★★★★★
Max B.Racing Cyclist
Pre-launch Testing
CEL50 Berry
CEL50 is a modular energy chew delivering 50g of carbohydrate per pack, with each of the five soft chews providing a measured 10g serving. Formulated with added electrolytes — 267mg of sodium per pack — it gives you flexible control over your fuelling: take three chews for 30g, or all five for 50g, dosed to the demands of the session.
Wild Berry is the smooth, rounded profile — made for steady miles, long rides and extended sessions, and formulated to stay appealing hour after hour.
Use CEL50 on its own for measured carbohydrate and salts in one, or as the glucose base of a wider strategy alongside your gels and drinks. Pectin-set, vegan-friendly and gluten-free. From the makers of GEL50 — built for training and racing.
Quantity
One-time purchase:
£49.99
SRP: £2.99
Biggest savings
Subscribe & Save
£39.99£49.99
Subscribe, get 20% off
Carbohydrate, measured.
Five soft chews. CEL50 delivers 50g of carbohydrate per pack, with 267mg of sodium formulated in.
50gCarbs per pack
10gCarbs per chew
5xChews per pack
267mgSodium per pack
Carbohydrate and Electrolytes, Formulated Together
50g of carbohydrate in five 10g chews, with 267mg of sodium per pack. Sodium supports the uptake of both carbohydrate and fluid — so they're formulated together.
A single-source glucose base
Use CEL50 on its own, or pair it with a fructose source — a gel or drink mix — to build a dual-carbohydrate plan, chew by chew.
50g of carbohydrate, in 10g servings
Five measured 10g chews per pack. Take three for 30g or five for 50g — repeatable, countable intake, session after session.
267mg of sodium per pack
Well above the typical energy chew, which carries under 100mg. Carbohydrate and electrolytes in one pack — no separate salt tab. Match intake to your sweat rate.
Sodium supports carbohydrate and fluid absorption
Glucose uptake is sodium-dependent, and water follows both across the gut — the oral rehydration principle. The sodium is integral to the formulation, not a bolt-on.
Don't just take our word for it.
From first-time marathoners to pro teams — real athletes, real results, in their words.
"STYRKR helped to fuel my half marathon PB last year — 12 minutes faster! 10/10."
"Consistent subscriber of the STYRKR electrolytes. The ingredient quantities are better than any other — but they actually taste pleasant."
"Taste really good and keep me fully fuelled even on the longest days on the bike."
"STYRKR is absolutely incredible — couldn't recommend it more!"
"Good tasting, easy to use, and swift delivery."
"Very tasty and very easy on the stomach."
"Really enjoy the GEL50 and MIX90 products."
"Great on the digestive system, unlike other brands I've tried — stocked up ready for racing season."
"Great products and friendly customer service. No fake flavours — high carb in less volume, and great bundle deals."
"STYRKR helped to fuel my half marathon PB last year — 12 minutes faster! 10/10."
"Consistent subscriber of the STYRKR electrolytes. The ingredient quantities are better than any other — but they actually taste pleasant."
"Taste really good and keep me fully fuelled even on the longest days on the bike."
"STYRKR is absolutely incredible — couldn't recommend it more!"
"Good tasting, easy to use, and swift delivery."
"Very tasty and very easy on the stomach."
"Really enjoy the GEL50 and MIX90 products."
"Great on the digestive system, unlike other brands I've tried — stocked up ready for racing season."
"Great products and friendly customer service. No fake flavours — high carb in less volume, and great bundle deals."
Two formats, one fuelling system.
The goal is the same: carbohydrate in, effort sustained. CEL50 adds a format you can meter precisely, chew by chew — developed by the makers of GEL50 and designed to work alongside it, not in place of it.
The Gel Way
- A gel delivers its full serving in a single dose
- One format covers every moment, early and late, high intensity and low
- Packaging is opened during the effort itself
- A single flavour profile carries the whole session
- Fuel and electrolytes carried as separate products
The CEL50 Way
- Five soft chews, each a measured 10g serving
- A second format alongside your gels — control when you want it.
- Open once, then dose chew by chew
- Voted our best tasting product to date
- 267mg of sodium formulated in with the carbs.
How CEL50 stacks up.
The all-in-one carb + electrolyte chew, against the UK's leading energy chews. Verified specs, verified prices.
Carbs per pack
50g
More fuel than any leading UK chew.
Sodium per pack
267mg
Formulated with added electrolytes — most rival chews carry little or none. Match intake to your sweat rate.
Carbs per piece
10g
PF 30 delivers two 15g chews; CEL50's five even 10g chews give finer control over intake.
Carbs per £1
22.5g
At each brand's best UK price. CEL50 first subscription delivery: 20% off — £39.99 a box.
- Carbs + electrolytes in one — 267mg sodium, no separate salt tabs to carry
- Subscribe & Save: 20% off your first delivery, then 15% ongoing
Prices in GBP, verified July 2026 from manufacturer pages (scienceinsport.com, enervit.com, eu.clifbar.com, precisionhydration.com), cross-checked with UK retailers. Competitor specs are their published figures. PF 30 Chew sodium derived from its <0.1g salt declaration — PF&H's fuel range is deliberately electrolyte-free; Clif sodium derived from the EU salt declaration. Carbs per £1 at each brand's best verified UK price (PF 30 at £2.00/pack, 30-pack direct); CEL50 at its first subscription delivery price (£39.99).
Recommended by top and everyday athletes
We have a growing worldwide roster of multi-discipline athletes who use our products during training and in competition, as well as a healthy community of everyday athletes. We know our products make a difference, because they use them when it matters most.
★★★★★
Poppy T.Hyrox and Triathlon
Pre-launch Testing
★★★★★
ShawnUltra Trail Runner
Pre-launch Testing
★★★★★
"The blocks are the perfect edition to my running vest for ultra trail events – the taste, the carbs, the texture. They couldn’t be better!"
Jordi P.Ultra Trail Runner
Pre-launch Testing
★★★★★
"I've been using these to fuel my rides recently! They have been the perfect addition to a gel + mix strategy!"
Harri M.Crit Racing Cyclist
Pre-launch Testing
★★★★★
“Tested these pre-launch. Took two packs on a two hour cycle and popped one every 20 minutes. No leg cramps and felt very good!”
Lewis C.Hybrid Athlete
Pre-launch Testing
Questions, answered.
A new product means new questions. We've answered the most common questions about CEL50 below, so you can focus on what matters: performing at your best.
Any endurance athlete who wants flexible control over their fuelling — runners, riders, hybrid athletes and multisport racers, at every level. With 267mg of sodium per pack, it is particularly suited to long, hot, high-sweat efforts. If a session is long enough to need carbohydrate, the modular format fits.
Subscribers save 20% on their first order and 15% on every delivery after, choose their own refill cadence, and can skip, swap flavours, pause or cancel anytime from their account.
Yes — by design. Carbohydrate is the most efficient fuel for endurance exercise, and CEL50 gives you 50g of fast-acting glucose split into five 10g chews you take one at a time — race fuel for hard sessions, not an everyday snack.
Glucose uptake is sodium-dependent, and water follows sodium and glucose across the gut — the oral rehydration principle. The 267mg of sodium supports how the body takes on both the carbohydrate and the fluid alongside it. Match the intake to your sweat rate; a sweat test tells you where you sit.
Because it's engineered fuel, not confectionery. CEL50 is 50g of fast-acting glucose in five controllable 10g chews — pectin-set and formulated to sit easy on a working gut. On subscription an 18-pack works out at £2.36 per 50g of carbs — less per gram than CLIF Bloks.
Chew one 10g block every 12–15 minutes from the start of your session, dialled up or down to the climb, the pace and your stomach. Five blocks per pack to dose across the effort.
Yes. Change your delivery frequency, next ship date, flavours or pack size in your account portal in a few taps — no emails, no waiting.
CEL50 is vegan-friendly and gluten-free — pectin-set, no gelatine. Full ingredient and allergen information is on every pack.
UK orders ship next working day from our UK warehouse. Delivery options, free-shipping thresholds and international rates are shown at checkout.
One flavour. Three fuels. CEL50 + GEL50 + SLT+.
Pick Wild Berry or Citrus and get the full race-day system in one bundle — CEL50 chews for gradual carbs, GEL50 for the sharp hits, SLT+ for hydration.
Pick your flavour
CEL50 Chewable carbs
- 50g fast-acting carbs per pack
- 5 × 10g blocks — you control the dose
- Added sodium + potassium
GEL50 Fast gel hit
- Our best-selling dual-carb energy gel
- The fast hit for key moments
- No chewing — squeeze and go
SLT+ Electrolyte drink
- High-sodium electrolyte hydration
- For long, hot, sweaty sessions
- Mixes into any bottle
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