US
Nutricost

Nutricost Astaxanthin 6mg

  • Astaxanthin
  • Softgel
  • Astaxanthin
  • 120
4.6/ 5 on Amazon585Amazon ratings1,000+bought last month4.1ProductDome score
  • More reviewed than 63%
Medium confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYou want a plain, single ingredient astaxanthin softgel at 6mg per dose.

A single ingredient 6mg astaxanthin softgel sized for a 4 month supply, useful for buyers who want a plain, non-GMO version rather than a blended formula.

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ProductDome scorecard

How it ranks among the 64 astaxanthin we track

4.1/ 5ProductDome scoreMedium confidence
Owner satisfaction · 56% of scorecategory median 4.6★4.6

4.6★ across 585 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 352 ratings3.5

585 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score4.1

1,000+ bought on Amazon last month.

Data quality · 11% of score2.5

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 64 astaxanthin we track - how the scorecard works · full astaxanthin data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

Astaxanthin softgels from Nutricost at 6mg per softgel, 120 softgels per bottle, labeled a 4 month supply, non-GMO and gluten free.

Astaxanthin is a carotenoid antioxidant typically taken as a softgel since it is fat soluble, and the 6mg dose here sits toward the higher end of common astaxanthin serving sizes. The 4 month supply framing, roughly one softgel a day, makes this a lower frequency reorder than many daily supplements.

  • 6mg astaxanthin per softgel
  • 120 softgels, a 4 month supply
  • Non-GMO
  • Gluten free

Who it's for

Suits buyers who want a straightforward, single ingredient astaxanthin softgel at a defined dose rather than a blended antioxidant formula. Not for anyone wanting astaxanthin bundled with other antioxidants in one softgel.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • 6mg astaxanthin per softgel
  • 120 count bottle sized as a 4 month supply
  • Gluten free, non-GMO
What to check first
  • Single ingredient formula, no added absorption boosters mentioned
  • 4 month framing assumes one softgel daily, which may not match every buyer's intended dose

Performance notes

Astaxanthin is fat soluble, which is why it is packaged as a softgel rather than a tablet; taking it alongside a meal containing some fat is the common approach for absorption, though this listing does not spell out that instruction itself.

Specifications

BrandNutricost
ModelNTC-31059
FormSoftgel
Supplement TypeAstaxanthin
Count120
FlavorUnflavoured
BenefitsAntioxidant
DietGluten Free
AllergensGluten Free

How it compares

This product against the closest alternatives we track in astaxanthin.

ProductAmazon ratingRatingsProductDome score
Nutricost Astaxanthin 6mgThis product4.6 / 55854.1 / 5
Sports Research Triple Strength Astaxanthin 12mg w/Organic Coconut OilSports4.6 / 58,8004.6 / 5
Nutrex Hawaii BioAstin Hawaiian AstaxanthinNutrex4.5 / 512,9004.5 / 5
Micro Ingredients Astaxanthin 12mg with MCT OilMicro4.5 / 55,0004.5 / 5
Astaxanthin - Triple Strength 12mg (Only Patented Astaxanthin (Astrareal) with 70+ Human…Astaxanthin4.6 / 52,5004.5 / 5
Frequently asked

Questions about the Nutricost NTC-31059

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

How much astaxanthin is in each softgel?

6mg.

How long does one bottle last?

120 softgels, labeled as a 4 month supply.

Is this astaxanthin gluten free?

Yes.