Outcome
    Limited

    Astaxanthin for Oxidative Damage Repair

    Astaxanthin lowers oxidative markers in small trials, but no meaningful clinical outcome has been demonstrated.

    Overview

    Astaxanthin lowers oxidative markers in small trials, but no meaningful clinical outcome has been demonstrated.

    Verdict

    Mixed evidence

    How It Works

    A xanthophyll carotenoid that spans the cell membrane, quenching singlet oxygen at both lipid and aqueous interfaces without becoming pro-oxidant at typical doses.

    Dosing & Protocol

    Typical dose

    Recommended dose
    4-12mg/day with a fat-containing meal
    Expected timeframe
    8-12 weeks

    Protocol

    form
    Natural astaxanthin from Haematococcus pluvialis in oil
    timing
    With the largest fat-containing meal of the day
    duration
    8-12 weeks
    titration
    Increase to 12 mg/day after two weeks if you want the top of the studied range
    measurement
    Malondialdehyde or total antioxidant capacity through a clinician; otherwise skin condition and exercise recovery
    starting dose
    4 mg daily with a fat-containing meal

    Evidence

    What the studies say

    Small RCTs at 4-12mg/day report reduced malondialdehyde and isoprostanes, plus modest skin elasticity benefits. Studies are short, small, and frequently manufacturer-sponsored. Outcome-level evidence is absent.

    Effects of Astaxanthin Supplementation on Oxidative Stress

    Score: 6/10
    2020
    meta_analysis

    Wu D, Xu H, Chen J +1 more

    This review suggested that the antioxidant effect of astaxanthin on humans is unclear

    View source

    Safety

    Caveats

    Harmless at typical doses but expensive relative to demonstrated benefit. Can tint skin slightly at high intakes.

    Less likely to help if

    People with low baseline oxidative stress, and anyone taking it without dietary fat.

    Medical Disclaimer

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    Individual results may vary. The statements on this website have not been evaluated by the Food and Drug Administration. Products and information are not intended to diagnose, treat, cure, or prevent any disease.