• Immune System Support
  • Immune System Support
  • Immune System Support
  • Immune System Support

Immune System Support

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Immune System Support is a daily nutritional formula combining essential vitamins, minerals, standardized botanical extracts and mushroom ingredients.

Formula highlights

  • Vitamins A, C, B6, B12, folate and pantothenic acid
  • L-OptiZinc® zinc
  • Echinacea and astragalus extracts
  • Maitake, shiitake and reishi mushroom extracts

Designed for

  • Everyday nutritional support
  • Normal immune-system function
  • Adults looking for a broad-spectrum vitamin, mineral and botanical formula

Use according to the product label and serving directions.

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.

Echinacea Immune Activation

Echinacea helps activate the immune system and stimulate specific immune cells that are critical to maintaining overall health. It also helps support respiratory health, particularly during seasonal challenges such as the winter months.

Medicinal Mushroom Support

Maitake, Shiitake and Reishi mushrooms contain polysaccharide compounds that help stimulate important immune cells and support overall immune function.

L-OptiZinc® Immune Support

L-OptiZinc® is a patented form of the essential trace mineral zinc, required for proper growth and function of many types of immune cells. It also supports the health of the thymus gland, where immune cells known as T-cells are produced.

Quercetin Antioxidant Support

Quercetin is a powerful antioxidant that helps support healthy histamine levels, which play a role in cold and allergy-related symptoms.

Goldenseal & Garlic Support

Goldenseal contains the immunostimulatory compound berberine, while garlic provides sulfur-containing compounds that offer additional immune support.

Traditional Herbal Support

Ligustrum has been traditionally used in Chinese medicine to support a healthy immune system.

Recommended Dosage

Take 1 capsule daily, preferably with water or your favorite beverage.

Best Time to Take

For optimal results, consume the supplement in the morning on an empty stomach or as advised by your healthcare professional.

Consistency is Key

Incorporate the supplement into your daily routine to help maximize its benefits.

Optional Pairing

Pair with a balanced diet and healthy lifestyle to enhance overall effectiveness.

Important Information

Always read the product label for specific instructions. Consult your healthcare provider if you are pregnant, nursing, or taking medications.

Demo Notice

This is a demo store. All information provided is for demonstration purposes only.

Reviews for Immune System Support

Immune Support combines essential vitamins (A, C, B-complex), L-OptiZinc®, European standardized herbs (Echinacea, Astragalus), and premium mushroom extracts (Maitake, Shiitake, Reishi) to address immune health from multiple angles—something most formulas don't offer.

Take daily for best results! This formula is designed for ongoing immune support to help maintain healthy immune function year-round, especially during cold/flu season or times of stress, rather than just acute illness.

Our premium Maitake (TD fraction), Shiitake, and Reishi mushroom extracts provide powerful immune-modulating compounds not found in other immune formulas. These mushrooms have been used for centuries in traditional medicine for immune support.

L-OptiZinc® is the most clinically studied form of zinc and the only patented methionine-bound zinc, providing superior absorption and bioavailability compared to regular zinc supplements for maximum immune support.

*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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Everything You Need to Know!

Frequently Asked Questions

FZKL offers nutritional supplements across daily nutrition, performance, recovery routines, sleep support, gut health, and general wellness. Each product page includes its ingredients, serving information, and directions for use.

FZKL focuses on clear labeling, ingredient transparency, and quality standards across its supplement range. Review each product’s ingredient list, serving information, directions, and warnings to determine whether it fits your individual needs.

Start by considering your nutritional goals and reviewing the ingredients and intended use shown on each product page. Products can also be combined into a routine based on individual needs and label directions.

FZKL offers products designed to complement daily nutrition, training, recovery routines, and general wellness. Follow the serving directions and information provided on each individual product label.

Currently, FZKL ships within the United States. Shipping rates and available delivery options are shown at checkout. You can find more details on our Shipping Policy page.

FZKL offers a 30-day return period. Eligibility and other conditions are explained in our Refund Policy. Please review the policy for complete details before requesting a return.