May 20, 2025 | By Richard Weisner

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Top 10 Immune System Support Supplements to Elevate Your Wellness Brand

When it comes to staying healthy year-round, giving your immune system a little extra love can go a long way. Whether you’re trying to fend off seasonal sniffles, recover faster, or just feel your best, the right combination of nutrients can make a big difference. While there’s no magic pill for perfect immunity, there are some standout ingredients backed by both tradition and science that help your body stay resilient.

In this article, we’re diving into some of the most popular immune-supporting ingredients you’ve probably seen on supplement labels: Zinc, Vitamin C, Vitamin D3, Elderberry, Echinacea, Quercetin, NAC, Beta Glucans, Propolis Extract, and Vitamin A. Each one brings something unique to the table—from antioxidant defense and inflammation support to promoting the function of immune cells. Let’s break down what each of these powerhouse nutrients does and why they’re worth considering in your daily wellness routine.

Immune Support Supplement Manufacturing

1. Zinc (Picolinate or Citrate)

Effective Dose: 10-20 mg

Zinc is an essential trace mineral that plays a vital role in supporting the immune system. It is involved in numerous cellular processes that influence both innate (first-line) and adaptive (specialized) immune responses. Without adequate zinc, the immune system becomes less efficient, increasing vulnerability to infections and prolonging recovery time.

Zinc is indispensable for immune health, influencing the activity, development, and communication of immune cells while providing antioxidant protection and supporting barrier defenses. Ensuring adequate zinc intake—whether through diet or supplementation—can help bolster the body’s defenses, particularly during times of stress or seasonal illness.

Key Ways Zinc Supports Immune Function:

  1. Enhances White Blood Cell Function
     Zinc is critical for the development and activation of T-lymphocytes (T-cells), which help coordinate the immune response and destroy infected cells. It also supports the function of other immune cells such as neutrophils and natural killer (NK) cells that combat pathogens in the early stages of infection.

  2. Maintains the Integrity of Mucosal Barriers
     Zinc helps maintain the structure of the skin and mucous membranes, which serve as the body’s first line of defense against harmful microbes. A strong physical barrier reduces the likelihood of pathogens entering the body.

  3. Regulates Inflammatory Response
     Zinc has antioxidant and anti-inflammatory properties. It helps modulate the immune response by reducing excessive inflammation, which is often more damaging than the infection itself. This balance is especially important in preventing cytokine storms and other immune system overreactions.

  4. Supports Antioxidant Defense
     Zinc contributes to antioxidant activity by supporting enzymes such as superoxide dismutase (SOD), which reduce oxidative stress caused by infection or chronic inflammation. Oxidative stress can damage immune cells and impair their function.

  5. Reduces Duration and Severity of Illness
     Supplementing with zinc, especially at the onset of illness, has been shown to reduce the duration and severity of the common cold and other viral infections by inhibiting viral replication and supporting rapid immune activation.

Clinical Evidence Highlights:

  • A 2012 meta-analysis published in the Cochrane Database of Systematic Reviews found that zinc lozenges taken within 24 hours of the onset of cold symptoms significantly reduced the duration of the illness.

  • Research published in The American Journal of Clinical Nutrition indicates that zinc deficiency impairs immune function and increases the risk of pneumonia and other infections, particularly in children and the elderly.

2. Vitamin C (Ascorbic Acid)

Effective Dose:  250-500mg

Vitamin C (ascorbic acid) is one of the most well-known and researched vitamins when it comes to supporting immune function. As a water-soluble antioxidant, it plays a critical role in both the innate and adaptive immune responses—our body’s first line of defense and targeted response to pathogens.

Vitamin C is a cornerstone nutrient in immune support, offering antioxidant defense, enhanced immune cell function, and protection of physical barriers against pathogens. While it may not prevent illness outright, adequate vitamin C levels are essential for a robust and balanced immune response.

1. Antioxidant Protection

Vitamin C helps neutralize free radicals and oxidative stress, which can impair immune cell function. During infections or periods of high inflammation, immune cells generate reactive oxygen species (ROS) as part of their defense strategy. Vitamin C protects tissues from damage by these ROS, preserving the integrity and function of immune cells.

2. Enhancing White Blood Cell Activity

Vitamin C accumulates in high concentrations in various types of white blood cells, including:

  • Neutrophils, which help engulf and destroy pathogens
  • Lymphocytes, which regulate adaptive immunity and produce antibodies

Vitamin C enhances the mobility, function, and lifespan of these cells, making them more effective at fighting off invaders.

3. Supporting Skin and Mucosal Barriers

As a cofactor in collagen synthesis, vitamin C helps maintain the integrity of epithelial barriers, including the skin and mucous membranes. These barriers are the body’s physical defenses against pathogens entering through the respiratory or gastrointestinal tracts.

4. Modulating Inflammation

Vitamin C helps regulate cytokine production—small signaling proteins involved in immune responses. By balancing pro-inflammatory and anti-inflammatory cytokines, vitamin C prevents excessive inflammation, which is a hallmark of many viral infections.

5. Enhancing Iron Absorption

Vitamin C improves non-heme iron absorption, which supports overall energy and immune cell development, as iron is crucial for cell proliferation and immune responses.

Clinical Support:

Numerous studies support the role of vitamin C in immune health:

  • A meta-analysis of 29 clinical trials showed that regular vitamin C supplementation (≥200 mg/day) can reduce the duration and severity of colds, especially in individuals under physical stress (Hemilä & Chalker, 2013).

  • Higher intakes of vitamin C have also been linked to a lower risk of respiratory infections and improved outcomes in pneumonia and sepsis cases (Carr & Maggini, 2017).

3. Vitamin D3 (Cholecalciferol)

Effective Dose: 1000–2000 IU (25–50 mcg)

Vitamin D3 (cholecalciferol) plays a critical role in supporting immune system health by modulating both innate and adaptive immune responses. Unlike most vitamins, Vitamin D3 functions more like a hormone, with receptors found in nearly every immune cell in the body.

Vitamin D3 is essential for a well-functioning immune system. It supports pathogen defense, helps regulate inflammatory responses, and may reduce susceptibility to autoimmune diseases and infections. Maintaining sufficient levels through sunlight exposure, diet, or supplementation is important—especially in populations at risk of deficiency.

Key Immune Benefits of Vitamin D3:

  1. Enhances Innate Immunity
     Vitamin D3 boosts the body’s first line of defense by stimulating the production of antimicrobial peptides such as cathelicidin and defensins. These peptides help the body combat bacterial, viral, and fungal pathogens, particularly in the respiratory tract and skin.

  2. Regulates Adaptive Immunity
     Vitamin D3 helps maintain immune balance by suppressing excessive inflammatory responses. It influences T-cell differentiation, promoting the development of regulatory T cells (Tregs) and suppressing pro-inflammatory Th1 and Th17 cells. This action is critical in preventing chronic inflammation and autoimmune responses.

  3. Supports Respiratory Health
     Numerous studies have linked adequate Vitamin D3 levels to a reduced risk of respiratory infections. Meta-analyses have shown that Vitamin D3 supplementation can modestly reduce the risk of acute respiratory tract infections, especially in individuals who are deficient.

  4. Autoimmune Disease Modulation
     Low levels of Vitamin D3 have been associated with an increased risk of autoimmune conditions such as multiple sclerosis, rheumatoid arthritis, and type 1 diabetes. Supplementation may help modulate immune dysregulation and reduce flare-ups in some autoimmune diseases.

Clinical Research Highlights:

  • Martineau et al. (2017): A systematic review and meta-analysis published in BMJ found that Vitamin D supplementation reduced the risk of acute respiratory infections, particularly in people with low baseline levels.

  • Aranow (2011): Reviewed the immunomodulatory effects of Vitamin D and concluded it may play a role in preventing or managing autoimmune diseases.

  • Sassi et al. (2018): Published in Frontiers in Immunology, this paper outlines the role of Vitamin D in regulating both innate and adaptive immune responses.

4. Elderberry (Sambucus nigra extract)

Effective Dose: 150–300 mg extract (10:1)

Elderberry (Sambucus nigra), particularly the black elderberry variety, is a popular botanical used to support immune system health due to its rich profile of antioxidants, vitamins, and bioactive compounds. Traditionally used in folk medicine for treating colds and flu, modern research has begun to validate its potential role in enhancing immune defense.

Elderberry offers immune-supportive benefits primarily through its antiviral action, antioxidant content, and ability to enhance cytokine response. While more large-scale clinical trials are needed, existing evidence supports its use as a complementary approach for immune health, particularly during cold and flu season.

Key Ways Elderberry Supports Immune Health:

  1. Rich in Antioxidants:
    Elderberries are high in flavonoids, especially anthocyanins, which help reduce oxidative stress and inflammation—two factors that can compromise immune response.

  2. Antiviral Properties:
    Several in vitro studies have demonstrated that elderberry extract can inhibit the replication of common respiratory viruses, including influenza A and B. It appears to block viral proteins that allow the virus to attach to and enter host cells.

  3. Cytokine Modulation:
    Elderberry may help regulate the immune system by enhancing the production of certain cytokines (e.g., IL-6, IL-8, and TNF-α), which play important roles in signaling immune responses.

  4. Cold and Flu Symptom Relief:
    Clinical trials suggest elderberry extract may reduce the duration and severity of cold and flu symptoms. A 2004 randomized, double-blind, placebo-controlled study showed that elderberry syrup shortened flu symptoms by about four days compared to placebo.

  5. Vitamin C and Immune Nutrients:
    Elderberries also contain vitamin C and other nutrients that contribute to immune function, including phenolic acids and essential minerals.

Clinical Research Highlights:

  • Zakay-Rones et al. (2004): Participants with influenza who took elderberry syrup (Sambucol) recovered on average 4 days faster than those taking a placebo.

  • Tiralongo et al. (2016): A study involving air travelers found that elderberry extract reduced cold duration and severity during long-haul flights.

  • Porter & Bode (2017): Review evidence suggests elderberry acts directly on viruses and may reduce upper respiratory symptoms by enhancing immune signaling.

5. Echinacea (Echinacea purpurea extract)

Effective Dose: 250–500 mg

Echinacea, commonly known as purple coneflower, is a well-known herbal remedy traditionally used to help prevent and shorten the duration of colds and respiratory infections. It contains a variety of active compounds—including alkamides, caffeic acid derivatives, polysaccharides, and flavonoids—that are believed to stimulate immune function and enhance the body’s natural defense mechanisms.

One of echinacea’s primary immune-supporting actions is its ability to modulate inflammatory responses and increase the activity of white blood cells like macrophages and natural killer (NK) cells, which play a crucial role in identifying and eliminating pathogens. Some studies suggest that echinacea may enhance the production of cytokines, key signaling proteins that regulate immune responses.

Clinical research on echinacea’s efficacy for immune support has shown mixed results, but many studies support its use for reducing the severity and duration of upper respiratory infections when taken at the onset of symptoms. Its immune-modulating effects make it a popular ingredient in cold and flu formulas, often paired with other immune-supportive compounds like zinc, vitamin C, or elderberry.

While echinacea is generally considered safe for short-term use, it may not be suitable for individuals with autoimmune conditions or those on immunosuppressive therapy without medical supervision.

Echinacea, particularly species like Echinacea purpurea and Echinacea angustifolia, is a widely used botanical known for its potential to enhance immune function and help the body fend off infections. Traditionally used by Native American tribes and later popularized in Western herbal medicine, echinacea has gained recognition for its role in supporting upper respiratory health and modulating immune responses.

How Echinacea Supports Immunity

Echinacea contains a complex mix of active constituents, including:

  • Alkamides – shown to activate immune cells like macrophages

  • Caffeic acid derivatives – with antioxidant and anti-inflammatory properties

  • Polysaccharides and glycoproteins – believed to stimulate phagocytosis and increase white blood cell count

These compounds work together to:

  • Enhance phagocytic activity of immune cells

  • Increase natural killer (NK) cell activity

  • Promote the release of cytokines, which coordinate immune responses

  • Reduce inflammation and oxidative stress that can compromise immunity

Formulation and Usage Considerations

Echinacea is most effective when taken at the first signs of illness, especially for short-term immune support during cold and flu season. It’s commonly available in:

  • Tinctures
  • Capsules or tablets
  • Herbal teas
  • Liquid extracts

While generally safe for most people, echinacea should be used with caution in individuals with autoimmune diseases or allergies to plants in the daisy family (Asteraceae). It’s best used intermittently, rather than as a continuous daily supplement.

6. Quercetin

Effective Dose: 250 mg

Quercetin is a plant-derived flavonoid found in a variety of fruits and vegetables, including apples, onions, berries, and leafy greens. It has gained significant attention for its antioxidant, anti-inflammatory, and immune-modulating properties, which together contribute to enhanced immune system function.

Quercetin supports immune health through its antioxidant, anti-inflammatory, and antiviral properties. By strengthening immune cell function and reducing inflammation, quercetin may help the body defend against infections and maintain immune balance. It is particularly beneficial when used as part of a comprehensive immune support regimen that includes other nutrients like vitamin C and zinc.

Key Immune-Supportive Mechanisms of Quercetin:

  1. Antioxidant Protection
     Quercetin neutralizes free radicals and reduces oxidative stress, which is a key factor in immune dysfunction and chronic inflammation. By protecting immune cells from oxidative damage, quercetin helps maintain their functionality and resilience.

  2. Anti-Inflammatory Effects
     Quercetin inhibits pro-inflammatory enzymes such as cyclooxygenase (COX) and lipoxygenase (LOX), and suppresses the production of cytokines like TNF-α and IL-6. This helps modulate the immune response and prevent excessive inflammation, which is crucial in conditions like viral infections and autoimmune disorders.

  3. Enhancement of Antiviral Defense
     Quercetin has demonstrated antiviral activity against several viruses, including influenza, rhinovirus, and coronaviruses, by interfering with viral replication and entry into host cells. It also enhances interferon response, a critical part of the body’s innate antiviral defense system.

  4. Support for Immune Cell Function
     Quercetin improves the activity and responsiveness of key immune cells, such as natural killer (NK) cells, macrophages, and T lymphocytes. These cells play a central role in detecting and eliminating pathogens.

  5. Synergistic Effects with Other Nutrients
     Quercetin is often paired with vitamin C in immune support supplements. Vitamin C enhances the bioavailability of quercetin and works synergistically to support antioxidant defense and immune cell function.

Clinical Research Highlights:

  • A 2010 randomized controlled trial published in Pharmacological Research found that quercetin supplementation reduced the incidence of upper respiratory tract infections in physically active individuals.

  • A 2016 study in Nutrients showed quercetin’s ability to reduce inflammation and improve immune parameters in animal models of viral infection.

Emerging studies suggest that quercetin may help reduce the severity and duration of viral infections when taken preventatively or at early onset.

7. NAC (N-Acetyl Cysteine)

Effective Dose: 250-600 mg

N-Acetyl Cysteine (NAC) is a modified form of the amino acid cysteine and is best known as a precursor to glutathione, one of the body’s most powerful intracellular antioxidants. Its role in immune system health is primarily centered around its ability to reduce oxidative stress, support detoxification, and modulate inflammatory responses, which are all critical to maintaining robust immune function.

NAC is a multifunctional compound that supports immune system health by enhancing antioxidant defenses, reducing inflammation, improving respiratory function, and aiding in viral defense. It is especially useful for individuals under high oxidative stress, dealing with chronic illness, or seeking respiratory immune support during cold and flu seasons.

Key Ways NAC Supports Immune Health:

  1. Glutathione Production
     NAC helps replenish intracellular levels of glutathione, which is essential for the optimal function of immune cells, including T lymphocytes and macrophages. Higher glutathione levels enhance the ability of these cells to respond to pathogens and neutralize free radicals.
  2. Antioxidant Defense
     NAC’s antioxidant effects reduce oxidative stress, which can impair immune cell function and increase susceptibility to infections. By maintaining redox balance, NAC supports the resilience of immune cells under stress.
  3. Mucolytic Action and Respiratory Support
     NAC thins mucus in the airways, improving respiratory health and potentially reducing the risk of infections such as bronchitis, pneumonia, and influenza. This respiratory benefit is especially valuable in the context of immune challenges.
  4. Anti-inflammatory Activity
     NAC helps regulate inflammatory pathways by modulating cytokine production. It may help reduce excessive inflammation seen in chronic conditions or during infections, without suppressing the normal immune response.
  5. Support During Viral Infections
     Clinical and preclinical studies suggest that NAC may inhibit viral replication and modulate the immune response during viral infections like influenza and respiratory syncytial virus (RSV), supporting faster recovery.

Supporting Research:

  • De Flora et al. (1997): In a double-blind placebo-controlled trial, elderly subjects given NAC (600 mg twice daily) for 6 months showed a significantly reduced incidence of influenza-like symptoms and improved immune markers, despite being seropositive for the virus.

  • Geiler et al. (2010): Demonstrated NAC’s ability to inhibit influenza virus replication in vitro by modulating the cellular redox state and inflammatory pathways.

8. Beta-Glucans (from Reishi, Miatake, or Shiitake Mushrooms)

Effective Dose: 100-300 mg

Beta-glucans are naturally occurring polysaccharides found in the cell walls of certain fungi (like Saccharomyces cerevisiae), yeasts, oats, barley, and some medicinal mushrooms (such as Reishi, Maitake, and Shiitake). These compounds are well-recognized for their immune-modulating properties.

Beta-glucans are powerful natural immunomodulators that support immune system health by activating innate immune cells, enhancing pathogen clearance, and promoting resilience to infections. Their role in maintaining immune defense makes them a valuable addition to dietary supplement formulations, especially during periods of heightened immune stress.

Immune Support Mechanisms

  1. Innate Immune Activation:
    Beta-glucans act as biological response modifiers. When consumed, they are recognized by specific receptors on innate immune cells such as macrophages, neutrophils, and dendritic cells (e.g., Dectin-1 and CR3 receptors). This interaction activates the cells, enhancing their ability to detect and destroy pathogens.

  2. Improved Phagocytosis:
    Once immune cells bind to beta-glucans, they increase phagocytic activity—the process by which immune cells engulf and destroy invading microbes, such as bacteria and viruses.

  3. Increased Cytokine Production:
    Beta-glucans stimulate the production of cytokines such as interleukins and tumor necrosis factor (TNF), which are signaling molecules that coordinate the immune response and help recruit more immune cells to sites of infection or inflammation.

  4. Trained Immunity:
    Beta-glucans may enhance the “memory-like” response of innate immunity, a concept known as trained immunity. This can result in a more rapid and robust immune response upon subsequent exposure to pathogens.

Clinical Evidence

  • A 2009 randomized controlled trial published in Medicine & Science in Sports & Exercise found that beta-glucan supplementation significantly reduced upper respiratory tract infections in marathon runners compared to placebo (Talbott et al., 2009).

  • A 2013 study in Nutrition reported that daily intake of beta-glucans derived from baker’s yeast decreased the incidence of cold and flu symptoms in healthy adults (Jesenak et al., 2013).

Beta-glucans have also been studied for their potential adjunctive use in cancer therapies to improve immune surveillance and recovery following chemotherapy or radiation.

9. Propolis Extract

Propolis is a resin-like substance produced by bees from plant resins, used to seal and protect their hives. Rich in bioactive compounds like flavonoids, phenolic acids, and esters, propolis extract has long been used in traditional medicine and is now recognized for its immune-supportive properties.

Key Immune-Support Benefits of Propolis Extract:

  1. Antimicrobial Activity
     Propolis has broad-spectrum antimicrobial effects against bacteria, viruses, and fungi. It helps inhibit the growth of pathogens and may support the body’s first line of defense by enhancing the integrity of mucosal barriers (e.g., in the mouth and respiratory tract).

  2. Anti-Inflammatory Effects
     Chronic inflammation can weaken the immune system. Propolis contains compounds like caffeic acid phenethyl ester (CAPE) that modulate inflammatory cytokines such as TNF-α and IL-6, supporting a balanced immune response without overactivation.

  3. Immune Cell Modulation
     Propolis has been shown to enhance the activity of macrophages, natural killer (NK) cells, and lymphocytes—key players in both innate and adaptive immunity. This immune-boosting activity may help the body detect and respond to infections more effectively.

  4. Antioxidant Support
     The flavonoids in propolis combat oxidative stress, which can otherwise impair immune cell function. Reducing free radical damage supports healthier immune surveillance and response mechanisms.

  5. Respiratory Tract Protection
     Clinical studies suggest propolis may reduce the duration and severity of upper respiratory infections (URTIs), especially when taken at the onset of symptoms. It may help soothe sore throats, reduce cough, and support oral and throat mucosal immunity.

Clinical Research Highlights:

  • A 2021 meta-analysis in Phytotherapy Research concluded that propolis supplementation reduced the duration of common colds and improved symptoms such as sore throat and congestion.

  • A 2019 study in Journal of Ethnopharmacology showed propolis modulated cytokine production and enhanced macrophage activity in vitro.

  • A 2016 randomized clinical trial found that propolis mouthwash reduced oral microbial load and supported oral immune health in school-aged children.

10. Vitamin A (Beta-Carotene)

Vitamin A is indispensable for immune health, helping the body resist infections and regulate immune responses effectively.

Vitamin A plays a critical role in supporting the immune system by enhancing both innate and adaptive immunity. As a fat-soluble vitamin, it contributes to maintaining the integrity of epithelial tissues — the body’s first line of defense — such as the skin, respiratory tract, and gastrointestinal lining. These barriers act as physical shields against pathogens, and Vitamin A helps keep them intact and functioning optimally.

On a cellular level, Vitamin A supports the immune system by regulating the production and activity of white blood cells, including lymphocytes and macrophages, which identify and destroy harmful pathogens. It is particularly essential for the development and function of T-cells, which are central to adaptive immunity.

Vitamin A also influences the production of immunoglobulins, particularly IgA, an antibody that plays a crucial role in mucosal immunity by neutralizing pathogens in the respiratory and digestive tracts.

Key immune-supportive roles of Vitamin A include:

  • Maintaining mucosal barriers that trap pathogens.

  • Supporting white blood cell differentiation and activity.

  • Promoting antibody production.

  • Modulating inflammatory responses to prevent excessive immune reactions.

Deficiency Risks:

Individuals with Vitamin A deficiency are more susceptible to infections, especially respiratory and gastrointestinal infections, and may experience impaired immune responses. In children, deficiency has been linked to increased severity of measles and higher mortality rates from infectious diseases.

Sources of Vitamin A:

  • Preformed Vitamin A (retinol): Found in animal products like liver, dairy, and fish.

  • Provitamin A carotenoids (e.g., beta-carotene): Found in plant-based foods like sweet potatoes, carrots, and leafy greens.

The Ultimate Immune System Support Gummy Stack

Here’s how you can fit these 10 powerful ingredients into a single 9 gram  immune support gummy, keeping any ingredient over 250mg to one serving max for compliance and efficacy.

This is more than a daily vitamin—it’s a comprehensive immune fortifier in a single delicious delivery. By targeting antioxidant defense, barrier integrity, white blood cell function, and respiratory resilience, this gummy stack covers all your immune bases.

Ingredient

Vitamin C (Ascorbic Acid)

Zinc Citrate

Vitamin D3

Elderberry Extract (10:1)

Quercetin

NAC

Beta-Glucans

Echinacea Extract

Propolis Extract

Vitamin A (Beta Carotene)

Amount

250 mg

15 mg

25 mcg (1000 IU)

150 mg

250 mg

250 mg

150 mg

250 mg

100mg

750 mcg

Purpose

Antioxidant & immune activation

Immune cell function

Innate & adaptive support

Viral support

Zinc ionophore, antihistamine

Glutathione & lung support

Immune activation

Cytokine modulation

Antimicrobial & barrier support

Mucosal health

How Green Star Labs Can Help

Green Star Labs is uniquely positioned to bring your unique Immune Support Supplement stack to market:

  • Custom Formulations using clinically-backed ingredients with optimal bioavailability
  • Delivery Formats: capsules, powders, tinctures, gummies, and water-soluble shots
  • Low MOQ options and flexible pricing models
  • In-House R&D and Regulatory Guidance for claims, packaging, and compliance
  • Manufacturing in NSF, cGMP, and FDA-registered facility

Green Star Labs can help you create a standout product backed by science and manufactured to the highest standards.

Let’s Get Started Today!

If an innovative Immune System Support  Supplement Stack formulation  is a good fit for your wellness brand, request a quote now to take the first step to making your vision a reality.

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Richard Weisner

About Richard Weisner

My goal is to help businesses scale and succeed by offering personalized support, industry knowledge, and access to cutting-edge manufacturing technology. Let’s connect and explore how we can collaborate to bring your product ideas to life!

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FDA Disclaimer: Content published in our Nutraceutical Market Trends blog is for educational purposes and is not intended to represent medical advice. Our audience is B2B brand owners and customers who are interested in developing innovative nutraceutical products. Content that may indicate specific health claims for ingredients or delivery systems has not been evaluated by the FDA. Dietary supplement products manufactured by Green Star Labs, Inc. are not intended to diagnose, treat, cure or prevent any disease.

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