
THORNE Vitamin C - Immune Support & Collagen Booster with Citrus Bioflavonoids - 90 Capsules


Hydroxymethylcellulose
Low RiskHydroxymethylcellulose is a synthetic polymer derived from cellulose, primarily used as a thickening agent, emulsifier, and film-forming agent in various personal care and cosmetic products. It enhances texture, stability, and moisture retention, making it suitable for use in creams, lotions, and gels.
Sustai Insights
Hydroxymethylcellulose serves effectively as a thickener and stabilizer, contributing to product texture and moisture retention. It is considered low risk for health concerns such as carcinogenicity, allergies, and reproductive toxicity. Environmentally, it is not classified as a pollutant or bioaccumulative, aligning with regulatory standards in multiple regions. Overall, its risk level is assessed as low, with no significant adverse effects reported. Safe usage practices should be followed, and while alternatives exist, hydroxymethylcellulose remains a suitable choice in formulations.
Citrus Bioflavonoids
Low RiskCitrus bioflavonoids are a group of plant-derived compounds commonly found in citrus fruits. They are primarily known for their antioxidant properties and are often used in dietary supplements and cosmetic formulations to support skin health and overall wellness.
Sustai Insights
Citrus bioflavonoids offer functional benefits such as antioxidant activity and potential support for skin health. They are generally recognized as safe with low concerns for carcinogenicity, allergies, and reproductive toxicity. No significant environmental hazards have been identified, and they are not restricted by regulatory bodies. Overall, they present a low risk profile with no known severe adverse effects. Safe usage practices include adhering to recommended dosages. Alternatives are available, though citrus bioflavonoids are often valued for their specific 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.
Hydroxymethylcellulose
Low RiskHydroxymethylcellulose is a synthetic polymer derived from cellulose, primarily used as a thickening agent, emulsifier, and film-forming agent in various personal care and cosmetic products. It enhances texture, stability, and moisture retention, making it suitable for use in creams, lotions, and gels.
Sustai Insights
Hydroxymethylcellulose serves effectively as a thickener and stabilizer, contributing to product texture and moisture retention. It is considered low risk for health concerns such as carcinogenicity, allergies, and reproductive toxicity. Environmentally, it is not classified as a pollutant or bioaccumulative, aligning with regulatory standards in multiple regions. Overall, its risk level is assessed as low, with no significant adverse effects reported. Safe usage practices should be followed, and while alternatives exist, hydroxymethylcellulose remains a suitable choice in formulations.
Citrus Bioflavonoids
Low RiskCitrus bioflavonoids are a group of plant-derived compounds commonly found in citrus fruits. They are primarily known for their antioxidant properties and are often used in dietary supplements and cosmetic formulations to support skin health and overall wellness.
Sustai Insights
Citrus bioflavonoids offer functional benefits such as antioxidant activity and potential support for skin health. They are generally recognized as safe with low concerns for carcinogenicity, allergies, and reproductive toxicity. No significant environmental hazards have been identified, and they are not restricted by regulatory bodies. Overall, they present a low risk profile with no known severe adverse effects. Safe usage practices include adhering to recommended dosages. Alternatives are available, though citrus bioflavonoids are often valued for their specific 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.
Discover THORNE Vitamin C, a potent blend of vitamin C and citrus bioflavonoids designed to elevate your health. This gluten-free supplement supports immune function, promotes collagen production for healthy skin, and aids in wound healing, making it a must-have for your wellness routine.
- Immune Support: Harness the antioxidant benefits of vitamin C paired with natural citrus flavonoids to bolster your immune system.
- Healthy Skin: Enhance skin, nail, and hair health through increased collagen production, promoting a radiant appearance.
- Wound Healing: Vitamin C’s antioxidative properties support recovery from surgery and injury, ensuring a faster healing process.
- Free From Allergens: This formula is free from gluten, eggs, tree nuts, dairy, and more, making it suitable for various dietary needs.
- Trusted Brand: Chosen by champions and professional teams, Thorne collaborates with Mayo Clinic, ensuring high-quality, research-backed supplements for your health journey.
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Discover THORNE Vitamin C, a potent blend of vitamin C and citrus bioflavonoids designed to elevate your health. This gluten-free supplement supports immune function, promotes collagen production for healthy skin, and aids in wound healing, making it a must-have for your wellness routine.
- Immune Support: Harness the antioxidant benefits of vitamin C paired with natural citrus flavonoids to bolster your immune system.
- Healthy Skin: Enhance skin, nail, and hair health through increased collagen production, promoting a radiant appearance.
- Wound Healing: Vitamin C’s antioxidative properties support recovery from surgery and injury, ensuring a faster healing process.
- Free From Allergens: This formula is free from gluten, eggs, tree nuts, dairy, and more, making it suitable for various dietary needs.
- Trusted Brand: Chosen by champions and professional teams, Thorne collaborates with Mayo Clinic, ensuring high-quality, research-backed supplements for your health journey.

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Customer Reviews
Customers’ View
Customers appreciate the quality and effectiveness of Thorne's Vitamin C capsules, noting that they experience no stomach upset, making them gentle on the digestive system. Many users highlight the product's immune support benefits and its role in promoting skin health due to its collagen-boosting properties. The capsules are also praised for being easy to swallow and digest, with no unpleasant taste. Additionally, customers find them to offer good value for money, often mentioning that they feel the supplements work well for their health needs. Overall, this product is well-regarded among health-conscious consumers looking for reliable immune support.
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