Best Flora Antioxidants in 2026

Daisy
Last Updated: Jul 19, 2026

At a Glance: Our Top Picks for Flora Antioxidants

Natural Factors, Certified Organic Oil of Oregano, Herbal Supplement for Immune Support, Vegan, Non-GMO, 2 Oz
#TOP1
Natural Factors, Certified Organic Oil Of Oregano, Herbal
9.8
PM SCORE
Natural Factors, GrapeSeedRich Grape Seed Extract, Antioxidant Support for Healthy Inflammatory Response, 120 Capsules
#TOP2
Natural Factors, Grapeseedrich Grape Seed Extract, Antioxidant Support
9.8
PM SCORE
Natural Factors, Quercetin LipoMicel Matrix for Superior Absorption, 120 Liquid Softgels, 120 Softgels
#TOP3
Natural Factors, Quercetin Lipomicel Matrix For Superior Absorption,
9.7
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Flora Antioxidants of 2026

Natural Factors, Certified Organic Oil Of Oregano, Herbal Supplement For Immune Support, Vegan, Non-Gmo, 2 Oz

NATURAL FACTORS
4572
1.65 X 1.65 X 4.65 Inches
0.33 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NetRush 9.98

Features

Natural immune shield: Brimming with antioxidants, our herbal extract helps strengthen your immune system while also supporting your general health and well-being

Herbal warrior: Encourages a healthy immune system and helps fend off free radical damage; Supports upper respiratory health

Picked for potency: Made from hand-picked, wildcrafted oregano leaves; Contains 80% carvacrol

Four drops: Take daily, putting drops into your mouth or mix with water; Free of gluten and soy; Not intended for those who are pregnant or breastfeeding

Third-party certified: Independently tested for GMOs and over 700 contaminants using advanced technology such as mass spectrometry to ensure purity and potency

Natural Factors, Grapeseedrich Grape Seed Extract, Antioxidant Support For Healthy Inflammatory Response, 120 Capsules

NATURAL FACTORS
4540
2.41 X 2.41 X 4.20 Inches
0.20 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NetRush 9.98

Features

Get your daily antioxidants from nature with GrapeSeedRich Grape Seed Extract; It delivers 100 mg of grape seed extract to support your health at any age

Supports cardiovascular health by strengthening capillaries; Supports eye health and eases eye strain; Supports mental acuity and overall brain health

Take 1 capsule 1-2 times a day; Our formula is optimized for strength and purity, meaning you get the most of one of nature’s most powerful antioxidants

Grape seed extract is rich in powerful plant compounds called polyphenols that help the body fight the damaging effects of free radicals and promote a healthy inflammatory response

Third-party certified and independently tested for GMOs and over 700 contaminants using advanced technology such as mass spectrometry to ensure purity and potency

Natural Factors, Quercetin Lipomicel Matrix For Superior Absorption, 120 Liquid Softgels, 120 Softgels

NATURAL FACTORS
1393
2.72 X 2.72 X 4.57 Inches
0.03 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NetRush 9.98

Features

Contains unique antioxidants to support your blood vessels and immune system;* Formulated with LipoMicel technology that delivers up to 10x superior absorption than standard quercetin*

Helps your heart respiratory and overall health; Protects against oxidative stress and free radicals;* Enhances the efficacy of other nutrients like vitamin C*

Supports a healthy inflammatory response as well as sinus and upper respiratory health;* Provides 250 mg of plant-based quercetin in an easy-to-swallow liquid softgel

Take 1 softgel per day or up to 3 times per day with food; Our capsules are sugar, gluten and dairy-free and suitable for vegans and vegetarians

Independently tested and third-party certified for GMOs and over 800 contaminants using advanced technology such as mass spectrometry to ensure purity and potency

Natural Factors, Lutein 40 Mg, Antioxidant Support For Healthy Eyes And Skin With Zeaxanthin, 60 Softgels

NATURAL FACTORS
1035
5.90 X 6.00 X 10.80 Inches
0.18 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NetRush 9.98

Features

Take care of your eyes with natural antioxidants; Natural Factors’ Lutein nourishes the retina and macula, the central area of the retina responsible for vision

Formulated with lutein and zeaxanthin that work in synergy to support your eyes and skin from sunlight-induced free radical damage

Take just 1 softgel per day to support your eye health; Free from dairy, gluten, artificial colors, preservatives and sweeteners

We use naturally-sourced lutein and zeaxanthin blend derived from marigold petals; Its non-irradiated and non-GMO

Third-party certified and independently tested for GMOs and over 700 contaminants using advanced technology such as mass spectrometry to ensure purity and potency

Natural Factors, Betacareall 25,000 Iu, Vitamin A For Healthy Skin, Vision And Immune Function, 90 Softgels

NATURAL FACTORS
1014
2.19 X 2.19 X 3.87 Inches
0.02 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NetRush 9.98

Features

Enjoy powerful antioxidant protection with BetaCareAll, containing mixed carotenoids that help protect your cells from free radical damage

Get Vitamin A for healthy skin, vision, mucous membranes, bones, teeth and immune function; Beta-carotene in this supplement is a plant compound that readily converts to Vitamin A in the body

Features a mixed carotenoid formula sourced from whole algae and sustainable palm oil, offering naturally sourced beta-carotene; Provides added carotenoids such as lycopene, lutein and zeaxanthin

Take 1 softgel daily; Non-GMO, sugar, dairy and gluten-free supplement with no artificial colors, preservatives or sweeteners

Independently tested and third-party certified for GMOs and over 800 contaminants using advanced technology such as mass spectrometry to ensure purity and potency

Natural Factors, Pycnogenol 100 Mg, Antioxidant Support For Healthy Aging, 30 Capsules

NATURAL FACTORS
2091
2.18 X 2.18 X 3.86 Inches
0.07 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NetRush 9.98

Features

Antioxidant for healthy aging:* Defend your health as you age with natural antioxidant support from our potent free radical scavenger extracted from French maritime pine bark*

Fend off free radicals:* Clean up free radicals before they cause oxidative damage and support a healthy inflammatory response in the process*

For circulation and joints:* Help produce endothelial nitric oxide to aid healthy blood flow by widening blood vessels;* supports collagen and hyaluronic acid generation, key to skin and joint health*

One capsule: Take daily; Vegan, non-GMO and free of gluten, dairy, sugar, artificial colors, preservatives or sweeteners

Third-party certified: Independently tested for GMOs and over 800 contaminants using advanced technology such as mass spectrometry to ensure purity and potency

Natural Factors Astaxanthin Plus 4Mg, 60 Ct

NATURAL FACTORS
1013
3.70 X 2.10 X 1.40 Inches
0.09 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NetRush 9.98

Features

Antioxidant support: Nurture healthy eyes, cardiovascular and immune systems with the combined power of astaxanthin, lutein and zeaxanthin

Uv protection: Formulated with 4 mg of highly absorbable astaxanthin, clinically shown to help protect skin from the aging effects of the sun and UV exposure

Natural wellness: Harness the power of one of nature's most supportive antioxidants to help maintain good health

Just one softgel take daily; non-gmo and free of gluten, dairy, sugar, artificial colors, preservatives or sweeteners

Third-party certified: Independently tested for GMOs and over 700 contaminants using advanced technology such as mass spectrometry to ensure purity and potency

Natural Factors, Alpha-Lipoic Acid 400 Mg, Whole Body Antioxidant Support, 60 Capsules

NATURAL FACTORS
068958021010
2.17 X 2.17 X 3.94 Inches
0.15 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
iHerb LLC 9.83

Features

Get the sunshine vitamin the safe way; Natural Factors’ Vitamin D3 Drops 1,000 IU (25 mcg) delivers your daily dose of vitamin D available without the UV rays*

Supports strong bones and teeth, helps regulate the immune system and encourages healthy nerve and muscle function*

Take just 1 drop once a day on its own or mix it with food or a drink; Our formula is blended with MCT oil and organic flaxseed oil for better absorption*

Helps you absorb more calcium and phosphorus from your food for even more bone support

Third-party certified and independently tested for GMOs and over 800 contaminants using advanced technology such as mass spectrometry to ensure purity and potency

3 Brains By Natural Factors, Serene Mind, Adaptogenic Blend To Help Naturally Relieve Stress & Mental Fatigue, Daily Dietary Supplement, Vegetarian, 120 Capsules (60 Servings)

NATURAL FACTORS
3057
2.40 X 2.40 X 4.20 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING

Features

Relief for mental fatigue:* Designed to support cognitive function by temporarily relieving mental fatigue associated with everyday stress;* Enhances physical performance*

Adaptogenic herbs: Ashwagandha, rhodiola, choline and Panax ginseng promote a healthy response to physical and mental stressors*

Natural defense: Antioxidants from green tea extract help defend against free radical damage;* Promotes healthy glucose levels already within the normal range*

Natural, non-habit-forming: This synergistic blend of energizing herbs and adaptogens is a natural, nonaddictive way to help bring stress relief into your life*

3 brains for overall wellness: A supplement line designed to support the critical relationship between the heart, gut and head "brains" to influence cognition and support a healthy mind

Natural Factors Whole Earth & Sea From, Super Mushroom, Whole Food Supplement, Vegan 30 Vegetarian Capsules

NATURAL FACTORS
35511
2.31 X 2.31 X 4.09 Inches
0.30 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NetRush 9.98

Features

A mushroom multi: Formulated to promote immune and cognitive health, energy and stress management;* An excellent source of 6 superfood mushrooms and clinically supported Wellmune beta glucan*

Whole food nutrients: Contains organic reishi, shiitake, cordyceps, chaga, lion's mane and maitake; Fermented to help improve levels of beta glucan polysaccharides and antioxidants

Raw, farm fresh ingredients: Sourced from fresh, raw plants grown on certified organic, non-GMO Natural Factors Farms

A healthy resistance: Includes Wellmune beta glucans and mushroom superfoods to support a strong immune system when facing physical, psychological and environmental stress*

Third-party certified: Independently tested for GMOs and over 800 contaminants using advanced technology such as mass spectrometry to ensure purity and potency

Natural Factors, Curcuminrich Theracurmin, 30 Mg (120 Tablets) & Quercetin Lipomicel Matrix, 250 Mg, (60 Liquid Softgels) For Immune Support

NATURAL FACTORS
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NetRush 9.98

Features

Receive powerful plant-based antioxidants to support your overall health with this bundle featuring our CurcuminRich Theracurmin capsules and Quercetin LipoMicel Matrix softgels

Support the body's natural inflammatory response, heart and joint function with our Theracurmin; Made using special technology that dramatically increases curcumin absorption

Fortify your immune system and support your blood vessels with our Quercetin LipoMicel Matrix; Formulated using Lipomicel technology for quercetin that is up to 10x better absorbed than standard forms

Take 1 CurcuminRich Theracurmin capsule up to 2 times per day and 1 Quercetin LipoMicel softgel daily or up to 3 times per day with food

Independently tested and third-party certified for GMOs and over 800 contaminants using advanced technology such as mass spectrometry to ensure purity and potency

Natural Factors, Curcuminrich Theracurmin, 30 Mg (120 Tablets) & Whole Earth & Sea Vitamin D3 5000 Iu (125 Mcg), Vegan, (60 Capsules) For Immune Support

NATURAL FACTORS
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NetRush 9.98

Features

Receive powerful plant-based antioxidants to support your overall health with this bundle featuring our CurcuminRich Theracurmin and Whole Earth & Sea Vitamin D3

Support the body's natural inflammatory response, heart and joint function with our Theracurmin; Made using special technology that dramatically increases curcumin absorption

Boost your immune system with our Whole Earth & Sea Vitamin D3 that increases calcium absorption in the body for strong bones; Delivers Vitamin D3 in its most bioavailable and easy-to-absorb form

Take 1 CurcuminRich Theracurmin capsule up to 2 times per day and 1 Vitamin D3 capsule daily; Non-GMO, free of gluten and soy and suitable for vegetarians and vegans

Independently tested and third-party certified for GMOs and over 800 contaminants using advanced technology such as mass spectrometry to ensure purity and potency)

Natural Factors, Chewable Dgl, 400 Mg (180 Tablets) & Oil Of Oregano 30 Mg, 3.25 Fl Oz, Supports Digestion & Immune Health

NATURAL FACTORS
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NetRush 9.98

Features

Support your digestive health and strengthen your immune system with this bundle featuring our Chewable DGL and Oil of Oregano; Bundled pack with natural supplements that promote your overall wellness

Packed with antioxidants, oil of oregano supports immune and respiratory function; Made from hand-picked, wildcrafted oregano leaves, our oil of oregano features at least 80% carvacrol

Soothe your GI tract with our Chewable DGL that features licorice extract, specially processed to remove glycyrrhizin that helps avoid potential side effects such as elevated blood pressure

Put 4 drops of Oil of Oregano daily directly in mouth, mixed with water; Chew 1 DGL tablet 1-3 times per day 20 minutes before each meal

Independently tested and third-party certified for GMOs and over 800 contaminants using advanced technology such as mass spectrometry to ensure purity and potency

Top 10 antioxidants Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Natural Factors 13

Top 10 antioxidants Brands Pie Chart


We've carried out a comprehensive analysis of 5,450 reviews on antioxidants, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select antioxidants priced around $34.92, with top brands including and

Our team of expert editors reviewed these high-quality items and handpicked the top 13 antioxidants for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .

We are dedicated to assisting our users in finding the right supplements Products based on their needs, saving them considerable time when choosing which antioxidants to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.