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VITAMIN C · 1000 MG

Vitamin C,

at daily strength.

1,000 mg of vitamin C per tablet — the cofactor behind collagen synthesis, immune response, and antioxidant recycling. Clean clinical dosing in a form practitioners can build a protocol around.

Shop Vitamin C 1000 View Formula →

Purchases are completed at Neurobiologix, the seller. Gene Direct Nutrition may earn a commission.

PROFESSIONAL GRADE · 100 TABLETS · VITAMIN C · 1,000 MG

Vitamin C 1000 bottle
DOSE
1,000 mg per tablet

Above RDA, on purpose.

The RDA covers scurvy prevention. Clinical antioxidant and collagen-support work needs more. 1,000 mg per tablet hits the plateau range for tissue saturation without requiring multiple pills to reach it.

COLLAGEN
4 collagen hydroxylases

The structural cofactor.

Vitamin C is the obligate cofactor for the enzymes that hydroxylate proline and lysine into stable collagen. Without it, the triple helix of skin, gum, and vascular tissue never forms properly.

DAILY DOSE
1 tablet with food

Daily foundation.

One tablet daily with food. For children, the tablet can be ground and mixed into a beverage. Vitamin C is water-soluble — extras clear quickly, so consistency beats occasional megadoses.

MAY BENEFIT

Collagen, immunity,
antioxidant recycling.

01
Collagen synthesis
Vitamin C is the required cofactor for prolyl and lysyl hydroxylases — no vitamin C, no stable collagen.
02
Immune function
Vitamin C concentrates in white blood cells and supports neutrophil function, oxidative burst, and recovery.
03
Skin, gum, and eye tissue
Collagen-dense tissues are the first to show vitamin C status — a direct window into daily intake.
04
Antioxidant recycling
Vitamin C regenerates oxidized vitamin E and glutathione, extending the reach of the whole antioxidant network.
05
Iron absorption
Vitamin C converts dietary ferric iron to the more bioavailable ferrous form, supporting plant-based iron uptake.
06
Neurotransmitter synthesis
Vitamin C is a cofactor for dopamine-beta-hydroxylase — the enzyme that turns dopamine into norepinephrine.

Formula

One vitamin. Clinical dose. Broad foundation.

KEY INGREDIENTS

Polyethylene Glycol
Silicified Microcrystalline Cellulose
Vitamin C
As L-Ascorbic Acid

OTHER INGREDIENTS

Croscarmellose Sodium, Hydroxypropyl Cellulose, Hypromellose, Magnesium Stearate, Silicon Dioxide, Stearic Acid

DIRECTIONS

Adults: Adults take one tablet daily with food for maximum nutritional support or as directed by a healthcare professional. For children, grind the tablet into a fine powder and mix with a beverage of choice.

MAY BENEFIT:
Allergy
Diet & Nutrition
Immune System
Hair, Skin, & Nails

Questions

Frequently asked.

Why 1,000 mg instead of a lower dose?
90 mg/day prevents scurvy. Tissue saturation — the level at which white blood cells and structural tissues are fully loaded — sits closer to 200–500 mg, with diminishing returns beyond 1,000 mg. This product hits that plateau in a single tablet so you can dose once and be done.
Who should take this?
Adults looking for a foundational antioxidant and collagen-support layer; patients recovering from illness, surgery, or physical stress; smokers and people with chronic inflammatory patterns who have higher vitamin C turnover; and anyone on a practitioner-designed immune or skin-health protocol.
Can children take this?
Yes — the tablet can be ground into a fine powder and mixed with a beverage, which is useful for children. Dose should be scaled to body weight and discussed with a pediatric or integrative practitioner. Many kids do well on a fraction of the adult dose.
Does vitamin C cause kidney stones?
Very high daily doses (3,000+ mg) can modestly raise urinary oxalate in susceptible people. 1,000 mg/day is within the range most practitioners consider safe for general use, but if you have a personal history of calcium oxalate stones, discuss dose with your practitioner.
Can I take it with other antioxidants or iron supplements?
Yes — vitamin C is synergistic with vitamin E, glutathione, and CoQ10, and it enhances non-heme iron absorption. If you take thyroid medication or certain antibiotics, separate the timing by a couple of hours to avoid absorption interference.
Is it safe during pregnancy or while breastfeeding?
Vitamin C at 1,000 mg is above prenatal-standard dosing but still within the tolerable upper intake level for adults. Consult your healthcare practitioner before use during pregnancy or lactation — they may recommend the vitamin C already included in your prenatal.

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