AstaReal® Astaxanthin
Ranking Among the Most Powerful Fat-Soluble Antioxidants Available!
4 mg
Typical astaxanthin formulas contain 4 mg per serving, falling short in delivering all possible benefits for the heart, eyes, skin and muscles.
6 mg
Our formula delivers a 6 mg serving of high-grade AstaReal®, making it superior to competitors for supporting healthy vision, skin, blood flow and muscular endurance.
AstaReal® has shown to be a superior free radical quencher when compared to other antioxidants like coenzyme Q10 and green tea.

One of the World's Most Studied Brands of Astaxanthin
AstaReal® for Healthy Vision, Skin, Blood Flow and Muscular Endurance
It's one of the most widely studied antioxidants — with research spanning skin health, eye function, athletic performance and recovery. AstaReal® has a unique structure allowing it to cover the cell membrane and provide antioxidant support in all layers, while other antioxidants are more limited. Isotonix® Astaxanthin uses only AstaReal®, sustainably sourced astaxanthin, adding to its already remarkable scientific backing.

Product Classification

Isotonic

Good Manufacturing Practices

Vegan

Dairy Free

Gluten-Free

No Detectable GMO
Give Your Body the Protection it Deserves
Isotonix® Astaxanthin contains powerful antioxidants — two that are fat soluble and one that is water soluble — that synergistically work to protect both sides of the cell membrane. These three ingredients enhance the power of their partners. Together, they can quench a varied number of free radical types while effectively recycling one another for maximum protection.* Unlike many competitors, Isotonix® Astaxanthin is cold water-soluble and in a powdered form. Its temperature-controlled extraction offers a higher concentration of astaxanthin by weight while also dispersing well water without clumping or sticking.

Key Ingredients & Benefits

Vitamin E (d-alpha tocopherol)*
Provides powerful antioxidant defense
Supports gastrointestinal immune functions

Potassium (Bicarbonate)*
Helps maintain a healthy electrolyte balance in the body
Supports healthy fluid balance and exchange

Acerola Fruit Extract (25% Vitamin C)*
Supports absorption of vitamin C into the bloodstream and liver
Promotes skin health and free radical protection

Astaxanthin (AstaReal®†)*
Supports healthy visual focus and accommodation
Supports cardiovascular health, muscle endurance and performance
Helps maintain normal blood pressure
Promotes healthy blood flow and helps maintain normal cholesterol levels
On-the-Go Companion for Combatting Oxidative Stress
Astaxanthin is known to be a powerful antioxidant with an affinity for tissues that have heightened metabolic demand, such as cardiac and skeletal muscles, requiring sufficient oxygen and energy for their proper performance.* Ideal for on-the-go activities or travel, Isotonix Astaxanthin is perfectly formulated for athletes and metabolic health support and is in isotonic form to enable quick nutrient delivery with efficient absorption.
Directions For Use

Pour 1 packet of powder into your favorite cup.

Add 2 fl oz of water and mix.

Sip and enjoy. If mixed with other Isotonix products, add 2 oz of water for each capful.
Isotonix Delivery System

:05 minutes
Isotonix Liquid Vitamins
- Formulated to survive digestion.
- Delivers concentrated nutrients to the site of absorption.
- Contains no fillers or binders.
- No artificial color or flavors.

:40 minutes
Standard Vitamin Tablet
- Contains lab-created coatings and lubricants.
- Often contains artificial colors, nutrients and flavors.
- Limited absorption of nutrient utilization.
Frequently Asked Questions
Where is the astaxanthin in Isotonix® Astaxanthin sourced?
This product uses only AstaReal®† Astaxanthin, which is manufactured from carefully cultivated microalgae (Haematococcus pluvialis) in state-of-the-art facilities. In contrast to generic varieties, AstaReal® Astaxanthin is unsurpassed for quality control and consistency in manufacture. AstaReal® Astaxanthin is frequently selected for clinical research and testing in nutritional applications. AstaReal® Astaxanthin has 14 patents over a span of several areas of health, making AstaReal® your only choice in quality astaxanthin.
What is the recommended serving of Isotonix Astaxanthin?
The recommended serving for adults over the age of 18 is one serving per day, which provides 6 mg of astaxanthin.
Does Isotonix Astaxanthin need to be taken on an empty stomach?
All Isotonix products are formulated for efficient delivery of nutrients or components when taken as directed. Because astaxanthin and vitamin E are fat soluble antioxidants, taking Isotonix Astaxanthin with a meal is permissible and will not impact the effectiveness of the ingredients.*
Which products are best combined with Isotonix® Astaxanthin?
Isotonix Astaxanthin has multiple benefits and can be combined with products such as Isotonix® Resveratrol for those looking for increased cardiovascular support, Isotonix® Vision Formula for those looking for healthy vision, Isotonix® Coenzyme Q10 for maintaining healthy cholesterol levels and Isotonix OPC-3® for maximum antioxidant protection.*
What is the significance of Isotonix Astaxanthin being cold-water-soluble?
Unlike many competitors, Isotonix Astaxanthin is cold water-soluble and in a powdered form. Not only is cold-water-soluble astaxanthin a temperature-controlled extraction, the cold-water soluble powder offers a higher concentration of astaxanthin by weight while also dispersing well water without clumping or sticking, making it ideal for on-the-go activities or travel. In addition, the cold-water-soluble AstaReal® Astaxanthin is a free-flowing powder, allowing for enhanced delivery.
What differentiates Isotonix Astaxanthin from Prime Astaxanthin?
Isotonix Astaxanthin is a vegan and gluten-free formula that features three powerful antioxidants — two that are fat-soluble and one that is water-soluble — that work in synergy to protect both sides of the cell membrane. Isotonix Astaxanthin provides you with efficient absorption of the nutrients within the product. Isotonix Astaxanthin can be taken with your daily Isotonix while you can take Prime Astaxanthin later if you want the benefits of 12 mg of pure AstaReal® Astaxanthin.*
Research Scope
Reference List
- Aoi, W., et al. Astaxanthin improves muscle lipid metabolism in exercise via inhibitory effect of oxidative CPT I modification. Biochem. Biophys. Res. Com. 366:892–897, 2008.
- Cardoso, P. C., Tomazini, A. P. B., Stringheta, P. C., Ribeiro, S. M., & Pinheiro-Sant’Ana, H. M. (2011). Vitamin C and carotenoids in organic and conventional fruits grown in Brazil. Food chemistry, 126(2), 411-416.
- Choi et al. Effects of astaxanthin on oxidative stress in overweight and obese adults. Phytother Research (in-press), 2011.
- Choi, H. D., Kim, J. H., Chang, M. J., Kyu‐Youn, Y. and Shin, W. G. (2011), Effects of Astaxanthin on Oxidative Stress in Overweight and Obese Adults. Phytother. Res., 25: 1813-1818. doi:10.1002/ptr.3494
- Chyun, J. H., & Kim, Y. K. (2004). The Effects of Astaxanthin Supplements on Lipid Peroxidation and Antioxidant Status in Postmenopausal Women. Nutritional Sciences, 7(1), 41–46.
- De Rosso, V. V., & Mercadante, A. Z. (2005). Carotenoid composition of two Brazilian genotypes of acerola (Malpighia punicifolia L.) from two harvests. Food Research International, 38(8-9), 1073-1077.
- Earnest, C. P., Lupo, M., White, K. M., & Church, T. S. (2011). Effect of astaxanthin on cycling time trial performance. International Journal of Sports Medicine, 32(11), 882-888. https://doi.org/10.1055/s-0031-1280779
- Ikeuchi, M., et al. Effects of astaxanthin supplementation on exercise-induced fatigue in mice. Bio. Pharm. Bull. 29(10):2106-2110, 2006.
- Iwabayashi, et al. Efficacy and safety of eight-week treatment with astaxanthin in individuals screened for increased oxidative stress burden. Journal of Anti-Aging Medicine. 6(4):15-21, 2009.
- Kajita M, Tsukahara H, Kato M. The effects of a dietary supplement containing astaxanthin on the accommodation function of the eye in middle-aged and older people. Med Consult New Remedies 2009;46:89-93. http://www.flex-news-food.com/files/bioreal031209.pdf.
- Karppi, et al. Effects of astaxanthin supplementation on lipid peroxidation. Int J Vitam Nutr. Jan; 77 (1): 3-11, 2007.
- Malmsten, C. and Lignell, A. Dietary supplementation with astaxanthin rich algal meal improves muscle endurance – a double blind study on male students. Carotenoid Science. 13:20-22, 2008.
- Matsuyama, et al. A safety study on the long-term consumption of astaxanthin in healthy human volunteer. Japanese Journal of Complementary and Alternative Medicine. (7):43-50, 2010.
- Miyawaki, et al. Effects of astaxanthin on human blood rheology. Journal of Clinical Therapeutics and Medicines. 21(4):421-429, 2005.
- Nagaki, Y., et al. Effects of astaxanthin on retinal capillary blood flow in normal volunteers. Journal of Clinical Therapeutics and Medicines. 21(5): 537-542, 2005.
- Naguib, Y. The antioxidant activities of astaxanthin and related carotenoids. Journal of Agricultural and Food Chemistry. 48(4): 1150-1154, 2000.
- Nakagawa, et al. Antioxidant effect of astaxanthin on phospholipid peroxidation in human erythrocytes. British Journal of Nutrition. (31):1-9, 2011.
- Nakamura, A., et al. Changes in visual function following peroral astaxanthin. Japanese Journal of Clinical Ophthalmology. 58(6): 1051-1054, 2004.
- Nanako, T. and Masayoshi, K. Effects of astaxanthin on accommodation recovery. Journal of Clinical Therapeutics and Medicines. 21(4): 431-436, 2005.
- Phetcharat L, Wongsuphasawat K, Winther K. The effectiveness of a standardized rose hip powder, containing seeds and shells of Rosa canina, on cell longevity, skin wrinkles, moisture, and elasticity. Clin Interv Aging. 2015;10:1849–1856. Published 2015 Nov 19. doi:10.2147/CIA.S90092
- Satoh, et al. Preliminary clinical evaluation of toxicity and efficacy of a new astaxanthin-rich Hameotoccus pluvialis. J. Clin. Biochem. Nutr. 44: 280–284, 2009.
- Sawaki, K., et al. Sports performance benefits from taking natural astaxanthin characterized by visual activity and muscle fatigue improvements in humans. J. Clin. Ther. Med. 18(9):73-88, 2002.
- Takahashi N, Kajita M. Effects of astaxanthin on accommodative recovery. J. Clin. Therap. Med. 21(4):431-436, 2005.
- Yamashita, et al. Cosmetic benefit of the supplement health food combined astaxanthin and tocotrienol on human skin. Food Style. 21. 6(6):112-117, 2002.
- Yamashita, et al. The Effects of a Dietary Supplement Containing Astaxanthin on Skin Condition. Carotenoid Science. 10:91-95, 2006.
*These statements have not been evaluated by the Food and Drug Administration. This product(s) is not intended to diagnose, treat, cure or prevent any disease.
†AstaReal® is a registered trademark of Fuji Chemical Industry Co., Ltd.
Reviews
Customer Rating
5.0 out of 5 star rating.
(21 reviews)
would recommend this product.
- Newest
- Highest Rating
- Lowest Rating
- Oldest
- Most Helpful
Customer Images
平时一直用手机和电脑,一天基本有10小时以上看屏幕的时间,眼镜会酸痛和模糊,自从每天早一包晚一包喝此款等渗虾红素,非常好的帮助缓解以上症状,加强视力抗老化,也能改善蓝光对视网膜造成的负面伤害!
Response from Customer Service on 11/06/2024
Thank you for offering such a detailed account of your experience with our Isotonic Astaxanthin supplement. We are thrilled to hear that it has had a meaningful impact on you.
In today's technology-driven world, many individuals like yourself face challenges stemming from extended screen time, including blurry eyes. Our Isotonic Astaxanthin is specially formulated to support eye health.
It's particularly gratifying to learn that you've noticed a difference in visual clarity and felt the anti-aging benefits on your eyesight. It reinforces our mission to provide solutions that contribute to better overall well-being and ocular health.
Thank you once more for sharing your positive experience.
It makes a huge difference.
by Anonymous
on 10/16/2024
I can feel the difference especially if I missed several days. I can’t be without this great product.
Response from Customer Service on 10/17/2024
Thank you for your wonderful review of Isotonix® Astaxanthin! We're thrilled to hear that it's making such a positive change for you. Your enthusiasm and loyalty mean a lot to us. Thank you for choosing our product and for your continued support!
My Isotonix astaxanthin
by Anonymous
on 08/30/2024
I love the taste and isotonix delivery form - faster absorption
Response from Customer Service on 08/30/2024
Thank you for sharing your feedback! We're delighted to hear that you love the taste of Isotonix Astaxanthin and appreciate the faster absorption that the Isotonix delivery form provides. Your positive experience is greatly appreciated!
Amazing Product
by ElizabethZ
on 08/26/2024
I use astaxanthin daily. I forgot to pack it when I went away for a week once and noticed the difference in my stamina toward the end of the week. i had noticed this before when I had forgotten to reorder it. This is an amazing supplement for cardiovascular health.
Response from Customer Service on 08/28/2024
Thank you for your wonderful review! We're thrilled to hear that Isotonix® Astaxanthin has made such a noticeable difference in your daily stamina and overall well-being. It's great to know that you value the supplement so highly and have experienced its benefits firsthand. Your feedback is incredibly valuable to us, and we're delighted to be a part of your health routine. Thank you for being a valued customer and for sharing your positive experience with us!
excellent product
by CorinneC
Shop Consultant
on 07/05/2022
My husband could not swallow the caplet, so we changed to this product.... All the benefit. Mixes in with his other Isotonix VERY HAPPY
Response from Customer Service on 07/05/2022
Dear Valued Customer,
Thank you for taking the time to share your thoughts on the nutraMetrix Isotonix® Astaxanthin! We are so happy to hear you are pleased with the product!
Thank you again!
The Product Information Team
Share this page!
Copy this link and paste to your favorite social, blog or website.
Link copied! Please paste and share on your favorite platforms.
There was an error copying to your clipboard. Please try again later.