We earn commission on purchases made through our links. It never affects ranking: tables are ordered purely by price per dose, and no retailer or brand can pay for position.We earn commission when you buy through our links. It never affects the ranking. Full disclosure.

perdose
Updated

Home › Vitamins › Vitamin C

Pure EncapsulationsVitamins

Buffered Ascorbic Acid (Vitamin C) Powder, 227 g

£19.49 for 227 g 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.

What it really costs, per 1 g15pOne 1 g dose is our comparison unit for vitamin C. It is not a recommendation.
A day15p
A week£1.08
A month£4.64
A year£56.51

At one 1 g dose a day, this pack lasts 4 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Vitamin C

  • Servings: 227 ÷ 2.2 per serving = 103.2
  • In the pack: 103.2 × 1.22 g = 125.9 g
  • £19.49 ÷ 125.9 g × 1 g = 15.5p per 1 g
  • A week 15.5p × 7 = £1.08 · a month × 30 = £4.64 · a year × 365 = £56.51
  • Amount per serving: stated on the label.

Calcium

  • Servings: 227 ÷ 2.2 per serving = 103.2
  • In the pack: 103.2 × 100 mg = 10.3 g
  • £19.49 ÷ 10.3 g × 500 mg = 94.4p per 500 mg calcium
  • A week 94.4p × 7 = £6.61 · a month × 30 = £28.33 · a year × 365 = £344.72
  • Amount per serving: stated on the label.

Magnesium

  • Servings: 227 ÷ 2.2 per serving = 103.2
  • In the pack: 103.2 × 60 mg = 6.19 g
  • £19.49 ÷ 6.19 g × 100 mg = 31.5p per 100 mg magnesium
  • A week 31.5p × 7 = £2.20 · a month × 30 = £9.44 · a year × 365 = £114.91
  • Amount per serving: stated on the label.

Potassium

  • Servings: 227 ÷ 2.2 per serving = 103.2
  • In the pack: 103.2 × 20 mg = 2.06 g
  • £19.49 ÷ 2.06 g × 200 mg = £1.89 per 200 mg potassium
  • A week £1.89 × 7 = £13.22 · a month × 30 = £56.67 · a year × 365 = £689.45
  • 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 →
Vitamin C Plus TabletsCheapest per 1 gMyprotein · 1 g a serving · £1.00 a month · a pack lasts 6 months3p£5.99View at Myprotein (opens in a new tab)
Vitamin C Crystals PowderHealf · 1.1 g a serving · £1.01 a month · a pack lasts 7 months3p£7.61View at Healf (opens in a new tab)
Vitamin C PowderLamberts Healthcare (Nature's Best) · 1 g a serving · £1.50 a month · a pack lasts 8 months5p£12.50View at Lamberts Healthcare (opens in a new tab)
This productHealf · 1.22 g a serving · £4.64 a month · a pack lasts 4 months15pshown above

Ranked purely by price per 1 g. 950 combination products also contain vitamin C.

How it compares: other forms of calcium

All 25, ranked →
Calcium 1000mg & Vitamin D3 400iu TabletsCheapest per 500 mg calciumSimply Supplements · 1 g a serving · 94p a month · a pack lasts 12 months3p£11.29View at Simply Supplements (opens in a new tab)
Calcium & Magnesium TabletsMyprotein · 800 mg a serving · £2.29 a month · a pack lasts 5 months8p£10.99View at Myprotein (opens in a new tab)
ZipVitCalcium 400mg with Magnesium 200mgZipVit · 400 mg a serving · £2.29 a month · a pack lasts 9 months8p£21.99View at ZipVit (opens in a new tab)
This productHealf · 100 mg a serving · £28.33 a month · a pack lasts 21 days94pshown above

Ranked purely by price per 500 mg calcium. 216 combination products also contain calcium.

How it compares: magnesium blends and other forms

All 79, ranked →
ZipVitMagnesium 500mgCheapest per 100 mg magnesiumZipVit · 500 mg a serving · 33p a month · a pack lasts 4.9 years1p£19.99View at ZipVit (opens in a new tab)
Magnesium Glycinate X3Protein Works · 1.81 g a serving · 40p a month · a pack lasts 2.2 years1p£10.99View at Protein Works (opens in a new tab)
Magnesium CapsHealf · 500 mg a serving · 41p a month · a pack lasts 1.4 years1p£6.75View at Healf (opens in a new tab)
This productHealf · 60 mg a serving · £9.44 a month · a pack lasts 2 months31pshown above

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 →
Ionic Potassium Liquid ConcentrateCheapest per 200 mg potassiumHealf · 300 mg a serving · £15.60 a month · a pack lasts 38 days52p£19.50View at Healf (opens in a new tab)
Ionic Potassium Liquid ConcentrateMyprotein · 300 mg a serving · £16.00 a month · a pack lasts 38 days53p£20.00View at Myprotein (opens in a new tab)
This productHealf · 20 mg a serving · £56.67 a month · a pack lasts 10 days£1.89shown above

Ranked purely by price per 200 mg potassium. 58 combination products also contain potassium.

On the label

Vitamin C · Standard (ascorbic acid and ascorbates)
1.22 g per serving (stated on the label)
Calcium · Other forms
100 mg per serving (stated on the label)
Pack
227 g · 103.2 servings · 2.2 g a serving
Cost per serving
19p (103.2 servings in the pack)
More label details
Magnesium · Blends and other forms
60 mg per serving (stated on the label)
Potassium · Other forms
20 mg per serving (stated on the label)
Sold by
Healf
What the listing says
“227g” · “Servings Per Container: approximately 103” · “Serving Size: 1 rounded scoop (2.2g)” · “Calcium (from Calcium Ascorbate) ; 100 mg”
Ingredients

Vitamin C (from Calcium Ascorbate, Magnesium Ascorbate, And Potassium Ascorbate), Calcium (from Calcium Ascorbate), Magnesium (from Magnesium Ascorbate), Potassium (from Potassium Ascorbate)

From the Healf listing. Check the pack itself if you have an allergy: labels mark allergens in bold.

Is something wrong? Tell us

Add to your basket

View basket

Your basket prices everything you take together: whole packs, delivery included, from as few websites as you like.

One 1 g dose is our comparison unit, not a recommendation.

Price history

1 price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.

Lowest recorded
£18.491 Oct
Highest recorded
£19.4910 Oct
First recorded
£18.491 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. Up at Healf: £18.49 → £19.49 (+5.4%)
  2. First checked at Healf: £18.49

Questions about this product

How much does Pure Encapsulations Buffered Ascorbic Acid (Vitamin C) Powder cost per 500 mg calcium?

94p per 500 mg calcium, from £19.49 for 227 g at Healf, checked on 20 October 2026.

How long does one pack last?

21 days at one 500 mg dose. The pack holds 10.3 g in total.

How much does Pure Encapsulations Buffered Ascorbic Acid (Vitamin C) Powder cost per 100 mg magnesium?

31p per 100 mg magnesium, from £19.49 for 227 g at Healf, checked on 20 October 2026.

How long does one pack last?

2 months at one 100 mg dose. The pack holds 6.19 g in total.

How much does Pure Encapsulations Buffered Ascorbic Acid (Vitamin C) Powder cost per 200 mg potassium?

£1.89 per 200 mg potassium, from £19.49 for 227 g at Healf, checked on 20 October 2026.

How long does one pack last?

10 days at one 200 mg dose. The pack holds 2.06 g in total.

How much does Pure Encapsulations Buffered Ascorbic Acid (Vitamin C) Powder cost per 1 g?

15p per 1 g, from £19.49 for 227 g at Healf, checked on 20 October 2026.

How long does one pack last?

4 months at one 1 g dose. The pack holds 125.9 g in total.

About Pure Encapsulations

All 135 Pure Encapsulations products, priced per dose

More from Pure Encapsulations

Keep comparing

All vitamin CEvery form, cheapest per 1 g firstVitamin C Standard (ascorbic acid and ascorbates)113 products rankedVitamin C guideWhat it is, why people take it, how the forms differPure EncapsulationsAll 135 products from this brand, per doseVitaminsEverything else we price in this categoryVitamin C price historyEvery vitamin C product's price per dose and price historyBuild a basketThe cheapest way to buy several at onceHow we compareWhere every number on this page comes from