Magnesium Ascorbate Capsules

Vitamin C in a buffered form, with magnesium.

  • Supports a healthy immune system
  • Helps reduce tiredness and fatigue
  • Gentle on the stomach
90 capsules
90 day supply

£0.32 per day £0.32 per capsule

Guaranteed additive free
Highest purity
Practitioner grade
Free Standard UK delivery over £50.00 30 day returns

In stock. Orders before 2pm Mon-Fri are dispatched same day.

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Magnesium ascorbate is vitamin C bound to magnesium. It is a buffered form, so it is less acidic than plain ascorbic acid.

Vitamin C supports the immune system, the formation of collagen and the absorption of iron, and it contributes to the reduction of tiredness and fatigue. Magnesium adds support for muscles and energy release.

Each capsule provides a high dose of vitamin C with magnesium and nothing else apart from the vegetable shell. It is often chosen by people who find plain vitamin C hard on the stomach.

Each capsule contains:%NRV*
Vitamin C485 mg606%
Magnesium36 mg10%

† Nutrient Reference Value (NRV*) not established

Magnesium Ascorbate, Hydroxypropyl Methylcellulose (capsule).

Also listed as buffered vitamin C, non-acidic vitamin C, magnesium salt of ascorbic acid.

Take 1 capsule 1 to 3 times per day with meals.

One capsule daily provides strong maintenance coverage. For immune support during illness or periods of high demand, 2 to 3 capsules daily (970 to 1455mg vitamin C) provides a therapeutic dose. The buffered form allows these higher doses to be tolerated without the digestive discomfort that equivalent doses of pure ascorbic acid can cause.

Spreading doses throughout the day is more effective than a single large dose, as vitamin C absorption decreases at higher single doses. Taking one capsule with each meal provides steady levels throughout the day. If taking alongside iron supplements, the vitamin C enhances iron absorption, making them an effective pairing.

  • Suitable for men.

  • Suitable for women.

  • Consult your healthcare practitioner before use if pregnant or breastfeeding.

  • Suitable for vegetarians.

  • Suitable for vegans.

  • No gluten containing ingredients.

  • No nut containing ingredients.

  • No dairy containing ingredients.

If you are taking prescribed medicines or under medical supervision, consult your healthcare practitioner before use.

Store in a cool dry place.

Keep out of reach of children.

This information is not a substitute for advice from a healthcare practitioner.

This product should not be used as a substitute for a varied diet.

Once opened, consume within 3 months.

This product is in stock. Orders placed before 2pm Mon-Fri are dispatched the same day.

UK Standard Delivery (Royal Mail Tracked 48, 2 to 4 working days) is £3.95, or free on orders of £50 or more. Express Delivery (Tracked 24, 1 to 2 working days) is £5.65, free on orders of £80 or more. Next Day Delivery (Royal Mail Special Delivery) is £8.50, free on orders of £120 or more; order before 2pm on a working day for next-working-day arrival. We dispatch Monday to Friday.

Delivery and worldwide shipping options are shown at checkout, with duties and taxes included.

Unopened items in their original packaging can be returned within 30 days of delivery.

Magnesium Ascorbate Capsules
Quality manufacturing

Quality promise

Why clinical grade matters

  • GMP certified, pharmaceutical grade manufacturing
  • Made in UK cleanroom facilities, ISO 9001 & ISO 14001 accredited
  • No fillers, binders or additives, only active ingredients
  • Fully traceable from raw material to finished product
  • Non-GM, non-irradiated, 100% green energy manufacturing

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What the research shows

Our Health Reference Library is an ever-growing collection of peer-reviewed research and health guidance.

Research and routine
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Frequently asked questions

What is Magnesium Ascorbate good for?

Magnesium ascorbate is a buffered form of vitamin C, providing 485mg vitamin C plus 36mg magnesium per capsule. The magnesium buffers the acid, making it gentle on the stomach.

When should I take Magnesium Ascorbate?

Take with meals, spread across the day, as vitamin C absorbs better in smaller doses. It pairs well with iron to support absorption.

What are signs I might need magnesium?

Common signs include muscle cramps, poor sleep, low energy, and tension. A blood test can confirm your level.

Can I take magnesium with other supplements?

Magnesium pairs well with vitamin D, zinc and B vitamins. Space it from calcium by around 2 hours for absorption.

How long until I notice results?

Many people notice a difference within 1 to 2 weeks, with fuller benefits over 4 to 8 weeks of consistent use.

How does magnesium ascorbate compare with plain ascorbic acid and other buffered vitamin C?

Magnesium ascorbate is vitamin C bound to magnesium, which makes it buffered, so it is less acidic in the stomach than plain ascorbic acid. Other buffered forms use calcium or sodium instead; the vitamin C is the same in each, the difference is which mineral comes with it. Ascorbic acid powder is the cheapest way to take a high dose and suits people who tolerate acid well. Magnesium ascorbate suits people who find plain vitamin C harsh on the stomach and want a little magnesium alongside.

Why capsules rather than tablets?

Tablets need binders, fillers and a coating to hold their shape. A capsule is a cellulose shell around the powder, so it carries no binders and breaks down quickly once swallowed.

Magnesium Ascorbate Capsules

Magnesium Ascorbate Capsules

£28.80