
Natrol Quercetin Complex - Immune Support with Vitamin C & Bioflavonoids - 50 Capsules


Milk
Low RiskMilk is whole milk from cows, primarily used as a source of nutrition and an ingredient in various food products. It contains proteins, fats, carbohydrates, vitamins, and minerals, contributing to its functional benefits in culinary applications.
Sustai Insights
Milk provides essential nutrients and serves as a versatile ingredient in food, enhancing flavor, texture, and nutritional value. It is generally regarded as safe with low concerns for carcinogenicity, allergies, or developmental toxicity. Environmental risks are minimal, and regulatory bodies impose no significant warnings. However, individuals with lactose intolerance or dairy allergies should exercise caution. Overall, milk is assessed as low risk based on current scientific consensus.
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.
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.
Glycine Soja (Soybean)
Low RiskGlycine soja, commonly known as soybean, is a leguminous plant used in various products for its oil, protein, and cosmetic properties. It serves primarily as an emollient and skin-conditioning agent, enhancing moisture retention and texture in formulations.
Sustai Insights
Glycine soja offers functional benefits such as skin conditioning and moisture retention, contributing to product efficacy. It is sustainably sourced and biodegradable. Health risks are minimal, with low concerns for carcinogenicity, allergies, and reproductive toxicity. Environmental risks are also low. Regulatory bodies have no current advisories against it, indicating a low overall risk level. Safe usage practices include avoiding excessive exposure, and alternatives may include other plant-derived oils.
Egg
Low RiskEgg is the entire content of chicken eggs, commonly used as an ingredient in various products for its nutritional and functional properties.
Sustai Insights
Eggs are known for their functional benefits, including serving as a binding agent and providing protein. They are typically sustainably sourced and biodegradable. Health risks are considered low, with minimal concerns regarding carcinogenicity, allergies, or reproductive toxicity. Environmental risks are also low, with no significant pollutant potential. Regulatory bodies do not impose current restrictions on egg usage. Overall, the risk level is low, and safe usage practices should be observed, though alternatives like plant-based substitutes may be considered for those with allergies.
Triticum Vulgare (Wheat)
Low RiskTriticum vulgare, commonly known as wheat, is a cereal grain primarily used in food products and various cosmetic formulations. It serves as a source of carbohydrates and can also function as a binding agent, thickener, or emulsifier in formulations. Wheat is widely recognized for its role in nutrition and its diverse applications in the food industry.
Sustai Insights
Triticum vulgare offers functional benefits as a binding agent and source of carbohydrates, with sustainable attributes if sourced responsibly. Health risks are low, with minimal concerns regarding carcinogenicity, allergies, or reproductive toxicity. Environmental risks, including pollution potential, are also low. Regulatory bodies do not currently impose restrictions on its use. Overall, the risk level associated with this ingredient is low, making it a safe choice for both consumers and the environment.
Yeast
Low RiskYeast is a class of microorganisms from the Hemiascomycetes subphylum, widely used in food production and fermentation processes. It functions primarily as a leavening agent in baking and as a fermenting agent in brewing and winemaking. Yeast also plays a role in the production of certain dietary supplements.
Sustai Insights
Yeast serves as an effective leavening agent and contributes to fermentation, enhancing flavor and texture in foods. It is considered low risk regarding health concerns, with minimal associations with carcinogenicity, allergies, or reproductive toxicity. Environmentally, yeast is not a pollutant and does not bioaccumulate. Regulatory bodies, including the FDA, have no specific restrictions on its use. Given the low risk profile, yeast is a safe ingredient; however, individuals with specific allergies should consult health professionals. Alternatives like baking soda or sourdough starters may be considered for specific applications.
Milk
Low RiskMilk is whole milk from cows, primarily used as a source of nutrition and an ingredient in various food products. It contains proteins, fats, carbohydrates, vitamins, and minerals, contributing to its functional benefits in culinary applications.
Sustai Insights
Milk provides essential nutrients and serves as a versatile ingredient in food, enhancing flavor, texture, and nutritional value. It is generally regarded as safe with low concerns for carcinogenicity, allergies, or developmental toxicity. Environmental risks are minimal, and regulatory bodies impose no significant warnings. However, individuals with lactose intolerance or dairy allergies should exercise caution. Overall, milk is assessed as low risk based on current scientific consensus.
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.
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.
Glycine Soja (Soybean)
Low RiskGlycine soja, commonly known as soybean, is a leguminous plant used in various products for its oil, protein, and cosmetic properties. It serves primarily as an emollient and skin-conditioning agent, enhancing moisture retention and texture in formulations.
Sustai Insights
Glycine soja offers functional benefits such as skin conditioning and moisture retention, contributing to product efficacy. It is sustainably sourced and biodegradable. Health risks are minimal, with low concerns for carcinogenicity, allergies, and reproductive toxicity. Environmental risks are also low. Regulatory bodies have no current advisories against it, indicating a low overall risk level. Safe usage practices include avoiding excessive exposure, and alternatives may include other plant-derived oils.
Egg
Low RiskEgg is the entire content of chicken eggs, commonly used as an ingredient in various products for its nutritional and functional properties.
Sustai Insights
Eggs are known for their functional benefits, including serving as a binding agent and providing protein. They are typically sustainably sourced and biodegradable. Health risks are considered low, with minimal concerns regarding carcinogenicity, allergies, or reproductive toxicity. Environmental risks are also low, with no significant pollutant potential. Regulatory bodies do not impose current restrictions on egg usage. Overall, the risk level is low, and safe usage practices should be observed, though alternatives like plant-based substitutes may be considered for those with allergies.
Triticum Vulgare (Wheat)
Low RiskTriticum vulgare, commonly known as wheat, is a cereal grain primarily used in food products and various cosmetic formulations. It serves as a source of carbohydrates and can also function as a binding agent, thickener, or emulsifier in formulations. Wheat is widely recognized for its role in nutrition and its diverse applications in the food industry.
Sustai Insights
Triticum vulgare offers functional benefits as a binding agent and source of carbohydrates, with sustainable attributes if sourced responsibly. Health risks are low, with minimal concerns regarding carcinogenicity, allergies, or reproductive toxicity. Environmental risks, including pollution potential, are also low. Regulatory bodies do not currently impose restrictions on its use. Overall, the risk level associated with this ingredient is low, making it a safe choice for both consumers and the environment.
Yeast
Low RiskYeast is a class of microorganisms from the Hemiascomycetes subphylum, widely used in food production and fermentation processes. It functions primarily as a leavening agent in baking and as a fermenting agent in brewing and winemaking. Yeast also plays a role in the production of certain dietary supplements.
Sustai Insights
Yeast serves as an effective leavening agent and contributes to fermentation, enhancing flavor and texture in foods. It is considered low risk regarding health concerns, with minimal associations with carcinogenicity, allergies, or reproductive toxicity. Environmentally, yeast is not a pollutant and does not bioaccumulate. Regulatory bodies, including the FDA, have no specific restrictions on its use. Given the low risk profile, yeast is a safe ingredient; however, individuals with specific allergies should consult health professionals. Alternatives like baking soda or sourdough starters may be considered for specific applications.
Support your immune system with Natrol Quercetin Complex. This high-potency supplement combines Quercetin with Vitamin C and bioflavonoids to provide essential antioxidant protection and enhance overall health.
- Immune Support: Formulated to bolster your body's defenses.
- Antioxidant Protection: Combines Quercetin with Vitamin C for enhanced benefits.
- Quality Ingredients: Made with 100% drug-free, high-quality components.
- Easy to Use: Two capsules daily with a meal for optimal results.
- 25-Day Supply: Each bottle contains 50 capsules for lasting support.
- Trusted Brand: Natrol is known for its commitment to quality and efficacy.
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Recommended Products
Support your immune system with Natrol Quercetin Complex. This high-potency supplement combines Quercetin with Vitamin C and bioflavonoids to provide essential antioxidant protection and enhance overall health.
- Immune Support: Formulated to bolster your body's defenses.
- Antioxidant Protection: Combines Quercetin with Vitamin C for enhanced benefits.
- Quality Ingredients: Made with 100% drug-free, high-quality components.
- Easy to Use: Two capsules daily with a meal for optimal results.
- 25-Day Supply: Each bottle contains 50 capsules for lasting support.
- Trusted Brand: Natrol is known for its commitment to quality and efficacy.

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Customer Reviews

Customers’ View
Customers appreciate the effectiveness and value of the Natrol Quercetin Complex, highlighting its role in supporting immune health. Many users note significant relief from allergy symptoms, including improved asthma conditions and reduced eczema-related itching. One customer remarked, "This has been the only thing that has ever worked for me," reflecting a strong sentiment about its efficacy. The supplement's affordability is frequently mentioned, with several reviews praising it as a "great buy" compared to more expensive alternatives. Additionally, customers value the quality ingredients used, emphasizing the absence of artificial additives. Overall, customers find this product to be a reliable and health-conscious choice for enhancing their well-being.
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