Vitamin C 1,000 mg

Thorne Vitamin C 1,000 mg delivers the highest-dose encapsulated vitamin C in Thorne's lineup, formulated to support daily immune function, collagen formation, and antioxidant defense. Because the body cannot produce vitamin C on its own, consistent supplementation helps fill the gap that diet alone may leave.

Although you might rely on vitamin C only during the winter months, this vitamin can support your overall health every day. Vitamin C has many roles in your body and is linked to impressive health benefits, including immune function, collagen formation, and supporting liver detoxification.*

Because vitamin C is an essential vitamin that the body can’t produce, it must be consumed in the daily diet or by supplementation.

Thorne’s Vitamin C is the highest dose of vitamin C you can get in any of Thorne’s encapsulated vitamin C products.

Benefits of Thorne's Vitamin C

• Promotes optimal immune function*
• Important in collagen production, which enhances skin, nail, and hair health*
• Supports healthy tissue and cartilage formation*
• Plays a role in phase I liver detoxification, plus its antioxidant properties help protect against the toxic effects of heavy metals*
• Helps increase glutathione, a potent antioxidant necessary for supporting phase II liver detoxification*
• The benefits of collagen production, its antioxidant status, and immune support make vitamin C essential for tissue formation*

This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants, such as heavy metals, pesticides, and microorganisms.

Suggested Use:

Take 1 capsule daily or as recommended by your health-care practitioner.

Warnings:

ALLERGY WARNING

This product is contraindicated in a individual with a history of hypersensitivity to any of its ingredients.

PREGNANCY

If pregnant, consult your health-care practitioner before using this product.

INTERACTIONS

There are no known interactions or contraindications at publication date.

OTHER WARNINGS

Vitamin C can cause diarrhea in some individuals in large doses, which can vary from person to person. This resolves when the dosage is reduced.

Ways to Work Thorne Vitamin C 1,000 mg Into Your Routine

• Year-round immune support: Rather than reaching for vitamin C only seasonally, daily use helps maintain consistent immune system function as part of a balanced wellness routine.
• Skin, hair, and nail health: Vitamin C plays a key role in collagen production, making it a thoughtful addition for those focused on maintaining healthy skin, nails, and hair from within.
• Antioxidant and liver support: The formula's antioxidant properties contribute to phase I and phase II liver detoxification pathways and support the body's production of glutathione.
• Tissue and cartilage maintenance: Vitamin C supports healthy tissue and cartilage formation, lending itself well to active lifestyles that place regular demands on the body.

Frequently Asked Questions

What makes Thorne Vitamin C 1,000 mg different from other vitamin C supplements?

This is the highest-dose encapsulated vitamin C option in Thorne's lineup. The product has also been third-party tested and certified to confirm that what is listed on the label matches what is inside the capsule.

Is Thorne Vitamin C 1,000 mg suitable for daily use, not just during cold and flu season?

Yes — because the body cannot synthesize vitamin C on its own, daily supplementation supports consistent intake year-round. The formula is designed to complement an everyday wellness routine rather than serve as a seasonal measure only.

How does vitamin C support collagen production?

Vitamin C is essential to the body's collagen synthesis process, which in turn supports the health of skin, nails, hair, and connective tissue such as cartilage. Including a consistent source of vitamin C is a common strategy among those prioritizing structural and skin health.