Swanson Buffered Vitamin C, 500mg - 250 tablets

Vitamin C (from Calcium Ascorbate), Calcium (from calcium ascorbate), Vitamin C (from Calcium Ascorbate), Calcium (from calcium ascorbate)

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

As a dietary supplement, take one tablet one to three times per day with food and water. Store in a cool, dry place. WARNING: For adults only. Consult your healthcare provider before using this or any product if you are pregnant or nursing, taking medication or have a medical condition. Keep out of reach of children. Do not use if seal is broken.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Vitamin C (Calcium ascorbate)

Vitamin C, often known as ascorbic acid, is a water-soluble nutrient that helps in collagen formation and supports normal immune system function. This buffered form uses calcium to cut acidity and improve tolerability, with citrus bioflavonoids contributing to absorption and antioxidant support.

This formulation is vegan and buffering calcium helps to minimise gastric irritation, aiding GI comfort while keeping the nutrient’s role in the body.

What Does Vitamin C (Calcium ascorbate) Do?

Vitamin C helps support normal immune system function and participates in collagen synthesis, linking skin and tissue function with antioxidant protection, in line with EFSA guidance. The calcium buffering and bioflavonoids may aid uptake and utilisation of the nutrient.

Dr. Hemilä of Helsinki University found that vitamin C may influence how long immune-related challenges last and how severe they are in physically stressed individuals, reflecting its role in supporting normal immune function.

This product is not intended to diagnose, treat, cure, or prevent any disease.

Swanson kicks off with a science‑backed, consumer‑focused approach, making Swanson the clear go‑to for this Buffered Vitamin C. When compared with other brands, Swanson stands out for its well‑established market presence and focus on value without compromising quality. A key differentiator is the brand’s emphasis on transparent sourcing and strong quality checks, supported by GMP‑style manufacturing practices and regular purity and potency checks. For this reason, we trust Swanson to bring consistent, dependable ingredients for our customers.

The manufacturer’s reputation for reliability and clear labeling reinforces our decision. Swanson is widely recognised for affordability paired with rigorous standards, building broad consumer trust while maintaining a positive track record in the supplement sector. This combination of heritage and quality focus aligns with our own standards for rigorous evaluation and expert curation. Our panel of medical experts evaluates such strengths through our our team of medical experts and confirms alignment with our quality certification process.

For this product, Swanson’s commitment to manufacturing excellence and safety standards makes it a natural fit for Welzo, ensuring premium quality from ingredient pick to final tablet making.