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Vitamin C 1,000mg (Ascorbic Acid) — front

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Vitamin C 1,000mg (Ascorbic Acid)

Thorne · 1,000 mg/day (1 capsule)

MSRP $19
1 capsule · daily, with food

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✛ Why it's used

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 product, it must be consumed in the daily diet or by supplementation.

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

Benefits of Ascorbic Acid (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 professional.

Supplement facts

Serving size 1 CapsuleServings per container 60
Amount per serving
Vitamin C (as Ascorbic Acid)1 g

Other ingredients: Calcium Laurate, Cellulose, Hypromellose Capsule)

Dietary considerations · Gluten free · Dairy free · Soy free · Milk free

Listed under Vitamins & Minerals > Single Vitamins > Vitamin C

⚠ Key cautions

Cautions: can cause diarrhea/GI upset in some individuals at gram-level doses, resolves when dosage is reduced; standard (non-liposomal) ascorbic acid form is acidic and best taken with food. Prescription interactions: no well-established interactions at publication date; high-dose vitamin C may interfere with some lab tests (glucose monitors, occult blood tests) — inform prescriber before major lab work; caution in individuals with kidney disease or history of oxalate kidney stones (vitamin C metabolizes partly to oxalate). Priority: Low risk within the UL; kidney-stone-history and renal-impairment review recommended at gram-level doses.