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What are the cheapest electrolytes in the UK?

Myprotein Impact Hydrate Electrolyte Powder – Citrus Matcha, £0.22 per serving with code KROTON. Today's lowest price for electrolytes across the shops we track, £0.32 per serving less than number two.

Myprotein Impact Hydrate Electrolyte Powder – Citrus Matcha
Cheapest per serving £0.22 per serving, with code KROTON Myprotein Impact Hydrate Electrolyte Powder – Citrus Matcha 40 servings for £8.99
Buy at Myprotein £8.99

Measured 22 October · 62 electrolyte products at 4 shops · updated every day

How we calculate

  • Price per serving. A small pack looks cheap. Per serving shows what you really pay.
  • Discount included. The price is what you pay at checkout, with our code already applied.

The lowest price per serving is at the top. That spot is not for sale. If you order through us, the shop pays us a commission. That doesn't change the order.

Which electrolytes are the cheapest per serving right now?

price per serving, discount included
  1. 1 Myprotein Impact Hydrate Electrolyte Powder – Citrus Matcha 40 servings for £8.99 with code KROTON −64% £0.22 per serving To the shop
  2. 2 Bulk Electrolyte Plus 60 servings for £32.49 £0.54 per serving To the shop
  3. 3 Applied Nutrition Coleen’s Hydration Powder Citrus 14 servings for £14.99 £1.07 per serving To the shop
  4. 4 Optimum Nutrition Electrolyte Powder Forest Berries 264 g for £10.00 £3.79 per serving To the shop
Compare all drinks →

What should you look for?

  • Work it out per serving. One tablet or sachet is one serving; with powder, the scoop sets the serving.
  • Check the sodium per serving. It is on the label and differs a lot between products.
  • Compare like with like. Drinks with carbohydrates or caffeine and ready-to-drink cans are not in this list.

Questions

What are the cheapest electrolytes in the UK?
The lowest price for electrolytes across the shops we track is today Myprotein Impact Hydrate Electrolyte Powder – Citrus Matcha: £0.22 per serving (£8.99 per pack of 40 servings with code KROTON). Measured on 22 October across 62 electrolyte products at 4 shops; tablets, sachets and powders. The list above is live: the order changes with the discounts. Then compare the sodium per serving on the label.
What does a serving of electrolytes cost at each shop?
# Product Price Price per serving Rating Last measured
1 Myprotein Impact Hydrate Electrolyte Powder – Citrus Matcha · 27 flavours £9.99 (-60%) · 40 servings £0.22 / serving 4,0/5 (35)
2 Bulk Electrolyte Plus · 4 flavours £32.49 · 60 servings £0.54 / serving —
3 Applied Nutrition Coleen’s Hydration Powder Citrus · 28 flavours £14.99 (-25%) · 14 servings £1.07 / serving £35.69 / kg —
4 Optimum Nutrition Electrolyte Powder Forest Berries · 3 flavours £10.00 · 264 g £3.79 / 100 g 4,6/5 (83)

Prices checked on 22 October 2026 — discounts are already included in the price per unit.

Tablets, sachets or powder: which is cheapest per serving?
That changes with the discounts, so check the list above. A tub of powder is often cheaper per serving than the same powder in sachets, because with sachets you also pay for the packaging.
How do you buy electrolytes at the lowest price?
Take a bigger tub or tube and keep an eye on the brands’ offers. The prices above already include the current discount, so you see straight away what you really pay.
What if the label gives no serving size?
Then we work out the price per 100 grams for that tub. It comes after the products with a price per serving in the list.
Is an isotonic sports drink the same?
No. An isotonic sports drink is mainly carbohydrates with some sodium; electrolyte products are mainly sodium, with few or no carbohydrates. That is why sports drinks are not in this list.
Full explanation

The list below is live and sorted by price per serving, with discounts already included. One tablet or sachet is one serving; with powder, the scoop sets the serving. Electrolyte products are tablets, sachets and powders with mainly sodium, often with potassium and magnesium, that you mix with water. Drinks with carbohydrates or caffeine and ready-to-drink cans are left out, so you compare like with like. Then check the sodium per serving on the label: that figure differs a lot from product to product.

Tablet, sachet or powder: what are you paying for?

FormWhat you need to knowWho it is for
Effervescent tabletOne tablet dissolves in a bottle of water and counts as one serving.If you want a fixed serving that is easy to carry.
Sachet (stick pack)A measured serving of powder, handy on the go. You also pay for the packaging.If you want a fixed serving without a scoop.
Tub of powderYou measure it yourself with a scoop. If the label gives no serving size, we work it out per 100 grams.If you mix at home or at the gym and use a lot.

Independently compared

Myprotein · 40 servings £8.99
To the shop