Overview
Algae carotenoid antioxidant.
- Endogenously produced or biosynthesized molecule
- Standardized pharmaceutical- or food-grade supplement
- Combined with cofactors that improve absorption or activity
- Capsule or softgel
- Powder
- Sublingual or buccal
- Liposomal liquid
Mechanism of action
Crosses BBB and retina; powerful antioxidant.
- · Crosses BBB
- · powerful antioxidant
Effects on the body
Organ system effects
Astaxanthin (Haematococcus) concentrates in ocular tissues (macula, retina, lens) where it contributes to photoprotection or antioxidant defense.
Astaxanthin (Haematococcus) supports collagen synthesis, antioxidant defense, or barrier function in skin and integumentary tissues.
Evidence-based benefits
Reduces eye strain
Moderate evidencePotential side effects
- · Skin pigmentation at high dose
Drug interactions
Supplement interactions
- Collagen peptidesProvides amino acid substrate for connective tissue synthesis.
- Vitamin CRequired cofactor for collagen hydroxylation.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
Affiliate links — we may earn a commission at no extra cost to you. Amazon code supplementsch-20 is auto-applied at checkout. We don't endorse specific brands; verify third-party testing (USP, NSF, Informed Sport) before purchase.
Third-party testedIndependently verified Astaxanthin (Haematococcus) — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.Astaxanthin (Haematococcus) third party tested NSF
CapsulesPre-measured Astaxanthin (Haematococcus) capsules — easiest for travel and consistent daily dosing without scoops or scales.Astaxanthin (Haematococcus) capsules
PowderBulk unflavored Astaxanthin (Haematococcus) powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.Astaxanthin (Haematococcus) powder unflavored
Best sellersMost-purchased Astaxanthin (Haematococcus) products on Amazon — a quick way to see what's reviewed widely before you commit.Astaxanthin (Haematococcus) best sellerScientific evidence8Show studiesHide studies
Astaxanthin and eye strain
Tsukahara H, et al.
40 VDT workers
Reduced accommodative dysfunction.
PubMed: Astaxanthin (Haematococcus) — Reduces eye strain
Live PubMed search
Live results for "Astaxanthin (Haematococcus) Reduces eye strain" across the PubMed/MEDLINE peer-reviewed index.
Opens current human and preclinical literature matching Astaxanthin (Haematococcus) and "Reduces eye strain". Filter by RCT, meta-analysis, or year on the results page.
PubMed: Astaxanthin (Haematococcus) — randomized controlled trial
Live PubMed search
Live results for "Astaxanthin (Haematococcus) randomized controlled trial" across the PubMed/MEDLINE peer-reviewed index.
Opens current human and preclinical literature matching Astaxanthin (Haematococcus) and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.
PubMed: Astaxanthin (Haematococcus) — meta-analysis
Live PubMed search
Live results for "Astaxanthin (Haematococcus) meta-analysis" across the PubMed/MEDLINE peer-reviewed index.
Opens current human and preclinical literature matching Astaxanthin (Haematococcus) and "meta-analysis". Filter by RCT, meta-analysis, or year on the results page.
PubMed: Astaxanthin (Haematococcus) — pharmacokinetics
Live PubMed search
Live results for "Astaxanthin (Haematococcus) pharmacokinetics" across the PubMed/MEDLINE peer-reviewed index.
Opens current human and preclinical literature matching Astaxanthin (Haematococcus) and "pharmacokinetics". Filter by RCT, meta-analysis, or year on the results page.
PubMed: Astaxanthin (Haematococcus) — safety adverse events
Live PubMed search
Live results for "Astaxanthin (Haematococcus) safety adverse events" across the PubMed/MEDLINE peer-reviewed index.
Opens current human and preclinical literature matching Astaxanthin (Haematococcus) and "safety adverse events". Filter by RCT, meta-analysis, or year on the results page.
PubMed: Astaxanthin (Haematococcus) — dose response
Live PubMed search
Live results for "Astaxanthin (Haematococcus) dose response" across the PubMed/MEDLINE peer-reviewed index.
Opens current human and preclinical literature matching Astaxanthin (Haematococcus) and "dose response". Filter by RCT, meta-analysis, or year on the results page.
Google Scholar: Astaxanthin (Haematococcus) — clinical evidence
Live Scholar search
Cross-database citation index for Astaxanthin (Haematococcus) as it relates to "clinical evidence".
Includes preprints, theses, and journal articles. Useful for tracking citation counts and follow-on work.