Dr. Mercola Organic Astaxanthin
- Astaxanthin
- Capsule
- Astaxanthin
- 90
An organic, single ingredient astaxanthin capsule dosed at 4mg, sized for about three months of daily use.
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How it ranks among the 64 astaxanthin we track
4.6★ across 244 Amazon ratings, Bayesian-smoothed toward the category average.
244 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
200+ bought on Amazon last month.
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
Dr. Mercola's astaxanthin capsules provide 4mg of astaxanthin per serving from organic microalgae extract, packaged as 90 capsules for 90 servings. It is positioned as an antioxidant support supplement.
Astaxanthin is a carotenoid pigment extracted from microalgae, and the organic sourcing claim here refers to how the algae itself is grown rather than a synthetic version of the compound. A one capsule per day count over 90 servings gives roughly three months of use per bottle.
- 4mg astaxanthin per capsule
- 90 capsules, 90 day supply
- Organic microalgae extract
- Non-GMO, gluten free, soy free
Who it's for
Suits buyers already interested in antioxidant supplementation who want an organic sourced astaxanthin rather than a synthetic one. Not aimed at anyone wanting a multi ingredient antioxidant blend.
Strengths and trade-offs
Drawn from this product's published specifications.
- Organic microalgae sourced astaxanthin
- Non-GMO, gluten free and soy free
- 90 day supply in one bottle
- Single ingredient formula with no added antioxidants
- Capsule form only, no liquid or gummy option
Performance notes
Astaxanthin from microalgae is the natural source most commonly referenced for this compound, as opposed to synthetic versions made for other uses like aquaculture feed. The 4mg dose here reflects a standard single ingredient serving rather than a mega dose formulation.
Specifications
| Brand | DR |
|---|---|
| Model | 10345 |
| Form | Capsule |
| Supplement Type | Astaxanthin |
| Count | 90 |
| Flavor | Astaxanthin |
| Benefits | Heart Health Support |
| Allergens | Gluten Free |
Other DR astaxanthin
How it compares
This product against the closest alternatives we track in astaxanthin.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Dr. Mercola Organic AstaxanthinThis product | 4.6 / 5 | 244 | 4.1 / 5 |
| Sports Research Triple Strength Astaxanthin 12mg w/Organic Coconut OilSports | 4.6 / 5 | 8,800 | 4.6 / 5 |
| Nutrex Hawaii BioAstin Hawaiian AstaxanthinNutrex | 4.5 / 5 | 12,900 | 4.5 / 5 |
| Nutricost Astaxanthin 12mgNutricost | 4.6 / 5 | 3,600 | 4.5 / 5 |
| Micro Ingredients Astaxanthin 12mg with MCT OilMicro | 4.5 / 5 | 5,000 | 4.5 / 5 |
Similar astaxanthin from other brands
Questions about the DR 10345
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Where does the astaxanthin come from?
It is extracted from organic microalgae rather than made synthetically.
How long does one bottle last?
The 90 capsule bottle is sized for 90 servings, about three months at one capsule daily.
Is this product gluten free?
Yes, it is listed as gluten free as well as non-GMO and soy free.