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Antioxidant Supplements

  • Astaxanthin Supplement

    Antioxidants
    Brain Health
    Immune Health

    From

    $25.95

  • Apigenin Supplement

    Sleep
    Antioxidants
    Anxiety & Stress

    From

    $24.95

  • Shilajit Resin Supplement

    Antioxidants
    Focus & Energy

    From

    $19.95

  • Quercetin Supplement

    Immune Health
    Antioxidants

    From

    $24.95

  • Fisetin Supplement

    Healthy Aging

    From

    $22.95

  • Resveratrol Supplement

    Hair Skin and Nails
    Healthy Aging
    Heart & Vessels

    From

    $19.95

  • N-Acetyl Cysteine (NAC) Supplement

    Liver Health
    Antioxidants
    Brain Health

    From

    $29.95

  • Citrus Bergamot Extract Supplement

    Heart & Vessels
    Antioxidants

    From

    $24.95

  • Irish Sea Moss Supplement

    Antioxidants
    Gut Health
    Immune Health

    From

    $19.95

  • Benfotiamine Supplement

    Heart & Vessels
    Antioxidants
    Brain Health

    From

    $19.95

  • S-Acetyl L-Glutathione Supplement

    Antioxidants
    Gut Health
    Liver Health

    From

    $32.95

  • Turkey Tail Mushroom Supplement

    Immune Health
    Antioxidants
    Gut Health

    From

    $19.95

  • Liposomal Glutathione Supplement

    Gut Health
    Antioxidants
    Liver Health

    From

    $29.95

  • Lactoferrin Supplement

    Gut Health
    Antioxidants

    From

    $26.95

  • Cistanche Extract Supplement

    Antioxidants
    Liver Health

    From

    $19.95

  • Alpha Lipoic Acid Supplement

    Antioxidant
    Heart & Vessels
    Healthy Aging

    From

    $19.95

  • Sulforaphane Supplement

    Heart & Vessels
    Gut Health

    From

    $19.95

  • Korean Panax Ginseng Supplement

    Focus & Energy
    Antioxidants

    From

    $24.95

  • Daily Fruit & Veggie Supplement

    Antioxidants
    Healthy Aging
    Immune Health

    From

    $19.95

  • Luteolin Supplement

    Antioxidants
    Heart & Vessels

    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.
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