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 › Sports & performance › Electrolytes

Rheal SuperfoodsSports & performance

Daily Hydration, Citrus, 28 sachets

£30.00 for 28 sachets at Healf. That works out at £1.07 per serving, which ranks it 110th of the 260 electrolytes we price across 9 UK retailers.

What it really costs, per serving£1.07One serving is our comparison unit for electrolytes. It is not a recommendation.
A day£1.07
A week£7.50
A month£32.14
A year£391.07

At one serving a day, this pack lasts 28 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Electrolytes

  • Servings: 28 ÷ 1 per serving = 28
  • In the pack: 28 × 1 serving = 28 servings
  • £30.00 ÷ 28 servings × 1 serving = £1.07 per serving
  • A week £1.07 × 7 = £7.50 · a month × 30 = £32.14 · a year × 365 = £391.07
  • Amount per serving: priced per serving — compare what each serving contains before choosing.

Calcium

  • Servings: 28 ÷ 1 per serving = 28
  • In the pack: 28 × 120 mg = 3.36 g
  • £30.00 ÷ 3.36 g × 500 mg = £4.46 per 500 mg calcium
  • A week £4.46 × 7 = £31.25 · a month × 30 = £133.93 · a year × 365 = £1629.46
  • Amount per serving: stated on the label.

Magnesium

  • Servings: 28 ÷ 1 per serving = 28
  • In the pack: 28 × 75 mg = 2.1 g
  • £30.00 ÷ 2.1 g × 100 mg = £1.43 per 100 mg magnesium
  • A week £1.43 × 7 = £10.00 · a month × 30 = £42.86 · a year × 365 = £521.43
  • Amount per serving: stated on the label.

Potassium

  • Servings: 28 ÷ 1 per serving = 28
  • In the pack: 28 × 300 mg = 8.4 g
  • £30.00 ÷ 8.4 g × 200 mg = 71.4p per 200 mg potassium
  • A week 71.4p × 7 = £5.00 · a month × 30 = £21.43 · a year × 365 = £260.71
  • Amount per serving: stated on the label.

Vitamin C

  • Servings: 28 ÷ 1 per serving = 28
  • In the pack: 28 × 80 mg = 2.24 g
  • £30.00 ÷ 2.24 g × 1 g = £13.39 per 1 g
  • A week £13.39 × 7 = £93.75 · a month × 30 = £401.79 · a year × 365 = £4888.39
  • 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 →
Daily ElectrolytesHealf · 1 serving a serving · £31.99 a month · a pack lasts 30 days£1.07£31.99View at Healf (opens in a new tab)
Hydration+ Exercise and RecoverHealf · 1 serving a serving · £31.99 a month · a pack lasts 30 days£1.07£31.99View at Healf (opens in a new tab)
Daily ElectrolytesHealf · 1 serving a serving · £31.99 a month · a pack lasts 30 days£1.07£31.99View at Healf (opens in a new tab)
True HydrationW-Wellness · 1 serving a serving · £32.00 a month · a pack lasts 30 days£1.07£32.00View at W-Wellness (opens in a new tab)
Daily HydrationHealf · 1 serving a serving · £32.14 a month · a pack lasts 28 days£1.07£30.00View at Healf (opens in a new tab)
This productHealf · 1 serving a serving · £32.14 a month · a pack lasts 28 days£1.07shown above

Switching to the Healf pack saves 15p a month at one serving a day.

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

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 · 120 mg a serving · £133.93 a month · a pack lasts 7 days£4.46shown above

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

How it compares: magnesium citrate

All 38, ranked →
Magnesium Citrate Tablets 700mgCheapest per 100 mg magnesiumSimply Supplements · 700 mg a serving · 50p a month · a pack lasts 2.3 years2p£13.99View at Simply Supplements (opens in a new tab)
Natures AidMagnesium Citrate 750mg 60 CapsulesLloyds Pharmacy · 750 mg a serving · 76p a month · a pack lasts 1.2 years3p£11.45View at Lloyds Pharmacy (opens in a new tab)
Magnesium CitrateHealf · 400 mg a serving · £1.54 a month · a pack lasts 11 months5p£16.45View at Healf (opens in a new tab)
This productHealf · 75 mg a serving · £42.86 a month · a pack lasts 21 days£1.43shown above

Ranked purely by price per 100 mg magnesium. 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. 187 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 · 300 mg a serving · £21.43 a month · a pack lasts 42 days71pshown 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.

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 · 80 mg a serving · £401.79 a month · a pack lasts 2 days£13.39shown 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)
Calcium · Other forms
120 mg per serving (stated on the label)
Pack
28 sachets · 28 servings · 1 sachet(s) a serving
Cost per serving
£1.07 (28 servings in the pack)
More label details
Magnesium · Citrate
75 mg per serving (stated on the label)
Potassium · Citrate
300 mg per serving (stated on the label)
Vitamin C · Standard (ascorbic acid and ascorbates)
80 mg per serving (stated on the label)
Sold by
Healf
What the listing says
“28 pack” · “Front of pack: 28 servings” · “Mix one sachet” · “Calcium (mg) ; 120”
Ingredients

Himalayan Pink Salt (Sodium Chloride), Aquamin® Soluble (Calcium Citrate Malate), Acidity Regulator (Citric Acid), Aquamin® Mg Soluble (Magnesium Citrate), Potassium Citrate, Coconut Water Powder, Natural Lemon and Lime Flavouring, Sweetener (Steviol Glycosides from Stevia), Vitamin C (Sodium Ascorbate), Vitamin K2 (Menaquinone), Vitamin D3 (Cholecalciferol).

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 serving is our comparison unit, not a recommendation.

Price history

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

Lowest recorded
£22.507 Oct
Highest recorded
£30.0019 Oct
First recorded
£30.001 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. Up at Healf: £26.00 → £30.00 (+15%)
  2. Down at Healf: £30.00 → £26.00 (−13%)
  3. Up at Healf: £22.50 → £30.00 (+33%)
2 earlier entries
  1. Down at Healf: £30.00 → £22.50 (−25%)
  2. First checked at Healf: £30.00

Questions about this product

How much does Rheal Superfoods Daily Hydration cost per 500 mg calcium?

£4.46 per 500 mg calcium, from £30.00 for 28 sachets at Healf, checked on 20 October 2026.

How long does one pack last?

7 days at one 500 mg dose. The pack holds 3.36 g in total.

How much does Rheal Superfoods Daily Hydration cost per serving?

£1.07 per serving, from £30.00 for 28 sachets at Healf, checked on 20 October 2026.

Is it the cheapest of the electrolytes in the UK?

No, it is 110th of 260. Electrolyte Powder at Bulk works out at 6p per serving.

How long does one pack last?

28 days at one serving. The pack holds 28 servings in total.

How much does Rheal Superfoods Daily Hydration cost per 100 mg magnesium?

£1.43 per 100 mg magnesium, from £30.00 for 28 sachets at Healf, checked on 20 October 2026.

How long does one pack last?

21 days at one 100 mg dose. The pack holds 2.1 g in total.

How much does Rheal Superfoods Daily Hydration cost per 200 mg potassium?

71p per 200 mg potassium, from £30.00 for 28 sachets at Healf, checked on 20 October 2026.

How long does one pack last?

42 days at one 200 mg dose. The pack holds 8.4 g in total.

How much does Rheal Superfoods Daily Hydration cost per 1 g?

£13.39 per 1 g, from £30.00 for 28 sachets at Healf, checked on 20 October 2026.

How long does one pack last?

2 days at one 1 g dose. The pack holds 2.24 g in total.

Keep comparing

All electrolytesEvery form, cheapest per serving firstElectrolytes guideWhat it is, why people take it, how the forms differSports & performanceEverything else we price in this categoryElectrolytes price historyEvery electrolytes 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