Siim Land: Why People Are Disappointed with Astaxanthin

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Peer-Reviewed Research
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Siim Land

Video Summary · May 4, 2026

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Key Takeaways

  • Astaxanthin may require extremely high doses (1.8g/day for humans) for lifespan extension, based on mouse studies.
  • Take 4-20mg astaxanthin daily for skin protection (UV resistance, moisturization, elasticity) and eye health (reduces digital eye strain).
  • Use 12mg+ astaxanthin for 12+ weeks to see CRP reduction (19-26%) and modest cholesterol improvements (3% HDL increase, 3.5% LDL decrease).
  • Prioritize astaxanthin for non-longevity benefits (skin/eyes) rather than lifespan extension, as human-equivalent longevity doses are impractical.

Supplements & Protocols Mentioned

  • Astaxanthin: 2-12mg/day for skin benefits (4-16 weeks), 4mg/day for eye strain (84 days), 12mg+/day for CRP reduction (12+ weeks).

Notable Quotes

“The life extension effects seen in the initial study were achieved with a huge dose of astaxanthin that you’re just not simply going to obtain from food or supplements.”

Bottom Line

Take 4-20mg astaxanthin daily for skin and eye protection, but don’t expect lifespan benefits without impractical megadoses (1.8g/day).

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Medical Disclaimer

This article is for informational purposes only and does not constitute medical advice. The research summaries presented here are based on published studies and should not be used as a substitute for professional medical consultation. Always consult a qualified healthcare provider before making any changes to your health regimen.

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