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Redmond LifeSports & performance

Re-Lyte Hydration, Unflavoured, 375 g

£47.45 for 375 g at Healf. That works out at 63p per serving, which ranks it 31st of the 260 electrolytes we price across 9 UK retailers.

What it really costs, per serving63pOne serving is our comparison unit for electrolytes. It is not a recommendation.
A day63p
A week£4.43
A month£18.98
A year£230.92

At one serving a day, this pack lasts 2 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Electrolytes

  • Servings: 375 ÷ 5 per serving = 75
  • In the pack: 75 × 1 serving = 75 servings
  • £47.45 ÷ 75 servings × 1 serving = 63.3p per serving
  • A week 63.3p × 7 = £4.43 · a month × 30 = £18.98 · a year × 365 = £230.92
  • Amount per serving: priced per serving — compare what each serving contains before choosing.

Magnesium

  • Servings: 375 ÷ 5 per serving = 75
  • In the pack: 75 × 60 mg = 4.5 g
  • £47.45 ÷ 4.5 g × 100 mg = £1.05 per 100 mg magnesium
  • A week £1.05 × 7 = £7.38 · a month × 30 = £31.63 · a year × 365 = £384.87
  • Amount per serving: stated on the label.

Potassium

  • Servings: 375 ÷ 5 per serving = 75
  • In the pack: 75 × 500 mg = 37.5 g
  • £47.45 ÷ 37.5 g × 200 mg = 25.3p per 200 mg potassium
  • A week 25.3p × 7 = £1.77 · a month × 30 = £7.59 · a year × 365 = £92.37
  • 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 →
e-lyte - Balanced Electrolyte Concentrate - 4 fl. OzHealf · 1 serving a serving · £16.31 a month · a pack lasts 16 days54p£8.70View at Healf (opens in a new tab)
Re-Lyte HydrationHealf · 1 serving a serving · £16.75 a month · a pack lasts 2 months56p£33.50View at Healf (opens in a new tab)
Mineral BlendHealf · 1 serving a serving · £17.46 a month · a pack lasts 30 days58p£17.46View at Healf (opens in a new tab)
Impact Hydrate | Electrolyte SachetsMyprotein · 1 serving a serving · £18.49 a month · a pack lasts 30 days62p£18.49View at Myprotein (opens in a new tab)
Ionic Electrolytes Liquid ConcentrateHealf · 1 serving a serving · £18.60 a month · a pack lasts 25 days62p£15.50View at Healf (opens in a new tab)
This productHealf · 1 serving a serving · £18.98 a month · a pack lasts 2 months63pshown above

Switching to the Healf pack saves £2.67 a month at one serving a day.

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)
This productHealf · 60 mg a serving · £31.63 a month · a pack lasts 45 days£1.05shown above

Ranked purely by price per 100 mg magnesium. 236 combination products also contain magnesium.

How it compares: potassium citrate

All 6, ranked →
Potassium Citrate 1300mg with Vitamin CCheapest per 200 mg potassiumSimply Supplements · 1.3 g a serving · 27p a month · a pack lasts 3.2 years1p£10.69View at Simply Supplements (opens in a new tab)
WeightWorldPotassium Citrate With Vitamin C TabletsWeightWorld · 801 mg a serving · £1.46 a month · a pack lasts 12 months5p£17.49View at WeightWorld (opens in a new tab)
Potassium CitrateHealf · 99 mg a serving · £2.86 a month · a pack lasts 3 months10p£8.49View at Healf (opens in a new tab)
This productHealf · 500 mg a serving · £7.59 a month · a pack lasts 6 months25pshown above

Ranked purely by price per 200 mg potassium. Labels here do not all state the same thing: this one gives stated on the label, the cheapest gives estimated from the compound weight using our conversion factor. Check both before choosing. 104 combination products also contain potassium.

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
60 mg per serving (stated on the label)
Pack
375 g · 75 servings · 5 g a serving
Cost per serving
63p (75 servings in the pack)
More label details
Potassium · Citrate
500 mg per serving (stated on the label)
Claimed on the listing
sugar-free
Sold by
Healf
What the listing says
“Net Wt. 13.23 oz. (375g)” · “Servings Per Container: 75” · “Serving Size: 1 level scoop (5g)” · “Salt ; 2.5 g”
Ingredients

Ancient Sea Salt (Redmond Real Salt®), Potassium (as Potassium Citrate), Magnesium (as Magnesium Malate, Magnesium Glycinate)

From the Healf 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 1 October 2026. Checked on 20 days, most recently 20 October 2026.

Price at every check
£47.45Healf
First recorded
£47.451 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. First checked at Healf: £47.45

Questions about this product

How much does Redmond Life Re-Lyte Hydration cost per serving?

63p per serving, from £47.45 for 375 g at Healf, checked on 20 October 2026.

Is it the cheapest of the electrolytes in the UK?

No, it is 31st of 260. Electrolyte Powder at Bulk works out at 6p per serving.

How long does one pack last?

2 months at one serving. The pack holds 75 servings in total.

How much does Redmond Life Re-Lyte Hydration cost per 100 mg magnesium?

£1.05 per 100 mg magnesium, from £47.45 for 375 g at Healf, checked on 20 October 2026.

How long does one pack last?

45 days at one 100 mg dose. The pack holds 4.5 g in total.

How much does Redmond Life Re-Lyte Hydration cost per 200 mg potassium?

25p per 200 mg potassium, from £47.45 for 375 g at Healf, checked on 20 October 2026.

How long does one pack last?

6 months at one 200 mg dose. The pack holds 37.5 g in total.

About Redmond Life

All 37 Redmond Life products, priced per dose

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