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evidence · mechanism · dose
Supplements/Compound

Astaxanthin (Haematococcus)

Algae carotenoid antioxidant.

Eye HealthSkin, Hair & Nails

Overview

Algae carotenoid antioxidant.

Natural sources
    Common forms

      Mechanism of action

      Crosses BBB and retina; powerful antioxidant.

      Pathways

        Effects on the body

        Organ system effects

        Evidence-based benefits

        Reduces eye strain

        Moderate evidence

        Potential side effects

        Common
        • · Skin pigmentation at high dose
        Rare
          Serious

            Drug interactions

            No notable interactions reported.

            Supplement interactions

            Pairs well with

            None listed.

            Avoid combining with

            No specific avoidances listed.

            Dosing & bioavailability

            Typical dose
            4–12 mg

            Where to buy

            Affiliate-style search links to reputable retailers. We don't endorse specific brands — verify third-party testing (USP, NSF, Informed Sport) before purchase.

            Compound
            Astaxanthin …
            Amazon
            Wide selection · fast shipping
            Compound
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            iHerb
            Global delivery · curated brands
            Compound
            Astaxanthin …
            Thorne
            Practitioner-grade · NSF tested

            Scientific evidence (8)

            RCTJ Trad Med · 2002

            Astaxanthin and eye strain

            Tsukahara H, et al.

            40 VDT workers

            Key findings

            Reduced accommodative dysfunction.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: Astaxanthin (Haematococcus) — Reduces eye strain

            Live PubMed search

            Live results for "Astaxanthin (Haematococcus) Reduces eye strain" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching Astaxanthin (Haematococcus) and "Reduces eye strain". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: Astaxanthin (Haematococcus) — randomized controlled trial

            Live PubMed search

            Live results for "Astaxanthin (Haematococcus) randomized controlled trial" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching Astaxanthin (Haematococcus) and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: Astaxanthin (Haematococcus) — meta-analysis

            Live PubMed search

            Live results for "Astaxanthin (Haematococcus) meta-analysis" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching Astaxanthin (Haematococcus) and "meta-analysis". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: Astaxanthin (Haematococcus) — pharmacokinetics

            Live PubMed search

            Live results for "Astaxanthin (Haematococcus) pharmacokinetics" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching Astaxanthin (Haematococcus) and "pharmacokinetics". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: Astaxanthin (Haematococcus) — safety adverse events

            Live PubMed search

            Live results for "Astaxanthin (Haematococcus) safety adverse events" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching Astaxanthin (Haematococcus) and "safety adverse events". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: Astaxanthin (Haematococcus) — dose response

            Live PubMed search

            Live results for "Astaxanthin (Haematococcus) dose response" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching Astaxanthin (Haematococcus) and "dose response". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewGoogle Scholar · 1970

            Google Scholar: Astaxanthin (Haematococcus) — clinical evidence

            Live Scholar search

            Cross-database citation index for Astaxanthin (Haematococcus) as it relates to "clinical evidence".

            Key findings

            Includes preprints, theses, and journal articles. Useful for tracking citation counts and follow-on work.

            Open study
            Educational use only. This profile is not medical advice. Consult a qualified healthcare professional before starting any supplement, especially if you take prescription medication or have a chronic condition.