Isotonix® Astaxanthin

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Portable Powerful Antioxidant Protection AstaReal®† Astaxanthin, One of the Purest Available Convenient, Individual Packets

by: Isotonix®

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Single Box (30 Packets)

SKU: 14505

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  • Up Your Antioxidant Game. Anywhere.

    We encounter free radicals all day, every day. In the air we breathe, in the food we eat. They can cause oxidative stress, the primary contributor to the aging process.

    Here's your portable protection at the cellular level. Isotonix® Astaxanthin features AstaReal®† astaxanthin, renowned for being among the purest and most powerful antioxidants available.

    Easy to take with you, easy to prepare. Discover how Isotonix® Astaxanthin packets maintain your best defense!

  • Active Ingredients: Vitamin E (as D-alpha-tocopheryl Succinate), Potassium (as potassium bicarbonate), AstaReal® - Astaxanthin†, Acerola (25% vitamin C) (fruit)

    Other Ingredients: Fructose, glucose, maltodextrin, malic acid, citric acid, orange flavor, silicon dioxide, stearic acid

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.

image of astaxanthin

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 Classifications

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Isotonic

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Good Manufacturing Practices

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Vegan

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Dairy Free

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Gluten-Free

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No Detectable GMO

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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 & Their Benefits

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Vitamin E (d-alpha tocopherol)*

Provides powerful antioxidant defense

Supports gastrointestinal immune functions

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Potassium (Bicarbonate)*

Helps maintain a healthy electrolyte balance in the body

Supports healthy fluid balance and exchange

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Acerola Fruit Extract (25% Vitamin C)*

Supports absorption of vitamin C into the bloodstream and liver

Promotes skin health and free radical protection

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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

image of someone's hand pouring a serving of Isotonix Astaxanthin into a glass

Pour 1 packet of powder into your favorite cup.

image of person's hand mixing a serving of Isotonix Astaxanthin up with water

Add 2 fl oz of water and mix.

image of person holding a glass with a serving of Isotonix Astaxanthin in it

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

: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

  • 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.

  • The recommended serving for adults over the age of 18 is one serving per day, which provides 6 mg of astaxanthin.

  • 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.*

  • 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.*

  • 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.

  • Both products provide 6 mg of AstaReal® astaxanthin, one of the most clinically studied natural forms. The key difference is how they deliver the nutrient: Isotonix® Astaxanthin uses a powdered isotonic delivery system that includes additional antioxidants (vitamin C, vitamin E and acerola) to support efficient nutrient absorption and broad-spectrum antioxidant protection — ideal for those already taking Isotonix supplements or who prefer a drinkable format. Prime™ Astaxanthin is a softgel capsule with the same clinically supported 6 mg of AstaReal®, delivered in an olive oil base for traditional fat-soluble absorption — ideal for those who prefer a capsule format and want to focus on cardiovascular, vision, and skin health. In summary, both products deliver the same clinically validated AstaReal® astaxanthin at 6 mg. The difference is in the delivery system and complementary nutrients— Isotonix® Astaxanthin focuses on absorption efficiency and antioxidant synergy, while Prime™ Astaxanthin offers convenient softgel delivery for cardio, vision, and skin health.

Research Scope

view full Reference List

*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 Reviews
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Displaying reviews 1 - 5 of 21

by QIANGW

  • Shop Consultant
护眼，舒缓视疲劳
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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:

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.

by Anonymous

It makes a huge difference.

I can feel the difference especially if I missed several days. I can’t be without this great product.

Response from Customer Service:

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!

by Anonymous

My Isotonix astaxanthin

I love the taste and isotonix delivery form - faster absorption

Response from Customer Service:

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!

by ElizabethZ

Amazing Product

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:

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!

by CorinneC

  • Shop Consultant
excellent product

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:

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

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