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Category · 25 products

Antioxidant

Redox-active molecules. Useful in deficiency and oxidative stress; oversold as a general anti-ageing lever.

Category statistics and scoring
25
5.8
A
T1
20
$0.02
Compare the top 3 → Filter the full index →
Ranked

Every Antioxidant product we score

Same formula as the rest of the site. Position here has never been bought.

Reading guide

How to read this shelf

Curcumin, glutathione, sulforaphane precursors, astaxanthin and similar. Extract weight and the amount of the named compound often differ. The catalog stores the milligram figure the label gives for the listed ingredient.

Check on every label

  • Whether the milligrams describe the whole extract or the standardised compound (for example '500 mg turmeric extract' versus '475 mg curcuminoids').
  • Delivery wording such as liposomal or phytosome changes the carrier, not the labelled amount.
  • For glutathione and sulforaphane, check whether the label lists the compound itself or a precursor (glucoraphanin, NAC).
Catalog figures for this shelf (25)
Products
25
Most common lead ingredients
Curcumin (7), Glutathione (3), Alpha-Lipoic Acid (2)
Forms
Capsule (20), Softgel (4), Powder (1)
Range of Curcumin per serving
400 mg to 1,000 mg across 7 products
Price per serving
$0.15 to $2.25
Testing listed
17 of 25 list third-party testing · 7 publish a CoA
Multi-ingredient products
2 of 25 list three or more ingredients

Counts and ranges are catalog facts about the labels, not a ranking. The score, evidence and safety sections below are separate.

Top 3 for this shelf

The three best-evidenced options here, with the plain verdict and the catch first. The full ranking continues below.

Antioxidant
Active per serving
Alpha-Lipoic Acid 1,000 mgCapsule · 30 servings
Price per serving
$0.83$24.97 · 30 servings
Testing
3rd-party listed · no public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 8.0/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.50
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.toniiq.com

Verdict: This Toniiq Alpha Lipoic Acid 1000 scores 8.0, making it a strong scorer. It delivers 1000mg of Alpha-Lipoic Acid, inside the studied range of 300–1200mg with grade A evidence (strong human trial data).

The catch: Alpha-Lipoic Acid (1000mg is 167% of the 600mg trial dose) is well above the trial dose. More is not always better.

02
Double Wood Supplements
Quercetin Supplement (with Bromelain)
Antioxidant
Active per serving
Quercetin 1,000 mgCapsule · 30 servings
Price per serving
$0.83$24.95 · 30 servings
Testing
3rd-party listed · public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 7.6/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.42
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with doublewoodsupplements.com

Verdict: This Double Wood Supplements Quercetin Supplement (with Bromelain) scores 7.6, making it a strong scorer. It delivers 1000mg of Quercetin, inside the studied range of 250–1000mg with grade B evidence (promising human data, not yet comprehensive). Transparency is a clear strength (score: 9.0), with third-party testing and a public lab certificate. At $0.42/day it's priced well for what you get.

The catch: Quercetin (1000.0mg is 200% of the 500mg trial dose) is well above the trial dose. More is not always better.

03
Pure Encapsulations
Alpha Lipoic Acid 400 mg
Antioxidant
Active per serving
Alpha-Lipoic Acid 400 mgCapsule · 120 servings
Price per serving
$0.81$97.00 · 120 servings
Testing
None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 7.4/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$1.21
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.pureencapsulationspro.com

Verdict: This Pure Encapsulations Alpha Lipoic Acid 400 mg scores 7.4, making it a mid-tier product with both strengths and weaknesses. It delivers 400mg of Alpha-Lipoic Acid, inside the studied range of 300–1200mg with grade A evidence (strong human trial data). The quality transparency (5.0) is limited by the lack of third-party testing.

The catch: No third-party testing, which caps the quality transparency.

Quick compare

Top 5 in Antioxidant

Sorted by overall score. Same numbers you'll see on each product page.

#ProductScorePrimary activeDose vs RCTPrice/moValue rankDose+Evidence
#1Alpha Lipoic Acid 1000
Toniiq
8.00/10Alpha-Lipoic Acid 1000mg✅ 100%$25/moTop 29%9.0/10
#2Quercetin Supplement (with Bromelain)
Double Wood Supplements
7.60/10Quercetin 1000mg✅ 100%$25/moTop 21%7.2/10
#3Alpha Lipoic Acid 400 mg
Pure Encapsulations
7.40/10Alpha-Lipoic Acid 400mg✅ 100%$24/moMid-range9.0/10
#4Nitralis®
DoNotAge
7.00/10Magnesium 800mg✅ 400%$8/moTop 4%9.3/10
#5Astaxanthin Supplement
Double Wood Supplements
7.00/10Astaxanthin 12mg✅ 100%$13/moTop 17%7.2/10

Tied scores are shown to two decimals. Ties break in this order: dose vs study dose, then transparency, then value, then price per day at studied dose.

Show all 25 Antioxidant products →
04
DoNotAge
Nitralis®
Antioxidant
Active per serving
Magnesium 800 mgElemental vs compound: check label
Price per serving
$0.27$98.00 · 366 servings
Testing
3rd-party listed · no public lab certificate

Undisclosed amounts noted

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 7.0/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

400%
of trial dose
$0.10
per research-dose day, not label serving
400% · over 2× trial dose0Trial dose2×
Catalog price · Confirm current price with donotage.org
05
Double Wood Supplements
Astaxanthin Supplement
Antioxidant
Active per serving
Astaxanthin 12 mgSoftgel · 60 servings
Price per serving
$0.43$25.95 · 60 servings
Testing
3rd-party listed · public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 7.0/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.29
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with doublewoodsupplements.com
06
Elysium Health
Vision
Antioxidant
Active per serving
Astaxanthin 6 mgSoftgel · 30 servings
Price per serving
$1.33$40.00 · 30 servings
Testing
None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 6.8/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$1.78
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.elysiumhealth.com
07
Double Wood Supplements
L-Ergothioneine Supplement
Antioxidant
Active per serving
Ergothioneine 30 mgCapsule · 60 servings
Price per serving
$0.33$19.95 · 60 servings
Testing
3rd-party listed · public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 6.8/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.11
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with doublewoodsupplements.com
08
Double Wood Supplements
Sulforaphane Supplement
Antioxidant
Active per serving
Sulforaphane 20 mgCapsule · 60 servings
Price per serving
$0.33$19.95 · 60 servings
Testing
3rd-party listed · public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 6.8/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.50
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with doublewoodsupplements.com
09
Nordic Naturals
Ultimate Omega + Curcumin
Antioxidant
Ingredients listed
3 ingredients listedlargest listed: Omega-3 (EPA/DHA) 1,200 mg
Price per serving
$1.73$51.95 · 30 servings
Testing
3rd-party listed · public lab certificate

EPA/DHA split not stored

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 6.4/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$2.89
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.nordic.com
10
Real Mushrooms
Ergo+
Antioxidant
Active per serving
Ergothioneine 10 mgCapsule · 60 servings
Price per serving
$0.50$29.95 · 60 servings
Testing
3rd-party listed · no public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 6.3/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.50
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with realmushrooms.com
Antioxidant
Active per serving
Curcumin 400 mgCapsule · 30 servings
Price per serving
$0.77$22.99 · 30 servings
Testing
3rd-party listed · public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 6.0/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

80%
of trial dose
$1.92
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with nootropicsdepot.com
12
Elysium Health
Format
Antioxidant
Ingredients listed
3 ingredients listedlargest listed: Vitamin C 90 mg
Price per serving
$2.00$60.00 · 30 servings
Testing
3rd-party listed · no public lab certificate

Elemental vs compound: check label

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 5.9/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

45%
of trial dose
$11.11
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.elysiumhealth.com
13
Pure Encapsulations
Liposomal Glutathione
Antioxidant
Active per serving
Glutathione 375 mgSoftgel · 30 servings
Price per serving
$2.25$67.50 · 30 servings
Testing
None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 5.7/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$3.00
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.pureencapsulationspro.com
Antioxidant
Active per serving
Curcumin 1,000 mgCapsule · 60 servings
Price per serving
$0.60$36.00 · 60 servings
Testing
3rd-party listed · no public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 5.3/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.60
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.thorne.com
Antioxidant
Active per serving
Curcumin 500 mgCapsule · 60 servings
Price per serving
$0.50$29.99 · 60 servings
Testing
None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 5.3/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$1.00
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with jarrow.com
16
Renue By Science
Glutathione (Liposomal)
Antioxidant
Active per serving
Glutathione 130 mgCapsule · 90 servings
Price per serving
$0.58$51.95 · 90 servings
Testing
3rd-party listed · no public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 5.3/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

52%
of trial dose
$2.22
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with renuebyscience.com
Antioxidant
Active per serving
Glutathione 500 mgCapsule · 30 servings
Price per serving
$1.33$39.99 · 30 servings
Testing
None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 5.2/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$1.33
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with solaray.com
18
ProHealth Longevity
Cycloastragenol - 10 mg, 30 capsules
Antioxidant
Active per serving
NAC 10 mgCapsule · 30 servings
Price per serving
$1.17$34.97 · 30 servings
Testing
3rd-party listed · public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 5.2/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

2%
of trial dose
$69.94
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.prohealth.com
19
DoNotAge
SulforaBoost®
Antioxidant
Active per serving
Sulforaphane 200 mgCapsule · 366 servings
Price per serving
$0.15$55.00 · 366 servings
Testing
3rd-party listed · no public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 5.1/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

2000%
of trial dose
$0.02
per research-dose day, not label serving
2000% · over 2× trial dose0Trial dose2×
Catalog price · Confirm current price with donotage.org
Antioxidant
Active per serving
Curcumin 500 mgCapsule · 60 servings
Price per serving
$0.31$18.69 · 60 servings
Testing
3rd-party listed · no public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 5.0/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.62
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.lifeextension.com
21
Dorado Nutrition
Epicatechin Extract 750mg
Antioxidant
Active per serving
Epicatechin 750 mgCapsule · 60 servings
Price per serving
$0.42$24.95 · 60 servings
Testing
3rd-party listed · no public lab certificate

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 4.9/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.28
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with doradonutrition.com
Antioxidant
Active per serving
Curcumin 500 mgCapsule · 60 servings
Price per serving
$0.48$28.99 · 60 servings
Testing
None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 4.4/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.97
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with jarrow.com
23
Pure Encapsulations
Curcumin 500 with Bioperine
Antioxidant
Active per serving
Curcumin 500 mgCapsule · 30 servings
Price per serving
$1.70$51.00 · 30 servings
Testing
None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 4.3/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$3.40
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.pureencapsulationspro.com
24
Life Extension
Bio-Luteolin
Antioxidant
Active per serving
Luteolin 20 mgCapsule · 30 servings
Price per serving
$0.55$16.50 · 30 servings
Testing
3rd-party listed · no public lab certificate

Undisclosed amounts noted

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 4.0/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

40%
of trial dose
$2.75
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.lifeextension.com
Antioxidant
Active per serving
Curcumin 1,000 mgPowder · 25 servings
Price per serving
$0.84$20.97 · 25 servings
Testing
None listed

Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Score & research context 3.0/10

Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.

100%
of trial dose
$0.84
per research-dose day, not label serving
0Trial dose2×
Catalog price · Confirm current price with www.bulksupplements.com
Connected

What defines this shelf

Actives used here
Curcumin (8)Glutathione (4)Alpha-Lipoic Acid (2)Astaxanthin (2)Ergothioneine (2)Sulforaphane (2)Quercetin (1)Magnesium (1)Omega-3 (EPA/DHA) (1)Vitamin C (1)Zinc (1)Selenium (1)NAC (1)Epicatechin (1)
Brands competing
Double Wood Supplements (4)Pure Encapsulations (3)DoNotAge (2)Elysium Health (2)Jarrow Formulas (2)Life Extension (2)Toniiq (1)Nordic Naturals (1)Real Mushrooms (1)Nootropics Depot (1)Thorne HealthTech (1)Renue By Science (1)Solaray (1)ProHealth Longevity (1)Dorado Nutrition (1)BulkSupplements (1)
Consumer signals
25 products with consumer ratings 14 high-confidence signals 27,998 total consumer reviews
Other categories
NAD+ booster (52)Omega (37)Mitochondrial (30)Autophagy (25)Metabolic (20)Connective tissue (19)Sirtuin activator (17)Longevity stack (16)Cognition (15)Amino acid (13)Senolytic (10)Adaptogen (9)Multi/greens (9)Vitamin (7)Methyl donor (5)Mineral (5)Microbiome (1)Peptide (1)