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Astaxanthin Plus 4 mg

Natural Factors
4.6
★ ★ ★ ★ ★
(1065 ratings)
Astaxanthin 4 mg
Product Image
Score83
A 4 mg H. pluvialis astaxanthin serving is paired with lutein and zeaxanthin for an eye-oriented antioxidant formula. Lutein and zeaxanthin are present in small amounts, while carrier oil and stability information are absent.
How scoring works
Quantity:60 Softgel(s) • (60 servings)
Goals:
Anti-Aging
Skin Health
Vision Support
Anti-Inflammatory Support
Cardiovascular Support

Score 83

A 4 mg H. pluvialis astaxanthin serving is paired with lutein and zeaxanthin for an eye-oriented antioxidant formula. Lutein and zeaxanthin are present in small amounts, while carrier oil and stability information are absent.
How scoring works
$16.77($0.27 per serving)
iHerb
$ 16.77
Amazon
$ 17.47
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Analysis

A 4 mg H. pluvialis astaxanthin serving is paired with lutein and zeaxanthin for an eye-oriented antioxidant formula. The combination is coherent and the softgel suits all three fat-soluble carotenoids.

Lutein and zeaxanthin are present in small amounts, while carrier oil and stability information are absent. The companions add context but do not make this a full-strength macular formula.

It best fits adults wanting general eye and skin antioxidant support in one softgel. Heart and cognitive relevance remains secondary because the blend does not address their main pathways directly.

Who is it for
  • It best fits adults wanting general eye and skin antioxidant support in one softgel
  • Adults seeking antioxidant support
  • Users comfortable with the stated formulation trade-offs
Best for
  • Entry-level eye antioxidant support
  • Astaxanthin with companion carotenoids
  • Simple softgel use

Pros

  • Natural algal astaxanthin
  • Lutein and zeaxanthin add eye focus
  • Softgel supports carotenoid delivery

Cons

  • Companion carotenoid amounts are light
  • Carrier oil is not disclosed
  • Limited cardiovascular and cognitive breadth

Warnings

  • Astaxanthin may add to the effects of blood-pressure or glucose-lowering medicines
  • Use cautiously with anticoagulant or antiplatelet medicines because combined effects are uncertain
  • Use during pregnancy or breastfeeding only with individualized professional guidance

Nutrient quality

87 Highest impact

Natural algal and marigold carotenoids in a softgel gives the formula reasonable ingredient quality. Dose uncertainty or limited delivery detail prevents a confident quality assessment.

Ingredient transparency

85 Highest impact

The meaningful actives and their amounts are clearly identified. Serving guidance and the complete inactive-ingredient list are not fully supplied.

Customer satisfaction

69 High impact

The aggregate rating is favorable and supported by useful review volume. No review excerpts are supplied to assess repeated complaints or purpose-specific experiences.

Value for money

89 Highest impact

Formula quality provides fair value for the category. The effective serving and focused ingredient list compare favorably with similar options.

Report analysis

Goals

Anti-Aging
Anti-Aging
Impact
Highest effect
B+ Goal FitB+ Strength of SupportC+ CoverageA Formula Quality
Astaxanthin · 4 mg

Natural astaxanthin offers targeted antioxidant support for skin, eye, and cellular resilience. The disclosed 4 mg serving is meaningful, while lutein and zeaxanthin add related eye-focused antioxidant coverage.

Human evidence supports selected age-relevant outcomes, although it does not establish broad healthspan effects. The focused softgel provides useful oxidative-stress support but little mitochondrial or structural coverage.

Study evidence
Astaxanthin Supportive 4 studies
Skin Health
Skin Health
Impact
High effect
B Goal FitB+ Strength of SupportC- CoverageA Formula Quality
Astaxanthin · 4 mg

Natural astaxanthin from Haematococcus pluvialis provides targeted antioxidant and photo-protective support at 4 mg. Human evidence is relevant to skin resilience, although the formula does not provide collagen or hydration building blocks.

Small amounts of lutein and zeaxanthin add antioxidant context but are oriented more toward eye support. No carrier oil, trademarked source, or oxidation-protection detail is disclosed, which limits confidence in delivery quality.

Study evidence
Astaxanthin Supportive 12 studies
Vision Support
Vision Support
Impact
High effect
B Goal FitB Strength of SupportC- CoverageA- Formula Quality
Astaxanthin · 4 mg

Astaxanthin provides targeted antioxidant support for retinal tissues and may help with visual fatigue. Its natural algal source and disclosed amount make the main active easy to assess.

Lutein and zeaxanthin add macular pigments, but their amounts are too low for robust macular support. The formula also lacks omega-3s and the broader antioxidant-mineral combination used in established vision formulas.

Study evidence
Astaxanthin Mixed 7 studies
Anti-Inflammatory Support
Anti-Inflammatory Support
Impact
High effect
B- Goal FitB+ Strength of SupportC- CoverageB+ Formula Quality
Astaxanthin · 4 mg

Natural astaxanthin provides targeted antioxidant support that may help protect tissues from oxidative signals tied to inflammation. The 4 mg amount reaches the minimum useful range but is not especially potent.

Lutein and zeaxanthin add complementary carotenoid protection, though their small amounts are more relevant to eye support than broad inflammatory balance. The source is disclosed, while the carrier oil and oxidation-protection details are missing.

Study evidence
Astaxanthin Supportive 18 studies
Cardiovascular Support
Cardiovascular Support
Impact
High effect
C+ Goal FitB- Strength of SupportD CoverageB Formula Quality
Astaxanthin · 4 mg

Astaxanthin may support lipid antioxidant protection and selected blood-flow measures, while lutein and zeaxanthin add small amounts of related carotenoids. The combination is more naturally aligned with eye support than with a broad cardiovascular strategy.

The 4 mg astaxanthin amount reaches a useful lower-end level, while lutein and zeaxanthin are too small to add much cardiovascular depth. Natural algal sourcing is clear, but no carrier oil, branded ingredient, or stability protection is stated.

Study evidence
Astaxanthin Supportive 12 studies
Cognitive Support
Cognitive Support
Impact
Moderate effect
D- Goal FitB+ Strength of SupportD- CoverageB Formula Quality
Astaxanthin · 4 mg

Astaxanthin supplies neural antioxidant support, with lutein and zeaxanthin adding related carotenoid protection. The 4 mg astaxanthin amount reaches the lower end of commonly used intake.

The formula is more closely aligned with antioxidant and eye support than direct memory or attention. Exact active amounts are clear, but lipid delivery, branded sourcing, and stability details are missing.

Study evidence
Astaxanthin Mixed 6 studies
Heart Health
Heart Health
Impact
Moderate effect
D- Goal FitC+ Strength of SupportF CoverageD+ Formula Quality
Astaxanthin · 4 mg

Astaxanthin provides antioxidant activity that may support vascular function, but it is not a primary heart-health ingredient. Lutein and zeaxanthin are mainly eye-health nutrients with little direct cardiovascular contribution.

The 4 mg astaxanthin amount and algal source are transparent, though the dose is modest for cardiovascular research. The focused antioxidant formula is easy to assess but lacks lipid, nitric-oxide, mineral, or cardiac-energy support.

Study evidence
Astaxanthin Supportive 16 studies

Ingredients

IngredientAmount per serving
Astaxanthin (Haematococcus pluvialis)
 4 mg
Lutein (Marigold)
 1 mg
Zeaxanthin (Marigold)
 170 mcg
Gluten Free Adults 18–50 Dairy Free Sugar Free
Report overview
Astaxanthin (Haematococcus pluvialis) · 4 mg OverallScore78
C Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyA+ Value

Astaxanthin from Haematococcus pluvialis provides a well-supported natural source at a clinically relevant dose. The softgel also supplies complementary eye carotenoids, but no carrier oil, trademarked ingredient, or oxidation-protection detail is disclosed. Cost per active amount is low, supporting good value for a straightforward antioxidant formula.

View ingredientView products
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88 Performance

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BioAstin
<p>A 12 mg astaxanthin serving that uses a named Haematococcus pluvialis algae source provides a well-defined antioxidant-focused option. Its 12 mg active amount is higher than the original’s 4 mg serving. The algae source is identified, but the supplied data do not show the extraction ratio or complete carrier details.</p>
86 Performance

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87 Performance

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<p>A 12 mg astaxanthin serving that uses the named Astalif astaxanthin form provides a well-defined antioxidant-focused option. Its 12 mg active amount is higher than the original’s 4 mg serving. The named form improves identification, though complete carrier and extraction details are not supplied.</p>
86 Budget

Astaxanthin 4 mg

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<p>A lower per-serving cost makes the 4 mg astaxanthin dose a more economical alternative. The formula uses a named Haematococcus pluvialis algae source, while its 4 mg active amount matches the original. The algae source is identified, but the supplied data do not show the extraction ratio or complete carrier details.</p>
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<p>A lower per-serving cost makes the 10 mg astaxanthin dose a more economical alternative. The formula uses a named Haematococcus pluvialis algae source, while its 10 mg active amount is higher than the original’s 4 mg serving. The algae source is identified, but the supplied data do not show the extraction ratio or complete carrier details.</p>
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Astaxanthin with AstaReal 6 mg

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<p>No lower cost is established for this candidate, but it remains among the more economical eligible options with a 6 mg astaxanthin dose. The formula uses the named AstaReal astaxanthin form, while its 6 mg active amount is higher than the original’s 4 mg serving. The named form improves identification, though complete carrier and extraction details are not supplied.</p>
86 Value

Hawaiian Astaxanthin 12 mg

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<p>The combination of a 12 mg astaxanthin serving and practical serving economics creates a balanced quality-to-value option. The formula uses a named Haematococcus pluvialis algae source, while its 12 mg active amount is higher than the original’s 4 mg serving. The algae source is identified, but the supplied data do not show the extraction ratio or complete carrier details.</p>
87 Value

Astaxanthin 12 mg

California Gold Nutrition
<p>The combination of a 12 mg astaxanthin serving and practical serving economics creates a balanced quality-to-value option. The formula uses a named Haematococcus pluvialis algae source, while its 12 mg active amount is higher than the original’s 4 mg serving. The algae source is identified, but the supplied data do not show the extraction ratio or complete carrier details.</p>
85 Value

Astaxanthin 12 mg

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<p>The combination of a 12 mg astaxanthin serving and practical serving economics creates a balanced quality-to-value option. The formula uses a named Haematococcus pluvialis algae source, while its 12 mg active amount is higher than the original’s 4 mg serving. The algae source is identified, but the supplied data do not show the extraction ratio or complete carrier details.</p>
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Astaxanthin (AstaReal®) Improved Acute and Chronic Digital Eye Strain in Children: A Randomized Double-Blind Placebo-Controlled Trial.
    Hecht KA; Marwah M; Wood V; Nishida Y; Bach AE; Gerson J; Hom MM; Schnackenberg J; Raote S; Srivastava S; Negi P; Caston E · Advances in therapy · 2025
    Randomized trial64 participantsVision Support forAstaxanthin
  2. Sports and Kinetic Visual Acuity.
    Sawaki K; Kohmura Y; Aoki K; Nakamura M; Murakami S; Suzuki Y · Juntendo Iji zasshi = Juntendo medical journal · 2024
    Narrative reviewVision Support forAstaxanthin
  3. Effects of diet containing astaxanthin on visual function in healthy individuals: a randomized, double-blind, placebo-controlled, parallel study.
    Sekikawa T; Kizawa Y; Li Y; Miura N · Journal of clinical biochemistry and nutrition · 2023
    Randomized trial60 participantsVision Support forAstaxanthin
  4. Benefits and Safety of Astaxanthin in the Treatment of Mild-To-Moderate Dry Eye Disease.
    Tian L; Wen Y; Li S; Zhang P; Wang Y; Wang J; Cao K; Du L; Wang N; Jie Y · Frontiers in nutrition · 2022
    Single-arm trial60 participantsVision Support forAstaxanthin
  5. Nutritional Supplementation for Myopia Prevention and Control: A Systematic Review of Randomized Controlled Trials.
    Martinez-Perez C; Oliveira AP · Nutrients · 2026
    Systematic review9 studies pooledVision Support forAstaxanthin
  6. Astaxanthin, cell membrane nutrient with diverse clinical benefits and anti-aging potential.
    Kidd P · Alternative medicine review : a journal of clinical therapeutic · 2012
    Narrative reviewVision Support Anti-Aging forAstaxanthin
  7. Markers of Hypoxia and Oxidative Stress in Aging Volunteers Ingesting Lycosomal Formulation of Dark Chocolate Containing Astaxanthin.
    Petyaev IM; Klochkov VA; Chalyk NE; Pristensky DV; Chernyshova MP; Kyle NH; Bashmakov YK · The journal of nutrition, health & aging · 2019
    Randomized trial32 participantsAnti-Aging forAstaxanthin
  8. The effectiveness of a standardized rose hip powder, containing seeds and shells of Rosa canina, on cell longevity, skin wrinkles, moisture, and elasticity.
    Phetcharat L; Wongsuphasawat K; Winther K · Clinical interventions in aging · 2016
    Randomized trial34 participantsAnti-Aging Skin Health forAstaxanthin
  9. Systematic Review and Meta-Analysis on the Effects of Astaxanthin on Human Skin Ageing.
    Zhou X; Cao Q; Orfila C; Zhao J; Zhang L · Nutrients · 2021
    Meta-analysis11 studies pooledAnti-Aging forAstaxanthin
  10. The anti-inflammatory and antioxidant effects of astaxanthin as an adjunctive therapy in community-acquired pneumonia: a randomized controlled trial.
    Youssef FM; Ateyya H; Hanna Samy AE; Elmokadem EM · Frontiers in pharmacology · 2025
    Randomized trial80 participantsAnti-Inflammatory Support forAstaxanthin
  11. The Role of Astaxanthin as an Antioxidant and Anti-Inflammatory Agent in Human Health: A Systematic Review.
    Malcangi G; Inchingolo AM; Casamassima L; Trilli I; Ferrante L; Longo M; Inchingolo F; Marinelli G; Palermo A; Dipalma G; Inchingolo AD · International journal of molecular sciences · 2026
    Systematic review15 studies pooledAnti-Inflammatory Support forAstaxanthin
  12. Astaxanthin ameliorates inflammation, oxidative stress, and reproductive outcomes in endometriosis patients undergoing assisted reproduction: A randomized, triple-blind placebo-controlled clinical trial.
    Rostami S; Alyasin A; Saedi M; Nekoonam S; Khodarahmian M; Moeini A; Amidi F · Frontiers in endocrinology · 2023
    Randomized trial50 participantsAnti-Inflammatory Support forAstaxanthin
  13. Astaxanthin Modulates Inflammation in Type 2 Diabetes via Regulation of microRNAs, Lysophosphatidylcholine, and α-Hydroxybutyrate.
    Sharifi-Rigi A; Zal F; Aarabi MH; Dehghani M; Roustaei Rad N; Taghiyar S · International journal of endocrinology · 2025
    Randomized trial50 participantsAnti-Inflammatory Support forAstaxanthin
  14. Redox-sensitive miRNAs and Humanin could mediate effects of exercise and astaxanthin on oxidative stress and inflammation in type 2 diabetes.
    Basereh A; Khoramipour K; Hosseini N; HajHosseini M; Khodabakhshi A; Amirkhosravi L; Khoramipour K · Scientific reports · 2025
    Randomized trial90 participantsAnti-Inflammatory Support forAstaxanthin
  15. Astaxanthin, a natural antioxidant, lowers cholesterol and markers of cardiovascular risk in individuals with prediabetes and dyslipidaemia.
    Ciaraldi TP; Boeder SC; Mudaliar SR; Giovannetti ER; Henry RR; Pettus JH · Diabetes, obesity & metabolism · 2023
    Randomized trial34 participantsCardiovascular Support forAstaxanthin
  16. Antioxidant Lipid Supplement on Cardiovascular Risk Factors: A Systematic Review and Meta-Analysis.
    Wan S; Wu W; Zhang Y; He J; Wang X; An P; Luo J; Zhu Y; Luo Y · Nutrients · 2024
    Meta-analysisCardiovascular Support Heart Health forAstaxanthin
  17. Administration of natural astaxanthin increases serum HDL-cholesterol and adiponectin in subjects with mild hyperlipidemia.
    Yoshida H; Yanai H; Ito K; Tomono Y; Koikeda T; Tsukahara H; Tada N · Atherosclerosis · 2010
    Randomized trial61 participantsCardiovascular Support Heart Health forAstaxanthin
  18. Effects of Astaxanthin Supplementation on Glycemic Control and Lipid Profile in Patients With Prediabetes and Type 2 Diabetes: A Meta-Analysis of Randomized Controlled Trials.
    Molani-Gol R; Bohlouli Sardroudi S; Rafraf M · Nutrition and metabolic insights · 2026
    Meta-analysis403 participants9 studies pooledCardiovascular Support Heart Health forAstaxanthin
  19. Astaxanthin Supplemented with High-Intensity Functional Training Decreases Adipokines Levels and Cardiovascular Risk Factors in Men with Obesity.
    Saeidi A; Nouri-Habashi A; Razi O; Ataeinosrat A; Rahmani H; Mollabashi SS; Bagherzadeh-Rahmani B; Aghdam SM; Khalajzadeh L; Al Kiyumi MH; Hackney AC; Laher I; Heinrich KM; Zouhal H · Nutrients · 2023
    Randomized trial68 participantsCardiovascular Support forAstaxanthin
  20. Effects of astaxanthin-rich Haematococcus pluvialis extract on cognitive function: a randomised, double-blind, placebo-controlled study.
    Katagiri M; Satoh A; Tsuji S; Shirasawa T · Journal of clinical biochemistry and nutrition · 2012
    Randomized trial96 participantsCognitive Support forAstaxanthin
  21. Effect of astaxanthin-rich extract derived from Paracoccus carotinifaciens on cognitive function in middle-aged and older individuals.
    Hayashi M; Ishibashi T; Maoka T · Journal of clinical biochemistry and nutrition · 2020
    Clinical trial54 participantsCognitive Support forAstaxanthin
  22. The Effects of Astaxanthin on Cognitive Function and Neurodegeneration in Humans: A Critical Review.
    Queen CJJ; Sparks SA; Marchant DC; McNaughton LR · Nutrients · 2024
    Narrative reviewCognitive Support forAstaxanthin
  23. Effects of Astaxanthin Supplementation on Fatigue, Motor Function and Cognition: A Meta-Analysis of Randomized Controlled Trials.
    Liu C; Dong X; Jia J; Ha M · Biological research for nursing · 2024
    Meta-analysis346 participants11 studies pooledCognitive Support forAstaxanthin
  24. Astaxanthin and improvement of dementia: A systematic review of current clinical trials.
    Utomo NP; Pinzon RT; Latumahina PK; Damayanti KRS · Cerebral circulation - cognition and behavior · 2024
    Systematic reviewCognitive Support forAstaxanthin
  25. Impact of astaxanthin on oxidative markers, uric acid, and clinical symptoms in heart failure: a randomized clinical trial.
    Mohammadi SG; Shafie D; Feizi A; Bagherniya M; Ahmadi AR; Kafeshani M · BMC cardiovascular disorders · 2025
    Randomized trial80 participantsHeart Health forAstaxanthin
  26. Astaxanthin Influence on Health Outcomes of Adults at Risk of Metabolic Syndrome: A Systematic Review and Meta-Analysis.
    Leung LY; Chan SM; Tam HL; Wong ES · Nutrients · 2022
    Meta-analysis321 participants7 studies pooledHeart Health forAstaxanthin
  27. The Protective Role of Astaxanthin for UV-Induced Skin Deterioration in Healthy People-A Randomized, Double-Blind, Placebo-Controlled Trial.
    Ito N; Seki S; Ueda F · Nutrients · 2018
    Randomized trial23 participantsSkin Health forAstaxanthin
  28. Supplementating with dietary astaxanthin combined with collagen hydrolysate improves facial elasticity and decreases matrix metalloproteinase-1 and -12 expression: a comparative study with placebo.
    Yoon HS; Cho HH; Cho S; Lee SR; Shin MH; Chung JH · Journal of medicinal food · 2015
    Randomized trial44 participantsSkin Health forAstaxanthin
  29. Continuous astaxanthin intake reduces oxidative stress and reverses age-related morphological changes of residual skin surface components in middle-aged volunteers.
    Chalyk NE; Klochkov VA; Bandaletova TY; Kyle NH; Petyaev IM · Nutrition research (New York, N.Y.) · 2018
    Single-arm trial31 participantsSkin Health forAstaxanthin
  30. Cosmetic benefits of astaxanthin on humans subjects.
    Tominaga K; Hongo N; Karato M; Yamashita E · Acta biochimica Polonica · 2012
    Other66 participantsSkin Health forAstaxanthin