
Natrol Immune Defense Supplement - Supports Immune Health with EpiCor, Vitamins C & D3 - 30 Count


Selenium
High RiskSelenium is a trace mineral essential for various bodily functions, including antioxidant activity and thyroid hormone metabolism. It is commonly found in dietary sources such as seafood, meat, and nuts. Selenium plays a role in immune function and may protect against oxidative stress.
Sustai Insights
Selenium offers functional benefits such as antioxidant properties and support for thyroid health. However, it poses health risks, including potential developmental and reproductive toxicity, though concerns about carcinogenicity and allergenic potential are low. Environmental risks include its persistence and bioaccumulation in ecosystems. Regulatory agencies have placed significant use restrictions on selenium, categorizing it as high risk overall. Safe usage practices are essential, and alternatives like zinc or vitamin E may be considered for similar benefits.
Vitamin D3
High RiskVitamin D3, also known as cholecalciferol, is a fat-soluble vitamin important for calcium metabolism and bone health. It is synthesized in the skin upon exposure to sunlight and is also found in some foods and supplements. Its primary function is to promote the absorption of calcium and phosphorus in the body.
Sustai Insights
Vitamin D3 offers functional benefits such as supporting bone health and immune function. However, excessive intake can lead to toxicity, presenting risks like hypercalcemia. Environmental concerns include its potential for bioaccumulation. Regulatory bodies impose usage restrictions due to these risks, resulting in a high overall risk assessment. Safe usage practices should be observed, and alternatives such as vitamin D2 may be considered.
Zinc
Medium RiskZinc is a trace mineral essential for various biological functions, including immune system support and cellular metabolism. It is commonly used in topical products for its antibacterial properties and is often included in formulations for skin health and wound healing.
Sustai Insights
Zinc offers functional benefits such as promoting skin health and providing antimicrobial effects, and it can be sustainably sourced. However, it poses moderate environmental risks due to potential bioaccumulation. Health risks are generally low, with concerns mainly related to developmental and reproductive toxicity at high exposures. Regulatory bodies have imposed some restrictions on its use, indicating a medium overall risk assessment. Safe usage practices should be followed, and alternatives like magnesium may offer similar benefits with lower risks.
Ascorbic Acid (Vitamin C)
Low RiskAscorbic acid (Vitamin C) is a naturally occurring antioxidant essential for various biological functions, including collagen synthesis and immune response. It is commonly used in cosmetic and food products for its preservative properties and ability to enhance skin brightness.
Sustai Insights
Ascorbic acid provides functional benefits as an effective antioxidant and preservative, contributing to skin health and product stability. It is generally recognized as safe with low health risks, including minimal concerns for carcinogenicity and allergies. Environmentally, it poses low risks, as it is biodegradable and does not bioaccumulate. Regulatory bodies like the FDA have not imposed significant restrictions on its use. Overall, the ingredient presents a low risk, with safe usage practices ensuring consumer safety, and alternatives such as natural extracts exist for those seeking different formulations.
Water
Low RiskWater is a clear, colorless liquid essential for various biological processes. It serves as a solvent in formulations, facilitating the dissolution of other ingredients and enhancing product texture and application. Additionally, water plays a crucial role in hydration and is a key component in many cosmetic and personal care products.
Sustai Insights
Water is an effective solvent and hydrator, contributing to the texture and efficacy of formulations. It is biodegradable and generally regarded as safe, with low concerns regarding carcinogenicity, allergies, and reproductive toxicity. However, excessive water usage can lead to environmental concerns, particularly regarding resource depletion. Regulatory bodies do not impose restrictions on water use in cosmetics. Overall, the risks associated with water are low, making it a safe and essential ingredient.
Magnesium Stearate
Low RiskMagnesium stearate is a magnesium salt of stearic acid, commonly used as a lubricant and anti-caking agent in pharmaceuticals and cosmetic products. It helps in the manufacturing process by preventing ingredients from clumping together and ensuring even distribution in formulations.
Sustai Insights
Magnesium stearate is recognized for its functional benefits as a lubricant and anti-caking agent, enhancing product stability. It is considered low risk regarding health concerns, including carcinogenicity and allergenic potential, with no significant environmental hazards reported. Regulatory bodies, including the FDA, have not imposed major restrictions, supporting its safe use in various applications. Recommended usage levels are typically low, maintaining safety in formulations. Overall, the ingredient is assessed as low risk, with no significant adverse health or environmental impacts identified.
Gelatin
Low RiskGelatin is a product obtained by the partial hydrolysis of collagen, a protein derived from animal sources, primarily from the skin and bones of pigs and cows. It is commonly used as a gelling agent, thickener, and stabilizer in various food products, pharmaceuticals, and cosmetics.
Sustai Insights
Gelatin serves as an effective gelling agent and thickener, widely utilized in food, pharmaceuticals, and cosmetics. It is generally recognized as safe, with low associated risks for carcinogenicity, allergies, and reproductive toxicity. Environmental concerns are minimal, as it is biodegradable and sourced from animal byproducts. Regulatory bodies impose few restrictions, affirming its safety for use. Overall, gelatin presents a low-risk profile, making it a reliable ingredient in various applications.
Maltodextrin
Low RiskMaltodextrin is a saccharide material obtained from starch through partial hydrolysis. It is commonly used as a thickener, filler, or preservative in food and cosmetic products due to its ability to enhance texture and stability.
Sustai Insights
Maltodextrin serves as an effective thickener and stabilizer in various products, and it is typically derived from renewable sources. Health risks are minimal, as it poses low concerns for carcinogenicity, allergies, and developmental toxicity. Environmental impacts are also low, with no significant pollutant or bioaccumulation potential. Regulatory bodies do not impose major restrictions on its use. Overall, maltodextrin presents a low-risk profile, making it a widely accepted ingredient in food and cosmetic formulations.
Sand
Low RiskSand is loose, granular particles of worn or disintegrated rock, primarily composed of silica. It is commonly used as an abrasive, filler, or in construction and landscaping for its structural properties.
Sustai Insights
Sand offers functional benefits such as providing bulk and texture in various products, and it is generally considered to have low health risks, with minimal concerns regarding carcinogenicity, allergies, or reproductive toxicity. Environmentally, sand does not contribute significantly to pollution and is not bioaccumulative. Regulatory bodies do not impose restrictions on sand usage, maintaining its low-risk status. Safe usage practices should be followed to avoid inhalation of fine particles. Overall, sand is a low-risk ingredient with no notable negative impacts.
Selenium
High RiskSelenium is a trace mineral essential for various bodily functions, including antioxidant activity and thyroid hormone metabolism. It is commonly found in dietary sources such as seafood, meat, and nuts. Selenium plays a role in immune function and may protect against oxidative stress.
Sustai Insights
Selenium offers functional benefits such as antioxidant properties and support for thyroid health. However, it poses health risks, including potential developmental and reproductive toxicity, though concerns about carcinogenicity and allergenic potential are low. Environmental risks include its persistence and bioaccumulation in ecosystems. Regulatory agencies have placed significant use restrictions on selenium, categorizing it as high risk overall. Safe usage practices are essential, and alternatives like zinc or vitamin E may be considered for similar benefits.
Ascorbic Acid (Vitamin C)
Low RiskAscorbic acid (Vitamin C) is a naturally occurring antioxidant essential for various biological functions, including collagen synthesis and immune response. It is commonly used in cosmetic and food products for its preservative properties and ability to enhance skin brightness.
Sustai Insights
Ascorbic acid provides functional benefits as an effective antioxidant and preservative, contributing to skin health and product stability. It is generally recognized as safe with low health risks, including minimal concerns for carcinogenicity and allergies. Environmentally, it poses low risks, as it is biodegradable and does not bioaccumulate. Regulatory bodies like the FDA have not imposed significant restrictions on its use. Overall, the ingredient presents a low risk, with safe usage practices ensuring consumer safety, and alternatives such as natural extracts exist for those seeking different formulations.
Water
Low RiskWater is a clear, colorless liquid essential for various biological processes. It serves as a solvent in formulations, facilitating the dissolution of other ingredients and enhancing product texture and application. Additionally, water plays a crucial role in hydration and is a key component in many cosmetic and personal care products.
Sustai Insights
Water is an effective solvent and hydrator, contributing to the texture and efficacy of formulations. It is biodegradable and generally regarded as safe, with low concerns regarding carcinogenicity, allergies, and reproductive toxicity. However, excessive water usage can lead to environmental concerns, particularly regarding resource depletion. Regulatory bodies do not impose restrictions on water use in cosmetics. Overall, the risks associated with water are low, making it a safe and essential ingredient.
Vitamin D3
High RiskVitamin D3, also known as cholecalciferol, is a fat-soluble vitamin important for calcium metabolism and bone health. It is synthesized in the skin upon exposure to sunlight and is also found in some foods and supplements. Its primary function is to promote the absorption of calcium and phosphorus in the body.
Sustai Insights
Vitamin D3 offers functional benefits such as supporting bone health and immune function. However, excessive intake can lead to toxicity, presenting risks like hypercalcemia. Environmental concerns include its potential for bioaccumulation. Regulatory bodies impose usage restrictions due to these risks, resulting in a high overall risk assessment. Safe usage practices should be observed, and alternatives such as vitamin D2 may be considered.
Magnesium Stearate
Low RiskMagnesium stearate is a magnesium salt of stearic acid, commonly used as a lubricant and anti-caking agent in pharmaceuticals and cosmetic products. It helps in the manufacturing process by preventing ingredients from clumping together and ensuring even distribution in formulations.
Sustai Insights
Magnesium stearate is recognized for its functional benefits as a lubricant and anti-caking agent, enhancing product stability. It is considered low risk regarding health concerns, including carcinogenicity and allergenic potential, with no significant environmental hazards reported. Regulatory bodies, including the FDA, have not imposed major restrictions, supporting its safe use in various applications. Recommended usage levels are typically low, maintaining safety in formulations. Overall, the ingredient is assessed as low risk, with no significant adverse health or environmental impacts identified.
Zinc
Medium RiskZinc is a trace mineral essential for various biological functions, including immune system support and cellular metabolism. It is commonly used in topical products for its antibacterial properties and is often included in formulations for skin health and wound healing.
Sustai Insights
Zinc offers functional benefits such as promoting skin health and providing antimicrobial effects, and it can be sustainably sourced. However, it poses moderate environmental risks due to potential bioaccumulation. Health risks are generally low, with concerns mainly related to developmental and reproductive toxicity at high exposures. Regulatory bodies have imposed some restrictions on its use, indicating a medium overall risk assessment. Safe usage practices should be followed, and alternatives like magnesium may offer similar benefits with lower risks.
Gelatin
Low RiskGelatin is a product obtained by the partial hydrolysis of collagen, a protein derived from animal sources, primarily from the skin and bones of pigs and cows. It is commonly used as a gelling agent, thickener, and stabilizer in various food products, pharmaceuticals, and cosmetics.
Sustai Insights
Gelatin serves as an effective gelling agent and thickener, widely utilized in food, pharmaceuticals, and cosmetics. It is generally recognized as safe, with low associated risks for carcinogenicity, allergies, and reproductive toxicity. Environmental concerns are minimal, as it is biodegradable and sourced from animal byproducts. Regulatory bodies impose few restrictions, affirming its safety for use. Overall, gelatin presents a low-risk profile, making it a reliable ingredient in various applications.
Maltodextrin
Low RiskMaltodextrin is a saccharide material obtained from starch through partial hydrolysis. It is commonly used as a thickener, filler, or preservative in food and cosmetic products due to its ability to enhance texture and stability.
Sustai Insights
Maltodextrin serves as an effective thickener and stabilizer in various products, and it is typically derived from renewable sources. Health risks are minimal, as it poses low concerns for carcinogenicity, allergies, and developmental toxicity. Environmental impacts are also low, with no significant pollutant or bioaccumulation potential. Regulatory bodies do not impose major restrictions on its use. Overall, maltodextrin presents a low-risk profile, making it a widely accepted ingredient in food and cosmetic formulations.
Sand
Low RiskSand is loose, granular particles of worn or disintegrated rock, primarily composed of silica. It is commonly used as an abrasive, filler, or in construction and landscaping for its structural properties.
Sustai Insights
Sand offers functional benefits such as providing bulk and texture in various products, and it is generally considered to have low health risks, with minimal concerns regarding carcinogenicity, allergies, or reproductive toxicity. Environmentally, sand does not contribute significantly to pollution and is not bioaccumulative. Regulatory bodies do not impose restrictions on sand usage, maintaining its low-risk status. Safe usage practices should be followed to avoid inhalation of fine particles. Overall, sand is a low-risk ingredient with no notable negative impacts.
Discover Natrol Immune Boost Capsules, a powerful immune support supplement crafted with EpiCor, clinically tested to enhance immune function. Infused with essential vitamins and minerals, this formula promotes daily immune health maintenance.
- Immune Support: EpiCor, a superfood, is backed by clinical studies that demonstrate its ability to strengthen immune function.*
- Vitamins & Minerals: Includes Vitamin C, D3, Zinc, and Selenium, all known for their critical roles in supporting immune health and overall well-being.*
- Easy Daily Routine: Just one capsule daily with a meal helps ensure consistent immune support.
- Health Partnerships: Pair with a balanced diet rich in fruits and vegetables for optimal results.
- Trusted Brand: Natrol, a leader in health and wellness, is recognized for its commitment to quality and efficacy in supplements.*
Elevate your wellness journey with Natrol Immune Boost Capsules, designed for health-conscious consumers who prioritize sustainable and effective solutions.
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Recommended Products
Discover Natrol Immune Boost Capsules, a powerful immune support supplement crafted with EpiCor, clinically tested to enhance immune function. Infused with essential vitamins and minerals, this formula promotes daily immune health maintenance.
- Immune Support: EpiCor, a superfood, is backed by clinical studies that demonstrate its ability to strengthen immune function.*
- Vitamins & Minerals: Includes Vitamin C, D3, Zinc, and Selenium, all known for their critical roles in supporting immune health and overall well-being.*
- Easy Daily Routine: Just one capsule daily with a meal helps ensure consistent immune support.
- Health Partnerships: Pair with a balanced diet rich in fruits and vegetables for optimal results.
- Trusted Brand: Natrol, a leader in health and wellness, is recognized for its commitment to quality and efficacy in supplements.*
Elevate your wellness journey with Natrol Immune Boost Capsules, designed for health-conscious consumers who prioritize sustainable and effective solutions.

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Customer Reviews

Customers’ View
Customers appreciate the effectiveness and immune-boosting properties of these Immune Support Capsules. Many report significant improvements in their health, claiming the supplement helps prevent colds and supports overall well-being. For instance, users noted feeling better within hours and experiencing fewer allergies and illnesses throughout the seasons. Several customers specifically highlight how the capsules have enhanced their energy levels and immune function, with some stating they haven't suffered from colds or flu since starting the supplement. Additionally, the drug-free formula aligns with health-conscious values. Overall, customers find this product to be a reliable support for their immune health, making it a valued addition to their wellness routines.
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