of soy-related allergies or sensitivities. These supplements are specially formulated to provide the body with powerful antioxidants, such as vitamins C and E, that help protect against cellular damage caused by free radicals. They may also contain other beneficial ingredients like green tea extract and resveratrol. These supplements can be particularly helpful for those looking to support healthy aging, reduce inflammation, and improve immune function. Soy-free antioxidant supplements are available in a variety of forms, including capsules, powders, and liquids, making it easy to incorporate them into any daily routine.

At a Glance: Our Top Picks

DIM Hormone Balance Supplement Cover #TOP 1
DIM Hormone Balance Supplement
ftb score rating icon 9.8
Zinc Quercetin 120 Capsules Cover #TOP 2
Zinc Quercetin 120 Capsules
ftb score rating icon 9.7
Nutricost Alpha Lipoic Acid: 240 Capsules Cover #TOP 3
Nutricost Alpha Lipoic Acid: 240 Capsules
ftb score rating icon 9.5

Top 10 Soy-Free Antioxidant Supplements

DIM Hormone Balance Supplement

DIM Hormone Balance Supplement Cover
DIM Supplement 200 mg | Estrogen Balance for Women & Men | Hormonal Acne Support, Hormone Balance, Menopause Support, Antioxidant Support | Clean Label Project Certified, Vegan, Soy Free | 60 Ct.

SM Nutrition's DIM supplement is a revolution in hormone balance and supports the body's ability to process excess estrogen. For women, it offers support for menopause, hot flashes, PMS, and hormonal acne. For men, it may help reduce excess estrogen, aid with physical fitness, prostate health, energy, and fitness. Each capsule contains 200mg of DIM plus 2.5mg of BioPerine, providing a two-month supply in one bottle. It is certified non-GMO, vegan, soy-free, HALAL, and gluten-free, and contains powerful antioxidants.

What We Like
Supports hormone balance for women and men
May aid in reducing excess estrogen for men
Provides a two-month supply in one bottle
Non-GMO, vegan, soy-free, HALAL, and gluten-free
Contains powerful antioxidants
#TOP 2

Zinc Quercetin 120 Capsules

SP-0066
Zinc Quercetin 120 Capsules Cover
Sandhu’s Zinc Quercetin 120 Vegetarian Capsules – Zinc Supplements for Antioxidant Immune Support Zinc for Men and Women – Gluten, Soy, Dairy Free

This Zinc Quercetin supplement comes with 120 vegetarian capsules and can provide 60 servings per bottle. It supports immune system health, cardiovascular health, and respiratory health. This supplement belongs to the Zinc Supplements category.

What We Like
Vegetarian capsules
Multiple benefits for immune, cardiovascular, and respiratory health
60 servings per bottle
#TOP 3

Nutricost Alpha Lipoic Acid: 240 Capsules

NTC049101
Nutricost Alpha Lipoic Acid: 240 Capsules Cover
Nutricost Alpha Lipoic Acid 600mg Per Serving, 240 Capsules - Gluten Free, Vegetarian Capsules, Soy Free & Non-GMO

Nutricost Alpha Lipoic Acid is a potent supplement that provides 600mg of Alpha Lipoic Acid per serving. It is Non-GMO, Gluten Free, Soy Free, Vegetarian Friendly, and 3rd Party Tested. It is designed to help with inflammation management and is suitable for adults. It comes in a 240 count bottle.

What We Like
Vegetarian Capsules
Non-GMO, Gluten Free, Soy Free, Vegetarian Friendly
3rd Party Tested

DEAL SUPPLEMENT Quercetin Capsules

quercetin
DEAL SUPPLEMENT Quercetin Capsules Cover
DEAL SUPPLEMENT Quercetin 1,000mg Per Serving, 300 Capsules – Healthy Immune Support Supplements, High Bioavailable Flavonoids, Natural Antioxidant – Non-GMO, Soy Free, No Gluten

DEAL Quercetin Capsules are a natural plant-derived supplement that can provide year-round protection for your body. With a maximum strength of 1000mg per serving, these capsules are made with the most efficiently absorbed dihydrate form. This form retains activated flavonoid properties for advanced support and is derived from an authentic sophora japonica source. Taking quercetin will add natural phytonutrient properties that offer powerful antioxidant benefits. With only 2 capsules per serving, you can receive 1,000mg of top-grade quercetin. Every bottle contains over a 2-month supply and offers 150 total capsules. This product is non-GMO, gluten-free, and has been third-party lab tested to ensure quality. DEAL Quercetin Capsules are perfect for those looking for a potent allergy pill or to support a healthy immune system.

What We Like
High bioavailability
Powerful antioxidant benefits
Large quantity
#TOP 5

Guigmiens Liposomal Glutathione

ME10
Guigmiens Liposomal Glutathione Cover
Liposomal Glutathione 1500 MG, Superior Absorption, Liquid Glutathione Supplement, Powerful Antioxidant, Liver Detox, Immune Enhancer, Soy-Free, Non-GMO, Vegan & Gluten Free, 2.02 fl.oz

If you're looking for an antioxidant supplement that supports immune system, liver detox and overall health, Guigmiens Liposomal Glutathione Liquid Supplement is worth checking out. Its advanced liposome technology makes it highly bioavailable for best absorption, and the premium exclusive formulas with a total of 2000mg liposomal reduced glutathione, Liposomal Proprietary Blend and Aging Defense Blend provide superior antioxidant support for the liver, brain, and skin health. The product is Non-GMO, soy-free, gluten-free, and dairy-free, and is made in the UK with guaranteed purity and potency.

What We Like
10X better absorption than regular liposomal glutathione due to advanced liposome technology
Premium exclusive formulas with a total of 2000mg liposomal reduced glutathione, Liposomal Proprietary Blend and Aging Defense Blend provide superior antioxidant support for the liver, brain, and skin health
Non-GMO, soy-free, gluten-free, and dairy-free, and is made in the UK with guaranteed purity and potency
#TOP 6

Doctor's Best High Absorption CoQ10 with Bioperine

DRB-00188
Natural
Doctor's Best High Absorption CoQ10 with Bioperine Cover
Doctor's Best High Absorption CoQ10 with Bioperine, Heart Health & Energy Production, Non-GMO, Gluten & Soy Free, Vegan, 100 Mg, 120 count

Doctor's Best High Absorption CoQ10 is a nutrient that supports heart health, cardiovascular health, and cellular energy. It also provides antioxidant support to the heart. The product is formulated with BioPerine to enhance nutrient absorption and bioavailability. The CoQ10 is gluten-free, non-GMO, vegetarian, vegan, soy-free, and quickly restores your body's CoQ10 levels. It is essential for energy-producing and may enhance vitality across many body systems, such as brain health, immune performance, skin health, exercise capacity, and gum health.

What We Like
Supports heart health
Provides antioxidant support to the heart
Formulated with BioPerine for better nutrient absorption and bioavailability
Essential for energy-producing
Gluten-free, non-GMO, vegetarian, vegan, soy-free
#TOP 7

Doctor's Best Ubiquinol with Kaneka QH Softgels

DRB-00205
Dark Gray, Grey
Doctor's Best Ubiquinol with Kaneka QH Softgels Cover
Doctor's Best Ubiquinol with Kaneka QH, Healthy Heart, Enhances Cellular Energy, Antioxidant, Non-GMO, Gluten Free, Soy Free, 100 Mg

Doctor's Best Ubiquinol with Kaneka QH Softgels are essential for energy production, helpful to statin drug users, and may improve bioavailability. Each softgel contains ubiquinol, the reduced form of coenzyme Q10 that supports healthy heart function and enhances energy production. CoQ10 levels in the heart and body naturally decline after age 40, which can lead to reduced ubiquinol levels. The softgels come in two dosages, 100mg and 200mg.

What We Like
Essential for energy production
May improve bioavailability
Helpful to statin drug users
#TOP 8

GNC SuperFoods Soy Isoflavone Concentrate

GNC
GNC-2546
GNC SuperFoods Soy Isoflavone Concentrate Cover
GNC SuperFoods Soy Isoflavone Concentrate, 90 Capsules, Supports for Bone and Heart Health

GNC Soy Isoflavone Capsules provide support for bone and heart health. The soy isoflavones in this dietary supplement help maintain healthy bone density and support heart health. Specifically designed for menopausal women, these capsules offer a convenient 3-month supply, with each capsule containing 50mg of Soy Isoflavone Concentrate. Free from sugar, artificial colors, flavors, and gluten, these Non-GMO capsules ensure a natural approach to well-being.

What We Like
Bone & heart health support
Menopause-focused
3-month supply

Doctor's Best Curcumin From Turmeric Root

DRB-00195
Original Version
Doctor's Best Curcumin From Turmeric Root Cover
Doctor's Best Curcumin From Turmeric Root with C3 Complex & BioPerine, Benefit the Joints by Helping to Neutralize Free Radicals, Non-GMO, Gluten Free, Soy Free, Joint Support, 1000 mg, 120 Tablets

Doctor's Best Curcumin is a supplement made from a potent standardized extract of Curcuma longa root, commonly known as turmeric. Its active ingredients are curcuminoids, which are compounds that have potent antioxidant properties. Curcuminoids help support the joints, brain, heart, and the circulatory system by neutralizing free radicals. This powerful antioxidant also helps protect cells from free radical damage, improves cardiovascular health, enhances brain function, boosts immunity, and supports healthy digestion. Additionally, Doctor's Best Curcumin contains BioPerine, which is a black pepper extract that helps promote absorption of nutrients in the GI tract, making it highly absorbable.

What We Like
Potent antioxidant
Supports joint, brain, heart, and circulatory system
Contains BioPerine for high absorption
#TOP 10

Doctor's Best Astaxanthin

DRB-00367
Doctor's Best Astaxanthin Cover
Doctor's Best Astaxanthin, Powerful Antioxidant, Skin, Eye Health, Non-GMO, Gluten Free, Vegan, Soy Free, 6 mg, 90VSG

Doctor's Best Astaxanthin is a powerful antioxidant that helps boost skin hydration and elasticity, and supports eye health. It is a highly bioavailable antioxidant that quenches free radicals and tackles age-related oxidative stress. It is Non-GMO, Gluten Free, Vegan, and Soy Free. Customers have reported improved vision, skin health, and protection from colds and flu.

What We Like
Highly bioavailable antioxidant
Supports skin health and eye health
Non-GMO, Gluten Free, Vegan, and Soy Free
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Does CoQ10 have soy in it?

Kirkland CoQ10 300 mg with Bioperine, Heart Health & Energy Production, Non-GMO, Gluten & Soy Free, Vegan-100 Count (Pack of 1)

2. Does all vitamin E contain soy?

While most vitamin E in the market is derived from soybean oil, vitamin E can also be derived from alternative sources like sunflowers or corn. It can also be manufactured naturally or synthetically.

3. Is there soy in vitamins?

Vitamin pills needs to have a binding agent to hold everything together, and some vitamins use soybean oil or soy lecithin as this binding agent. Sometimes an ingredient generically labeled as "lecithin" is included, which makes it difficult to determine if it is soy-based or not.

4. What is E 400 used for?

This supplement is used to prevent or treat a lack of vitamin E in the body. A low body level of vitamin E is rare. Most people who eat a normal diet do not need extra vitamin E. However, vitamin E supplements are used in premature newborns and in people who have problems absorbing enough vitamin E from their diets.

Editor's Notes

During our soy-free antioxidant supplement research, we found 24 soy-free antioxidant supplement products and shortlisted 10 quality products. We collected and analyzed 404,361 customer reviews through our big data system to write the soy-free antioxidant supplements list. We found that most customers choose soy-free antioxidant supplements with an average price of $21.57.

The soy-free antioxidant supplements are available for purchase. We have researched hundreds of brands and picked the top brands of soy-free antioxidant supplements, including SMNutrition, Sandhu's, Nutricost, DEAL SUPPLEMENT, Guigmiens. The seller of top 1 product has received honest feedback from 1,204 consumers with an average rating of 4.8.

Written by
Elisa Drew Avatar

Elisa Drew is a really professional copywriter specializing in baby products with five years of experience working as a pediatrician once. She has published a series of baby books purchased by over thirty thousand people in the United States.