Developed and used by doctors in clinical practice, ColdDx can provide a natural way to achieve powerful relief and comfort when you feel lousy and rundown, allowing your immune system to more easily do its job of re-establishing normal energy and balance.

As a teacher who encounters a veritable universe of [immune challenges] every day. I want to say how much I appreciate the ImmuneDx and ColdDx products. I have been taking both for more than ten years! Carol O – WA


*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.


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ColdDx  has been evaluated in a human gene expression study to examine its effect on the immune system. Human blood samples treated with ColdDx in the presence and absence of an immune aggravator were assessed for the expression of 24 genes involved in inflammatory immune response. ColdDx significantly decreased the effects of the immune aggravation, indicating that ColdDx helps maintain healthy immune and inflammatory responses.


Plantiva controls all aspects of its product supply chain, which starts with knowing our growers, lab testing every step of the way, starting with the unprocessed plant materials and continuing through the multiple stages of processing to the finished extract materials.

Plantiva does not buy its ingredients from brokers and herb markets. We have spent over 15 years comparatively evaluating growing areas, standardizing extraction processing, and developing analytical methods for the plants used in making Plantiva products.

Our quality assurance team is managed by leading industry experts and other dedicated and experienced technicians around the world.

For more on Plantiva Quality, click here.


Andrographis  A very cold herb used to help detoxify the respiratory and digestive systems.

Isatis  A cold and detoxifying herb. Improves respiratory and immune health.

Belamcanda  A cold herb specific to maintaining healthy tissue in the throat.

Forsythia  A cold herb to help detoxify and maintain respiratory immune balance.

Bupleurum  Protects the liver. Helps maintain normal body temperature.

Coptis  Strong detoxifier to relieve liver, gall bladder, and immune stresses.

Pueraria  Relaxes muscles and stiffness in the upper back, neck, and discomfort in the head.

Platycodon  Opens the lungs, promotes clear breathing, helps maintain optimal respiratory function.

Olive leaf  Improves respiratory health when affected by immune challenges.

Other Ingredients  Vegetable capsule, organic rice powder, tapioca starch, silica, magnesium stearate.


Q: Is ColdDx scientifically tested?
 ColdDx has been evaluated for its effects on the expression of human genes related to immune function.   Significant modulation in the expression of genes was seen, including IL6, TNF-alpha, IL12, COX-2, and others.  We were very interested to note that important components of the immune health benefits imparted by ColdDx are initiated at the level of gene activation.   Other data on ColdDx demonstrates its ability to maintain healthy inflammatory immune response.

Q: How often can I take ColdDx?
To maintain your health during periodic immune challenges, adults can take 2-4 capsules up to 3 times per day for up to two weeks at a time. In such cases ColdDx can be taken as the perceived need occurs. ColdDx can also be taken in smaller doses for longer periods (i.e. 1-2 caps/day; 3-5 days a week) to help you maintain balanced inflammatory health.

Q: Who might benefit from ColdDx?
Periodic immune challenges can really put a damper on your daily activities whether at work, school or play. Anyone looking for relief from occasional immune challenges could benefit from ColdDx. ColdDx contains herbs that modulate immune function to help maintain your feeling of health.

Q: How long will it take before I feel ColdDx working?
When experiencing the effects of a periodic immune challenge, the dosage may be increased to up to four capsules, four times per day. In our experience with the product, after taking a 3-4 capsule dose the benefits can be noticed within 30 minutes to an hour.

Q: What are the key benefits of ColdDx?
The herbal ingredients in ColdDx are highly effective for maintaining the feeling of health and well-being during those periodic immune challenges that can be brought on by a variety of stresses such as seasonal changes, fatigue, over-exercise, or exposure to environmental stress.

Q: Is ColdDx safe and natural?
ColdDx is a natural formula made from a proprietary blend of beneficial plant extracts. After years of use in clinical practice there have been no adverse events. In addition, every batch of raw material and product undergoes a battery of physical, chemical, and microbiological tests to ensure quality, identity, and purity.

Q: Is ColdDx gluten free?
None of the ingredients in Plantiva products are known to contain gluten. However, Plantiva does not test for gluten and therefore cannot guarantee the products to be completely gluten free.

Q: Does ColdDx work?
Clinical experience with ColdDx demonstrates that it is a highly effective formula for maintaining health and wellness during periodic immune challenges. Laboratory research undertaken on ColdDx indicates that it is a powerful modulator of the immune system. This may be especially relevant when experiencing the effects of immune challenges brought on by seasonal changes, fatigue, over-exercise, and exposure to challenging environmental conditions. ColdDx has been used by a broad spectrum of the population for more than ten years.

Q: Can I take other supplements or prescriptions when using ColdDx?
We always advise you to ask your doctor first. However, in over ten years of ColdDx use we have not seen adverse interactions when using ColdDx in combination with other products.


Recommended Use

ColdDx dosages of 3-4 capsules 2-4 times per day is intended for short-term use, i.e. 10 days to 2 weeks at a time.

For ongoing support for immune health and/or detoxification, take 1-2 capsules of ColdDx 3-5 days per week, or as needed.  These smaller serving sizes of ColdDx can be taken together with similar sized servings of ImmuneDx when more comprehensive immune benefits are desired.

ColdDx is a Companion Product to ImmuneDx.

ImmuneDx can be used regularly to maintain strong and balanced immune function.  ImmuneDx can also be used at the very first sign of an immune aggravation when fatigue, muscle aches and stiffness, or a scratchy throat start to occur as early warning signs of an impending immune challenge.  If the challenge takes hold, ColdDx is for immune detoxification and can be used to relieve discomfort, promote healthy immune function, and help you get back on your feet quickly. Immune detoxification with ColdDx is intended for short-term use, i.e. 10 days to 2 weeks at a time.

Serving size: 2 capsules
Servings per container: 30
Calories: 5
Total carbohydrate: 1 g

Caution: Discuss the use of ColdDx with your health care practitioner if you are taking prescription medicine. Do not use if pregnant or breastfeeding. Keep out of reach of children.

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