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THE Electro | Electrolyte Tablets, Berry, 12 tablets

£6.49 for 12 tablets at Myprotein. That works out at 54p per serving, which ranks it 258th of the 260 electrolytes we price across 9 UK retailers.

What it really costs, per serving54pOne serving is our comparison unit for electrolytes. It is not a recommendation.
A day54p
A week£3.79
A month£16.23
A year£197.40

At one serving a day, this pack lasts 12 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Electrolytes

  • Servings: 12 ÷ 1 per serving = 12
  • In the pack: 12 × 1 serving = 12 servings
  • £6.49 ÷ 12 servings × 1 serving = 54.1p per serving
  • A week 54.1p × 7 = £3.79 · a month × 30 = £16.23 · a year × 365 = £197.40
  • Amount per serving: priced per serving — compare what each serving contains before choosing.

Magnesium

  • Servings: 12 ÷ 1 per serving = 12
  • In the pack: 12 × 25 mg = 300 mg
  • £6.49 ÷ 300 mg × 100 mg = £2.16 per 100 mg magnesium
  • A week £2.16 × 7 = £15.14 · a month × 30 = £64.90 · a year × 365 = £789.62
  • Amount per serving: stated on the label.

Potassium

  • Servings: 12 ÷ 1 per serving = 12
  • In the pack: 12 × 100 mg = 1.2 g
  • £6.49 ÷ 1.2 g × 200 mg = £1.08 per 200 mg potassium
  • A week £1.08 × 7 = £7.57 · a month × 30 = £32.45 · a year × 365 = £394.81
  • Amount per serving: stated on the label.

Vitamin B12

  • Servings: 12 ÷ 1 per serving = 12
  • In the pack: 12 × 2.5 µg = 30 µg
  • £6.49 ÷ 30 µg × 1 mg = £216.33 per 1 mg
  • A week £216.33 × 7 = £1514.33 · a month × 30 = £6490.00 · a year × 365 = £78961.67
  • Amount per serving: stated on the label.

Vitamin C

  • Servings: 12 ÷ 1 per serving = 12
  • In the pack: 12 × 80 mg = 960 mg
  • £6.49 ÷ 960 mg × 1 g = £6.76 per 1 g
  • A week £6.76 × 7 = £47.32 · a month × 30 = £202.81 · a year × 365 = £2467.55
  • 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.

Cheaper electrolytes

All 260, ranked →
Fuel - Cherry BerryHealf · 1 serving a serving · £89.97 a month · a pack lasts 10 days£3.00£29.99View at Healf (opens in a new tab)
Fuel - Mango 10 Travel Packs - 10 travel packsHealf · 1 serving a serving · £89.97 a month · a pack lasts 10 days£3.00£29.99View at Healf (opens in a new tab)
Fuel - Passion Orange Guava 10 Travel Packs - 10 travel packsHealf · 1 serving a serving · £89.97 a month · a pack lasts 10 days£3.00£29.99View at Healf (opens in a new tab)
UthfulDaily Performance, Vitality & Longevity BlendHealf · 1 serving a serving · £267.00 a month · a pack lasts 10 days£8.90£89.00View at Healf (opens in a new tab)
Electrolyte TabletsMyprotein · 1 serving a serving · £2.66 a month · a pack lasts 3 months9p£7.99View at Myprotein (opens in a new tab)
MyPROThis productMyprotein · 1 serving a serving · £16.23 a month · a pack lasts 12 days54pshown above

Ranked purely by price per serving. 32 combination products also contain electrolytes.

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)
MyPROThis productMyprotein · 25 mg a serving · £64.90 a month · a pack lasts 3 days£2.16shown 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)
MyPROThis productMyprotein · 100 mg a serving · £32.45 a month · a pack lasts 6 days£1.08shown above

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

How it compares: vitamin B12 form not stated

All 23, ranked →
ZipVitVitamin B12 1100mcgCheapest per 1 mgZipVit · 1.1 mg a serving · 64p a month · a pack lasts 1.1 years2p£8.49View at ZipVit (opens in a new tab)
Wellthy by Boots Daily Nutrition Triple Blend Vitamin B12 1000ug 365 TabletsBoots · 1 mg a serving · 82p a month · a pack lasts 1 year3p£10.00View at Boots (opens in a new tab)
Adenosyl/Hydroxy B12Healf · 2 mg a serving · £3.58 a month · a pack lasts 6 months12p£21.49View at Healf (opens in a new tab)
MyPROThis productMyprotein · 2.5 µg a serving · £6490.00 a month · a pack lasts under a day£216.33shown above

Ranked purely by price per 1 mg. 65 combination products also contain vitamin B12.

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)
MyPROThis productMyprotein · 80 mg a serving · £202.81 a month · a pack lasts under a day£6.76shown above

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

On the label

Electrolytes · Electrolytes (per serving)
1 serving per serving (priced per serving — compare what each serving contains before choosing)
Magnesium · Blends and other forms
25 mg per serving (stated on the label)
Pack
12 tablets · 12 servings · 1 tablet(s) a serving
Cost per serving
54p (12 servings in the pack)
More label details
Potassium · Other forms
100 mg per serving (stated on the label)
Vitamin B12 · Form not stated
2.5 µg per serving (stated on the label)
Vitamin C · Standard (ascorbic acid and ascorbates)
80 mg per serving (stated on the label)
Claimed on the listing
vegan, vegetarian
Barcode
5059883473284
Sold by
Myprotein
What the listing says
“12Tablets” · “Add 1 tablet to 500ml of water”
Ingredients

Acid (Citric Acid), Sodium Bicarbonate, Humectant (Sorbitol), Potassium Bicarbonate, Inulin, Sodium Carbonate, Natural Flavourings, Magnesium Carbonate, Vitamin C, Sweetener (Sucralose), Red Beet Juice Powder, Maltodextrin, Calcium Salts of Orthophosphoric Acid, Vitamin B12.

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

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One serving is our comparison unit, not a recommendation.

Price history

No price change since 3 October 2026. Checked on 1 day, most recently 3 October 2026.

Price at every check
£6.49Myprotein
First recorded
£6.493 Oct
Checked on
1 daysince 3 Oct

Checked once so far, on 3 October 2026.

  1. First checked at Myprotein: £6.49

Questions about this product

How much does MyPRO THE Electro | Electrolyte Tablets cost per serving?

54p per serving, from £6.49 for 12 tablets at Myprotein, checked on 2 October 2026.

Is it the cheapest of the electrolytes in the UK?

No, it is 258th of 260. Electrolyte Powder at Bulk works out at 6p per serving.

How long does one pack last?

12 days at one serving. The pack holds 12 servings in total.

How much does MyPRO THE Electro | Electrolyte Tablets cost per 100 mg magnesium?

£2.16 per 100 mg magnesium, from £6.49 for 12 tablets at Myprotein, checked on 2 October 2026.

How long does one pack last?

3 days at one 100 mg dose. The pack holds 300 mg in total.

How much does MyPRO THE Electro | Electrolyte Tablets cost per 200 mg potassium?

£1.08 per 200 mg potassium, from £6.49 for 12 tablets at Myprotein, checked on 2 October 2026.

How long does one pack last?

6 days at one 200 mg dose. The pack holds 1.2 g in total.

How much does MyPRO THE Electro | Electrolyte Tablets cost per 1 mg?

£216.33 per 1 mg, from £6.49 for 12 tablets at Myprotein, checked on 2 October 2026.

How long does one pack last?

under a day at one 1 mg dose. The pack holds 30 µg in total.

How much does MyPRO THE Electro | Electrolyte Tablets cost per 1 g?

£6.76 per 1 g, from £6.49 for 12 tablets at Myprotein, checked on 2 October 2026.

How long does one pack last?

under a day at one 1 g dose. The pack holds 960 mg in total.

About MyPRO

All 4 MyPRO products, priced per dose

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