Astaxanthin 4 mg
WhatToTrustTM Score
12345678910
NOW
Last updated: Feb 26, 2026
Astaxanthin is a naturally occurring carotenoid with a unique structure that is known to be a potent free radical scavenger.* Because astaxanthin freely crosses the blood-brain and blood-retina barriers, it can neutralize free radicals in the eye and central nervous system.* Scientific studies also demonstrate that astaxanthin can support the body’s healthy and balanced immune system responses.* This NOW product features Zanthin®, which can help to support overall ocular health and promote a healthy nervous system.*
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Astaxanthin 4 mg Ingredients*
We only evaluate bioactive ingredients—the ones that truly contribute to a product's performance. Below is a list of bioactive ingredients found in this product.
For each ingredient, the quantity in parentheses indicates the amount per serving.
Astaxanthin is a powerful carotenoid derived from the microalgae Haematococcus pluvialis, primarily recognized for its potent antioxidant properties and its potential to support overall health, including eye, brain, joint, skin, and cardiovascular health. AstaReal® is a registered trademark of Fuji Chemical Industries Co., Ltd.
*These product and ingredient description statements have not been evaluated by the Food and Drug Administration (FDA). This product or its ingredients are not intended to diagnose, treat, cure or prevent any disease.
Product description and ingredient list are obtained from the product's brand/company website. Ingredient description is provided by our expert.
WhatToTrustTM scores are based on ingredient quality tests as well as pre-clinical and clinical testing to ensure that a product is scientifically developed and manufactured.
Breakdown of WhatToTrustTM Score for this product
WhatToTrustTM Science Score
10/10
Ingredient Quality Testing (Batch-to-Batch Testing)
Identity and Potency Testing
yes
Purity/Contaminant Testing
yes
Ingredient Validation Testing
Ingredient Validation Pre-clinical Testing (non-Canomiks test)
yes
CanTrust by Canomiks® Ingredient Validation Pre-clinical Testing and Certification
no
Ingredient Clinical Trial/Testing
yes
Borrowed Science
no
Product Validation Testing
Product Validation Pre-clinical Testing (non-Canomiks test)
yes
CanTrust by Canomiks® Product Validation Pre-clinical Testing and Certification
no
Product Clinical Trial/Testing
yes
Borrowed Science
no
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WhatToTrustTM Score
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