The Best Antiviral Supplements to Boost Your Immune System

The Best Antiviral Supplements to Boost Your Immune System

What are the best antiviral supplements?

  1. Vitamin C
  2. Green Tea Extract
  3. Zinc
  4. Quercetin
  5. Elderberry Sambucus
  6. Astragalus Extract
  7. Echinacea
  8. Turmeric (Curcumin)
  9. Garlic
Avoiding sickness is on everyone’s mind nowadays. To protect yourself from a viral infection, you need proper nutrition and rest. However, those with health concerns may be looking for additional solutions to achieve a robust immune system. Antiviral supplements are the best solution you can find — they’re highly beneficial for our natural defenses and wellbeing. Interested in boosting your immune system? Here are the best antiviral supplements you should be taking to help your body fight off any illness — COVID-19 or otherwise.

Vitamin C

Vitamin C is known for being a potent antiviral nutrient. Several studies show that it quickens immune responses against certain flu viruses. Other studies show that Vitamin C can produce a more robust immune response against pathogens. Vitamin C achieves this by boosting the activity of natural killer (NK) cells and of T lymphocytes — cells that kill pathogens and improve our immune response in case of future infection. Up your Vitamin C levels with our Vitamin C-500 mg with Bioflavonoids & Rose Hips antiviral supplements; these will help boost your body’s ability to fight off illness!

Green Tea Extract

Green tea Another great antiviral supplement from Puritan’s Pride is our Green Tea Extract. Green tea — aside from being exceptionally soothing — is known for its multiple health benefits, particularly as a therapeutic agent. The main compound behind its health-promoting properties is an antioxidant called Epigallocatechin-3-O-gallate (EGCG). Studies found that EGCG has an antiviral effect against a broad range of viruses. Adding this antioxidant to your diet can prevent the invasion of viruses into your body — preventing illness.


Zinc is a mineral used in many bodily functions — including immune response. Our Zinc Gluconate antiviral supplements can lessen the seriousness and length of common illnesses; such as colds and coughs. It does this by reducing our cytokine levels — a substance that inflames your body and worsens your symptoms. Zinc offers other benefits for our immune health. It is used in signaling immune response — and zinc deficiency can make your immune system slow and weak. Researchers also believe that zinc prevents the viral activity behind sickness; such as binding and reproduction.


Quercetin Quercetin is a bioflavonoid — an antioxidant — with immune-enhancing abilities. Using Puritan Pride’s Quercetin Plus Vitamin C antiviral supplements can greatly boost your immune system’s effectiveness. Quercetin can neutralize oxidative damage, which helps protect our immune cells. Research also found that Quercetin can stop the entry of viruses by blocking the cell receptors that they use to enter our bodies. Further, Quercetin acts as a mucolytic agent which means they relieve congestion in the lungs — a common symptom with flu viruses.

Elderberry Sambucus

Elderberry Sambucus supplements from Puritan’s Pride contain bioflavonoids with powerful antiviral and antioxidant properties. Taking Elderberry extract is proven to enhance immune function. Studies show this is achieved through Elderberry’s management of cytokine activity. With Elderberry supplements, your immune response becomes quicker and stronger against infection. Additionally, studies have found that Elderberry offers benefits for your lungs— it can help you remove excess phlegm, reduce congestion, and prevent bacteria build-up.

Astragalus Extract

Astragalus Extract Certain antiviral supplements — like our Astragalus Extract — help your body adapt against foreign invaders. Astragalus contains a nutrient called Astragalus polysaccharide (APS). APS has significant health benefits, including immune-boosting and antiviral qualities. Clinical studies found that Astragalus supplements can protect against a variety of illnesses; herpes viruses, hepatitis C, and avian influenza virus are all affected by APS. Plus, Astragalus can protect astrocyte cells — the most abundant cell in your central nervous system — from infection.


Echinacea Complex supplements are a popular herbal medicine due to their impressive lineup of uses — including as an antiviral supplement. Echinacea is packed with immune-boosting nutrients — flavonoids, cichoric acid, and rosmarinic acid — all of which strengthen your defenses against oxidative stress and viruses. Past studies prove that Echinacea is very effective against symptoms of viral infections like influenza. Echinacea can prevent infection from the common cold by up to 50%; it can also shorten the duration of sickness by up to two days.

Turmeric (Curcumin)

Turmeric (Curcumin) Curcumin is a chemical derived from Turmeric spice. It is used for its analgesic, anti-inflammatory, and antiseptic properties. Studies show that curcumin can manage your immune response; it supports the activity of T-cells, B-cells, macrophages, and other important parts of your immune system. This is especially helpful for those with autoimmune diseases. However, curcumin is poorly absorbed when consumed in food. To experience the full effects, try a supplement — such as Puritan Pride’s Turmeric Curcumin capsules. These are easily absorbed by your body, and provide all the immunity benefits of curcumin.


Garlic Extract supplements — like our Garlic Odorless soft gels — are well-known remedies for a wide range of viral infections. Studies on influenza, HIV, HSV-1, viral pneumonia, and rhinovirus noted that their viral activity was lessened when exposed to garlic extract. Other studies showed that patients who took garlic antiviral supplements had higher counts of protective immune cells — which are essential in protecting your body against infection.

Key Takeaway

While no pill can fully prevent illness, certain antiviral supplements are key to boosting your immune system. These nine supplements are easy to take, and they are very effective for enhancing your natural defenses. Taking these may also support your ability to recover faster!