Formulated as the best antioxidant
Validated by research
20x
stronger than vitamin C
50x
stronger than vitamin E
95%
intestinal nutrient delivery for max absorption
Oligomeric proanthocyanadins (OPCs) are bioflavonoids (complex organic compounds) found in fruits, vegetables and certain tree barks that provide exceptional nutritional benefits to the human body.

Pycnogenol®: The Super Antioxidant in Isotonix OPC-3
Isotonix OPC-3 contains the only isotonic form of Pycnogenol® in the world. Pycnogenol® is a natural plant extract from the bark of the French maritime pine tree and the most clinically researched and potent bioflavonoid.

Product Classification

Gluten-Free

Vegan

Isotonic

Good Manufacturing Practices
How to Take

Step 1
Pour 1 level, white bottle capful of powder into the overcap.

Step 2
Add water to the line on the overcap (2 fl oz/60 mL) and stir.

Step 3
Enjoy once a day. For maximum absorption, take on an empty stomach.
Key Ingredients & Benefits

Pycnogenol®
a powerful antioxidant
acts as a natural anti-inflammatory
helps strengthen blood vessel walls and capillaries
supports optimal circulation

Grape (Vitis Vinifera) Extract - Seed and Skin
powerful antioxidant
extremely rich in polyphenols
contributes to maintaining healthy circulation by strengthening capillaries, arteries and veins

Bilberry (Vaccinium myrtillus) Extract
contains anthocyanins, powerful antioxidants
may help support vision and venous circulation
helps maintain healthy circulation by strengthening capillaries, arteries and veins

Citrus Bioflavonoids Extract
promote cardiovascular health
help maintain healthy circulation by strengthening capillaries, arteries and veins
demonstrate anti-inflammatory activity
Your Super Antioxidant
Isotonix OPC-3 reduces free radicals formed in the body.
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 colour or flavours.

:40 Minutes
Standard Vitamin Tablet
- Contains lab-created coatings and lubricants.
- Often contains artificial colours, nutrients and flavours.
- Limited absorption of nutrient utilisation.
Frequently Asked Questions
What sets Isotonix OPC-3® apart from other antioxidants?
Isotonix OPC-3 is a dietary supplement with active ingredients that represent the most powerful bioflavonoids currently known to research scientists. These bioflavonoids are scientifically termed "oligomeric proanthocyanidins" and commonly abbreviated OPCs. The purest and best-researched OPCs are prepared from grape seed, bilberries, Pycnogenol from pine bark and citrus fruit. This combination of potent OPCs is unique to OPC-3, as is the Isotonix delivery system, which enables rapid and highly efficient absorption of the OPCs.
How long does it take for me to benefit from Isotonix OPC-3?
Many effects of OPC-3 start to work after a single serving. Studies with human volunteers have found that the health benefits of OPCs may take a while to occur. This may be the case for concerns resulting from everyday wear and tear, where time simply has taken its toll. Taking Isotonix OPC-3 daily enables the body to sustain a consistent antioxidant defence.
How does Isotonix OPC-3 protect against free radical damage?
Everyone is subject to free radical damage and oxidative stress. Free radicals develop as byproducts of physiological processes that occur within the body. This damage does not cause noticeable harm at first, yet it may add up over the years. This process is largely responsible for the ageing process. Free radicals have been linked directly to premature ageing, poor circulation, poor heart health and poor immune health. OPCs are the most powerful natural free radical neutralisers, and you get the best of all OPCs by taking Isotonix OPC-3.
I’m healthy and athletic, so why should I take Isotonix OPC-3?
Everyone is vulnerable to the ageing process caused by continuous free radical damage. Athletes tend to be exposed to elevated levels of oxidative stress. Free radicals develop as byproducts during metabolism when calories are processed with oxygen. Athletes inhale 10 to 20 times more oxygen during physical activity over rest periods. The increase in activity creates additional free radicals. In fact, these free radicals are known to limit performance, as free radicals appear to take their toll on muscle tissue. Studies on recreational athletes have shown a 20% endurance increase with OPCs, as compared to a control group receiving placebo. Another study has shown that athletes using OPCs suffered significantly less muscle cramping during and after performing. Isotonix OPC-3 helps to maintain healthy blood flow, thus supporting oxygen supply to muscles.
How can OPC-3 help my eyes?
Loss of eyesight is the disability people fear more than all others. Isotonix OPC-3 contains specific OPCs successfully tested for eye health. Pycnogenol has been shown to support healthy capillaries in the eye. Bilberry extract has been shown to inhibit the progression of cataracts and important for promoting eye health. Isotonix OPC-3 helps maintain visual health and supports visual acuity.
What exactly is Pycnogenol®?
Pycnogenol is the trademark of Horphag Research (UK) Ltd. For a standardised extract of bark of the French maritime pine tree. Pycnogenol is particularly renowned for its extensive clinical research. The flavonoids in Pycnogenol not only act as powerful antioxidants, they also appear to promote the normal generation of nitric oxide (NO). Nitric oxide promotes the normal relaxation of arteries, supports normal diameter of blood vessels and helps maintain healthy blood pressure and circulation. NO promotes normal platelet activity allowing the blood to maintain a normal, fluid viscosity. Pycnogenol has been awarded various patents for its ability to support healthy platelet activity. OPC Recap: OPC-3 is a necessity for those interested in seriously protecting their health from the cellular level up. Everyone is subject to free radical damage. OPCs have been researched and widely used in Europe with great success. The benefits of OPC-3 extend into every function in the body and in a country where the diet and lifestyle are mediocre at best, deciding to add an outstanding product like OPC-3 to one’s daily regimen may just add years to one’s life and life to one’s years.
Research Scope on OPC-3®
558+
Studies on Pycnogenol® and Human Health
3
Independent studies for Isotonix OPC-3®
4x
The bioavailability of Isotonix OPC-3® compared to a tablet form
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- Kohama, T., et al. The treatment of gynecological disorders with Pycnogenol®. European Bulletin of Drug Research 7: 30-32, 1999.
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- Roseff, S., et al. Improvement of sperm quality by Pycnogenol®. European Bulletin of Drug Research 7: 33-6, 1999.
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- Spadea, L., et al. Treatment of vascular retinopathies with Pycnogenol®. Phytotherapy Research 15: 219-23, 2001.
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Reviews
Customer Rating
4.8 out of 5 star rating.
(31 reviews)
would recommend this product.
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Customer Images
taste good and great result as well!
Response from Customer Service on 6/11/2024
Thank you for your great feedback on Isotonix® OPC-3! We're so happy to hear that you enjoy the taste and are seeing great results. It’s always fantastic when a product not only delivers on its benefits but is also a pleasure to take. We appreciate you sharing your experience and hope you continue to enjoy the positive effects of OPC-3!
Market Australia, team!
Feels good
by Anonymous
on 18/4/2024
I have been taking this for a few weeks now. I am feeling more energetic than before. Will continue to have it to see more significant difference.
Response from Customer Service on 21/4/2024
Thank you for sharing your experience with Isotonix® OPC-3! We're thrilled to hear that you're feeling more energetic after incorporating it into your routine. It's always rewarding to hear when our products make a positive difference in someone's life. Consistency is key, so continuing to take OPC-3 may lead to even more significant benefits over time. We're here to support you on your wellness journey, and we're excited for you to continue experiencing the positive effects. If you have any questions or need further assistance, please don't hesitate to reach out. Here's to your continued vitality and well-being!
Market Australia, Team!
A must have
by LisaT
on 28/7/2023
OPC-3 is a must have in a person's health regimen. I've been taking this for 2+ years and have found that besides increased energy, it has also helped me with joint/body stiffness. No more stiffness when I get out of bed in the morning.
Response from Customer Service on 7/8/2023
Wow! Thank you so much for the feedback! Isotonix OPC-3 is our #1 bestseller and has so many amazing benefits which includes *Helps promote healthy joint function. We are so pleased to hear you are enjoying these benefits and appreciate your recommendation.
Thank you, Market Australia
Ingredient
by Anonymous
on 11/7/2023
Not very happy with the amount of ingredient in the formulation since product started to be manufactured in Australia. Concentration of each ingredients has gone down so much!
Response from Customer Service on 12/7/2023
Dear Valued Customer,
Thank you for taking the time to express your concerns. In December 2022, Isotonix manufacturing was transferred to a TGA approved facility in Australia. This change supports Australia workers, our economy, and improves transport logistics. During the transition, product labeling was brought in line with updated regulatory requirements for complementary medicines in Australia (known as TG092). This update helps standardize how active ingredients are declared on labels. Even though the labels have changed, Isotonix OPC-3 remains the same. The same amount of active ingredients per serving, at the same potency and purity, are being delivered. Isotonix OPC-3 is made to the highest quality standards with no changes the active ingredients. Our Vice President of Quality and Regulatory is reaching out to you by email with additional details.
Best antioxidant
by HUEIE
Shop Consultant
on 14/2/2023
This product does what it says it will do in its list of benefits. I believe in this product - the best antioxidant. It has really helped and I cannot recommend it enough!
Response from Customer Service on 15/2/2023
Wow! Thank you so much for the feedback! Isotonix OPC-3 is our #1 bestseller and has so many amazing benefits! We are so pleased to hear you are enjoying these benefits and appreciate your recommendation.
Thank you, Market Australia
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