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Astaxanthin

A potent carotenoid antioxidant (the colour of salmon and krill); small RCTs improved skin elasticity and oxidative markers. No lifespan data.

2/5· Small human trialsEstimated monthly cost: ≈ 15 €

Dose

4–12 mg daily with a fatty meal.

Timing

With food.

⚠ Cautions

Well tolerated; skin may take on an orange tint.

What it is

From Haematococcus algae; fat-soluble, embeds in cell membranes.

What the evidence shows

Tominaga 2012 (n=30 women, 8 weeks, 6 mg): better skin moisture and elasticity. ITP mouse study (2024): +12% median lifespan in females — not transferable to humans.

Goals

Skin, hair

Sources

Harrison DE et al. Astaxanthin and meclizine extend lifespan in UM-HET3 male mice; fisetin, SG1002, and 4,5-dianilinophthalimide do not – ITP. GeroScience (2024) ↗

Last reviewed: 6 September 2026

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