What is astaxanthin?Astaxanthin is a red carotenoid and antioxidant that is naturally produced by microalgae and may also be produced synthetically (see What It Is).
What does astaxanthin do?Astaxanthin supplements are promoted for a wide variety of uses, such as increasing physical endurance, reducing inflammation, reducing wrinkles, protecting from sunburn, and lowering triglyceride levels. However, the evidence supporting these uses is mixed (see What It Does).
Which is the best astaxanthin supplement?All of the products tested in this review contained natural astaxanthin, however, one did not contain the full amount claimed. We found that some products were much less expensive than others, enabling you to get the same amount of astaxanthin for as little as one-third the cost. See ConsumerLab's Top Picks for low-dose and high-dose astaxanthin.
How do you take astaxanthin?Because astaxanthin is fat-soluble, take it with a meal that contains fats or oils to increase absorption. There is no established safe and effective dose for astaxanthin, but daily doses between 4 mg and 18 mg have shown some benefits without reported side effects in clinical studies, although long-term studies are needed. (See ConsumerTips). Red coloration of stool may occur at a dose of 20 mg or more (See Concerns and Cautions for more information).
Astaxanthin supplement brands tested and compared in this review
BioAstin Hawaiian Astaxanthin 12 mg
California Gold Nutrition Astaxanthin 12 mg
Carlson Astaxanthin Gummies With Vitamin C - Natural Cherry Flavor
Deva Vegan Astaxanthin
Doctor's Best Astaxanthin With AstaReal
Dr. Mercola Astaxanthin
Healthy Origins Natural Astaxanthin
Puritan's Pride Natural Astaxanthin 5 mg
Solgar Natural Astaxanthin 5 mg
Trunature [Costco] Astaxanthin
- Which astaxanthin supplements passed or failed our testing and why
- ConsumerLab's Top Picks among astaxanthin supplements for quality and value
- The clinical evidence for, or against, using astaxanthin for physical endurance, inflammatory conditions such rheumatoid arthritis and carpal tunnel syndrome, lowering triglycerides, and skin improvement
- The amount and form of astaxanthin in each supplement and how these compare amounts used in clinical studies
- Differences between the natural and synthetic forms of astaxanthin
- What to look for on astaxanthin supplement labels
- Astaxanthin dosage for specific uses
- Potential side effects and drug interactions with astaxanthin
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