General well-beingImmune support

Boost Your Immune Health with Vitamin C and Quercetin This Winter 

Winter is the time of year when your immune system needs a little extra support.

The colder months can bring about more exposure to viruses, less sunlight, and more stress on your body – making it easier to get sick. But with the right nutritional support, you can give your immune system a much-needed boost. Two powerful nutrients that work well together are vitamin C and quercetin. Here’s why this immune-boosting duo is a winter essential, and how you can get the most out of it. 

What Is Vitamin C? 

Vitamin C is a water-soluble vitamin found in fruits like oranges, strawberries, and kiwis. It’s also a potent antioxidant and a key player in immune health [1]. 

How Vitamin C Supports Immunity: 

  • Enhances White Blood Cells: It increases the activity of phagocytes, which are immune cells that “eat up” harmful bacteria and viruses. 
  • Antioxidant Protection: Vitamin C helps neutralise free radicals, reducing oxidative stress that can weaken the immune system. 
  • Boosts Collagen Production: Collagen keeps your skin strong and resilient. Since skin is your first line of defense against pathogens, healthy skin supports immune protection. 
  • Improves Iron Absorption: Iron is essential for immune function, and vitamin C helps your body absorb more of it [1]. 

Research has shown that people with infections tend to have lower levels of vitamin C, suggesting that the body uses it up quickly when fighting off viruses. In animal studies, supplementing with vitamin C has been shown to reduce mortality from infections like influenza and rabies. Even in human studies, vitamin C has been linked to shorter hospital stays and reduced symptoms in viral infections like herpes zoster and herpes simplex [2]. 

Try This: Biomax® Vitamin C Liposomal 

This is not your average vitamin C supplement. Biomax® Vitamin C Liposomal uses advanced absorption technology for better utilisation and higher potency, so you get more immune support with every dose. It’s also gentle on the stomach, making it perfect for daily use. 

What Is Quercetin? 

Quercetin is a polyphenol – a plant-based compound – found in foods like onions, apples, berries, and even green tea. It is known for its anti-inflammatory and antiviral properties, and for maintaining a healthy immune response to allergies, making it especially useful during cold and flu season [3]. 

How Quercetin Supports Immunity: 

  • Fights Inflammation: Quercetin helps calm overactive immune responses by blocking the production of inflammatory compounds like TNF-α and IL-1α. 
  • Antiviral Properties: It may stop viruses from entering your cells and multiplying. Studies show that quercetin can fight off viruses like RSV, influenza, herpes, and even dengue. 
  • Antioxidant Support: Like vitamin C, quercetin also protects your cells from oxidative damage. 
  • Regulates Histamine: Quercetin helps stabilise mast cells, which may reduce allergy symptoms like sneezing, runny nose, and itchy eyes [3]. 

In animal studies, quercetin has helped protect mice from fatal viral infections, and in human studies, it has shown promise in reducing the risk of upper respiratory infections, especially in athletes under physical stress [2]. 

Try This: Phytopure® Quercetin with Pomegranate 

This quercetin supplement offers 60x more bioavailable quercetin than standard versions – meaning your body can absorb it better and faster. It also includes pomegranate, a natural anti-inflammatory that works hand-in-hand with quercetin to support immune health. 

Why Take Vitamin C and Quercetin Together? 

Vitamin C and quercetin are powerful on their own, but when taken together, their benefits are even stronger

Synergistic Benefits: 

  • Stronger Antioxidant Protection: They fight off free radicals, reducing oxidative stress more effectively than either nutrient alone. 
  • Enhanced Immune Cell Function: They support the activity and communication of immune cells like T cells, neutrophils, and macrophages [2]. 

Together, they form a dynamic duo that supports faster recovery, fewer symptoms, and better protection against colds, flu, and other respiratory infections. 

Try This: Immunity & Skin Health Bundle 

This convenient bundle includes both Biomax® Liposomal Vitamin C and Phytopure® Quercetin with Pomegranate, so you get full-spectrum immune support in one package. It’s the perfect daily routine to help keep you and your family healthy this winter. 

Natural Food Sources Are Great – But Not Always Enough 

While it’s true that vitamin C and quercetin are found in many fruits and vegetables, getting enough from diet alone, especially during winter, can be difficult. Cooking and storage can reduce vitamin C levels in food, and bioavailability (how much your body can actually use) of quercetin from food is relatively low. 

This is where supplementation comes in. Products like Biomax® Vitamin C Liposomal and Phytopure® Quercetin are designed for optimal absorption, making sure your immune system gets what it needs to stay resilient. 

Get Ahead of Winter with Nutritional Support 

The cold and flu season doesn’t have to slow you down. By adding a smart combination of vitamin C and quercetin to your routine, you give your body the tools it needs to fight off infections, reduce inflammation, and stay strong all winter long. 

Whether you’re working long hours, running after your kids, or simply trying to avoid the seasonal sniffles, this combo can help you feel your best. 

This content is for informational purposes only and does not constitute medical advice. Always consult with your healthcare provider before starting any new supplement, especially if you are pregnant, nursing, have a medical condition, or are taking prescription or chronic medication. 

    1. Carr AC, Maggini S. Vitamin C and immune function. Nutrients [Internet]. 2017;9(11):1211. Available from: https://www.mdpi.com/2072-6643/9/11/1211

    1. Colunga Biancatelli RML, Berrill M, Catravas JD, Marik PE. Quercetin and Vitamin C: An Experimental, Synergistic Therapy for the Prevention and Treatment of SARS-CoV-2 Related Disease (COVID-19). Front Immunol. 2020;11:1451. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7318306/

    1. Li Y, Yao J, Han C, et al. Quercetin, Inflammation and Immunity. Nutrients. 2016;8(3):167. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4808895/

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