Buffered Vitamin C Powder
£19.13 for 84 servings at Healf. It carries more than one active ingredient, so it is not ranked against single-ingredient products. Each price below counts one ingredient only.
At one 1 g dose a day, this pack lasts 11 months. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
Vitamin C
- In the pack: 84 × 4 g = 336 g
- £19.13 ÷ 336 g × 1 g = 5.69p per 1 g
- A week 5.69p × 7 = 40p · a month × 30 = £1.71 · a year × 365 = £20.78
- Amount per serving: stated on the label.
Calcium
- In the pack: 84 × 145 mg = 12.2 g
- £19.13 ÷ 12.2 g × 500 mg = 78.5p per 500 mg calcium
- A week 78.5p × 7 = £5.50 · a month × 30 = £23.56 · a year × 365 = £286.64
- Amount per serving: stated on the label.
Magnesium
- In the pack: 84 × 55 mg = 4.62 g
- £19.13 ÷ 4.62 g × 100 mg = 41.4p per 100 mg magnesium
- A week 41.4p × 7 = £2.90 · a month × 30 = £12.42 · a year × 365 = £151.14
- Amount per serving: stated on the label.
Potassium
- In the pack: 84 × 365 mg = 30.7 g
- £19.13 ÷ 30.7 g × 200 mg = 12.5p per 200 mg potassium
- A week 12.5p × 7 = 87p · a month × 30 = £3.74 · a year × 365 = £45.55
- Amount per serving: stated on the label.
Zinc
- In the pack: 84 × 2 mg = 168 mg
- £19.13 ÷ 168 mg × 15 mg = £1.71 per 15 mg zinc
- A week £1.71 × 7 = £11.96 · a month × 30 = £51.24 · a year × 365 = £623.43
- Amount per serving: stated on the label.
The standard dose is a comparison unit, not a recommendation. Always confirm the price on the retailer's site. How we compare everything.
How it compares: vitamin C
All 113, ranked →
Ranked purely by price per 1 g. 950 combination products also contain vitamin C.
How it compares: calcium carbonate
All 5, ranked →
Ranked purely by price per 500 mg calcium. 86 combination products also contain calcium.
How it compares: magnesium blends and other forms
All 79, ranked →
Ranked purely by price per 100 mg magnesium. 236 combination products also contain magnesium.
How it compares: other forms of potassium
Compare every product in this form →
Ranked purely by price per 200 mg potassium. 58 combination products also contain potassium.
How it compares: zinc gluconate
All 7, ranked →
Ranked purely by price per 15 mg zinc. 33 combination products also contain zinc.
On the label
- Vitamin C · Standard (ascorbic acid and ascorbates)
- 4 g per serving (stated on the label)
- Calcium · Carbonate
- 145 mg per serving (stated on the label)
- Pack
- 84 servings · 5.4 g a serving
- Cost per serving
- 23p (84 servings in the pack)
More label details
- Magnesium · Blends and other forms
- 55 mg per serving (stated on the label)
- Potassium · Other forms
- 365 mg per serving (stated on the label)
- Zinc · Gluconate
- 2 mg per serving (stated on the label)
- Sold by
- Healf
- What the listing says
- “Servings Per Container: about 84” · “1 rounded teaspoon (5.4g)” · “Calcium (as Calcium Carbonate) ; 145 mg”
Ingredients
Vitamin C (as Ascorbic Acid), Potassium (as Potassium Carbonate), Calcium (as Calcium Carbonate), Magnesium (as Magnesium Carbonate), Zinc (as Zinc Gluconate)
From the Healf listing. Check the pack itself if you have an allergy: labels mark allergens in bold.
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One 1 g dose is our comparison unit, not a recommendation.
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Filled in from the label’s serving: 5.4 g.
What you paid
Optional. At Healf today: £19.13.
“Order by” allows 3 working days’ delivery from Healf and your spare days.
Price history
No price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.
- Price at every check
- £19.13Healf
- First recorded
- £19.131 Oct
- Checked on
- 20 dayssince 1 Oct
- First checked at Healf: £19.13
Questions about this product
How much does Life Extension Buffered Vitamin C Powder cost per 500 mg calcium?
79p per 500 mg calcium, from £19.13 for 84 servings at Healf, checked on 20 October 2026.
How long does one pack last?
24 days at one 500 mg dose. The pack holds 12.2 g in total.
How much does Life Extension Buffered Vitamin C Powder cost per 100 mg magnesium?
41p per 100 mg magnesium, from £19.13 for 84 servings at Healf, checked on 20 October 2026.
How long does one pack last?
46 days at one 100 mg dose. The pack holds 4.62 g in total.
How much does Life Extension Buffered Vitamin C Powder cost per 200 mg potassium?
12p per 200 mg potassium, from £19.13 for 84 servings at Healf, checked on 20 October 2026.
How long does one pack last?
5 months at one 200 mg dose. The pack holds 30.7 g in total.
How much does Life Extension Buffered Vitamin C Powder cost per 1 g?
6p per 1 g, from £19.13 for 84 servings at Healf, checked on 20 October 2026.
How long does one pack last?
11 months at one 1 g dose. The pack holds 336 g in total.
How much does Life Extension Buffered Vitamin C Powder cost per 15 mg zinc?
£1.71 per 15 mg zinc, from £19.13 for 84 servings at Healf, checked on 20 October 2026.
How long does one pack last?
11 days at one 15 mg dose. The pack holds 168 mg in total.
About Life Extension
All 19 Life Extension products, priced per dose
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