Antioxidant Supplements

Reishi Mushroom Extract Supplement
Immune Health
Antioxidants
Brain Health

From
$19.95
Mushroom Max Supplement
Immune Health
Brain Health

From
$19.95
Blue Spirulina Powder
Antioxidants
Heart & Vessels

$19.95
Moringa Supplement
Anxiety & Stress
Antioxidants
Immune Health

From
$19.95
L-Ergothioneine Supplement
Antioxidants
Healthy Aging

From
$19.95
Best Before Date: September 2026

Bee Pollen Supplement
Antioxidants
Heart & Vessels
Liver Health

$17.46
~~$24.95~~
Tiger Milk Mushroom Supplement
Respiratory Health
Immune Health
Antioxidant

From
$19.95
Cissus Quadrangularis Extract Supplement
Bone & Joint
Antioxidants

From
$29.95
Mullein Leaf Extract Supplement
Respiratory Health
Antioxidants
Immune Health

From
$19.95
Turmeric Drops
Antioxidants
Gut Health

From
$19.95
Andrographis Supplement
Immune Health
Antioxidants

From
$19.95
Sold out

Chlorophyll Supplement
Antioxidants
Gut Health

From
$19.95
Zeolite Drops
Gut Health
Antioxidant

From
$19.95

Overview

Oxidative stress — the imbalance between free radical production and the body's antioxidant defenses — is a root driver of aging, inflammation, and chronic disease. Dietary antioxidants from fruits and vegetables help, but targeted supplementation can address specific pathways that food alone may not cover. Double Wood's antioxidant collection features both endogenous compounds (those the body produces itself, like glutathione and NAC) and exogenous polyphenols and flavonoids with strong bioavailability and clinical relevance.

What To Look For

The collection includes both direct antioxidants and antioxidant precursors. Glutathione (in S-Acetyl and Liposomal forms) is the body's master antioxidant, and supplementing with more bioavailable forms is studied for cellular and immune protection. NAC (N-Acetyl Cysteine) is the precursor to glutathione and also a direct antioxidant with respiratory, brain, and liver benefits. Quercetin, Resveratrol, Fisetin, Pterostilbene, Astaxanthin, Luteolin, and Apigenin are polyphenols and flavonoids with targeted antioxidant mechanisms. Alpha Lipoic Acid is both water- and fat-soluble, making it an unusually broad-spectrum antioxidant. Turkey Tail and Daily Fruit & Veggie supplement dietary polyphenol intake.

Frequently Asked Questions

What is the most powerful antioxidant supplement?

Glutathione is considered the body's most important endogenous antioxidant. Because standard oral glutathione has low bioavailability, Double Wood offers two enhanced forms: S-Acetyl L-Glutathione (more stable and gut-resistant than standard glutathione) and Liposomal Glutathione (encapsulated in lipid nanoparticles for improved absorption). Astaxanthin is often cited as the most potent exogenous antioxidant, estimated to be many times more powerful than vitamin E.

Should I take NAC or glutathione directly?

NAC is a precursor to glutathione and has the advantage of also acting as a direct antioxidant and mucolytic. Taking NAC allows the body to regulate its own glutathione synthesis. Direct glutathione supplementation (especially in S-Acetyl or Liposomal form) provides more immediate support when the goal is acute cellular protection. Both approaches have merit; some people pair them.

Polyphenol absorption varies significantly, but high-quality extracts used in clinical research do show measurable effects. Quercetin has multiple trials supporting immune and antioxidant benefits. Resveratrol is well-studied for cardiovascular and sirtuin activation effects. Pterostilbene — a resveratrol analog — has better oral bioavailability and is gaining traction in longevity research. They can be paired effectively for complementary coverage.

Are polyphenols like Quercetin and Resveratrol worth supplementing?

- All Double Wood supplements are single-ingredient, third-party tested for purity and potency, and manufactured in cGMP-certified U.S. facilities. Certificates of Analysis are available for every product.