Karbolyn ® – Reflex Nutrition
Add to basket
30% Off

Karbolyn ®

£11.95 £8.37

12 servings

£0.69/serving

Power when you need it most, recovery when you’re done. Refuel your muscles.

  • Zero sugar. Zero fat

    Clean, steady fuel.

  • Suitable for vegans

    Sustainable for the planet

  • Fast absorption

    For when you need it

Karbolyn® is more than a carbohydrate powder – it’s precision fuel for peak performance. Each serving delivers 50g of patented Karbolyn®, engineered for fast absorption and steady energy release. It’s designed to help restore glycogen quickly and keep muscles firing through every phase of training. Unflavoured and easy-mixing, it works on its own or blended with your favourite drink or shake. Take it before, during, or after training to support sustained energy, faster recovery, and consistent performance.

CHOOSE BUNDLE

🚚 FREE SHIPPING OVER £50

⏱ NEXT DAY UK DELIVERY ORDER BY 13:00

Or express checkout with

PRODUCT INFORMATION

Karbolyn® is more than a carbohydrate powder – it’s precision fuel for peak performance. Each serving delivers 50g of patented Karbolyn®, engineered for fast absorption and steady energy release. It’s designed to help restore glycogen quickly and keep muscles firing through every phase of training. Unflavoured and easy-mixing, it works on its own or blended with your favourite drink or shake. Take it before, during, or after training to support sustained energy, faster recovery, and consistent performance.

HOW TO USE

Mix 50g (around one level 100ml measure) with 330ml of water. Shake well.

Drink around 60 minutes before training, sip during longer sessions, or use after exercise alongside your protein shake.

Recommended intake: one 50g serving per day.

DELIVERY & RETURNS

Free Standard Delivery on UK Orders Over £50.00
UK Standard (5-7 working days) £4.00
UK Next Day
Delivery £6.00
Jersey, Guernsey & Isle of Man £16.99
Click here for Delivery Information

Engineered for speed and efficiency

For more than 30 years, we’ve built nutritional systems that support your capability for years to come

No Spike. No Crash.

As your muscles burn through stored glycogen during intense training, energy drops and fatigue sets in, Karbolyn® is engineered to replenish those stores fast, keeping energy steady from the first rep to the last. Each 50g serving delivers 200kcal of pure, unflavoured carbohydrate that mixes cleanly into any shake, with nothing unnecessary added.

A DOSE THAT DELIVERS

Good nutrition should make you feel more in control, not more confused. So we keep things clear, using effective ingredients at scientifically-backed doses. Products built to help you stay capable for longer. Because you’ve still got it and we’re here to help you prove it.

QUALITY YOU CAN RELY ON

From our facility in Brighton, we’ve delivered the same high standards for more than two decades. We only believe in the highest grade minerals, so that's what we use.

What's inside

Karbolyn ®

Check out our

Product Comparisons

Protein Source
Serving Size
Protein
Protein %
Fat
Carbohydrate
Sugar
Calories
Karbolyn ®

Karbolyn ®

50g

0g

0%

0g

50g

0g

200kcal

30% Off

Karbolyn ®

£11.95 £8.37

12 servings

£0.69/serving

Power when you need it most, recovery when you’re done. Refuel your muscles.

  • Zero sugar. Zero fat

    Clean, steady fuel.

  • Suitable for vegans

    Sustainable for the planet

  • Fast absorption

    For when you need it

Karbolyn® is more than a carbohydrate powder – it’s precision fuel for peak performance. Each serving delivers 50g of patented Karbolyn®, engineered for fast absorption and steady energy release. It’s designed to help restore glycogen quickly and keep muscles firing through every phase of training. Unflavoured and easy-mixing, it works on its own or blended with your favourite drink or shake. Take it before, during, or after training to support sustained energy, faster recovery, and consistent performance.

CHOOSE BUNDLE

🚚 FREE SHIPPING OVER £50

⏱ NEXT DAY UK DELIVERY ORDER BY 13:00

Or express checkout with

Whey Protein Isolate, Whey Protein Concentrate & Milk Protein Concentrate

30g

24g

80%

0.5g

0.9g

0.5g

103kcal

10% Off

Instant Whey™ Pro

£34.99 £31.49

30 servings

£1.04/serving

24g of high-quality protein from an advanced blend of isolate and concentrate proteins, delicious but low in fat and sugar.

  • Build Lean Muscle

    24g whey per serving

  • Added digestive enzymes

    Digest more. Absorb more

  • Lean & low-calorie

    Only 108 calories per serve

Each serving provides 24g of high-quality protein from a blend of whey concentrate and isolate for a leaner nutritional profile.

Instantised for smooth mixing, it’s low in fat and includes digestive enzymes and friendly bacteria – built to support recovery today and build strength for tomorrow.

    Product included in bundles offers. Click to shop.

    CHOOSE BUNDLE

    🚚 FREE SHIPPING OVER £50

    ⏱ NEXT DAY UK DELIVERY ORDER BY 13:00

    Or express checkout with

    100% Whey Concentrate

    30g

    21g

    71%

    1.6g

    3.3g

    1.8g

    112kcal

    10% Off

    100% Whey

    £26.99 £24.29

    66 servings

    £0.81/serving

    Creamy, milkshake like and simply 21g high-quality whey protein.

    • BUILDS LEAN MUSCLE

      21g whey per serving

    • Great taste

      Richer, creamier shake.

    • Added friendly bacteria

      Easier on the stomach.

    100% Whey is made with instantised, ultra-filtered whey protein concentrate – a form of protein that keeps more of the natural nutrients from whole whey. With around 70% protein, it naturally contains healthy fats, carbohydrates, and bioactive peptides.

    That fuller nutritional profile gives it a creamier texture and a richer, more satisfying taste.

    Protein isn’t just for training – it’s the raw material your body uses to build and repair itself. Muscles, skin, hair, nails, enzymes, even your immune system all rely on it.

    Training pushes your body's demand for protein even higher. Every session creates tiny tears in muscle fibres – the signal to grow stronger – but without protein, they can’t rebuild. Recovery slows, fatigue lingers, and progress stalls.

    Whey protein concentrate gives your body a fast, high-quality supply of those building blocks. It delivers all the essential amino acids – including leucine, the trigger for muscle growth – and keeps more of the natural nutrients in whole whey, such as healthy fats and bioactive peptides. With added enzymes and friendly bacteria, it digests smoothly so more of that protein is absorbed and put to work.

    In the short term, that means fuel your body can use and quicker recovery after training. Over time, it helps you maintain lean muscle, supports your metabolism, and strengthens the systems you rely on – keeping you strong and capable in both training and life.<

    Each serving of 100% Whey delivers 21g of protein in a rich, creamy shake.

    Made with whey concentrate, it retains more of the natural nutrients in whole whey – including healthy fats and bioactive peptides – for a fuller profile. It’s the fuel your body needs to recover, rebuild, and stay strong day after day.

    Product included in bundles offers. Click to shop.

    CHOOSE BUNDLE

    🚚 FREE SHIPPING OVER £50

    ⏱ NEXT DAY UK DELIVERY ORDER BY 13:00

    Or express checkout with

    Frequently Asked Questions

    What you need to know

    Karbolyn® is a patented complex carbohydrate engineered for speed and efficiency. It’s designed to absorb rapidly and deliver steady energy without the spikes and crashes of simple sugars.

    Each 50g serving provides clean, sustained fuel that helps replenish muscle glycogen and power performance before, during, or after intense training. Unflavoured and easy to mix, it fits straight into your routine – whether you’re fuelling up, keeping energy steady, or recovering ahead of your next session.

    Karbolyn® is designed for athletes and regular gym-goers who train hard and need fast, steady carbohydrate energy that won't spike or crash. It is ideal for anyone looking to refuel muscles efficiently before, during, or after demanding sessions, and because it is a clean, unflavoured carbohydrate, it mixes easily alongside your existing protein shake or intra-workout drink without altering the taste.

    When you train hard, your muscles draw heavily on stored glycogen – the body’s main fuel for power and endurance. As those stores run low, energy output drops and fatigue sets in. Karbolyn® is a patented carbohydrate engineered for rapid absorption and efficient glycogen replenishment, helping muscles refuel before, sustain performance during, and recover after intense training. Its unique structure moves quickly through the stomach and into the bloodstream, delivering steady energy without the crash of simple sugars. In the short term, that means stronger sessions, better endurance, and faster recovery. With consistent fuelling and recovery, this cycle of depletion and replenishment builds lasting resilience – keeping your muscles fuelled, your energy steady, and your performance sharp day after day.

    Mix 50g of Karbolyn® with 330ml of water and consume it approximately 60 minutes before training to fuel your session. It can also be sipped during longer training sessions to maintain energy, or taken after exercise alongside a protein shake to support glycogen recovery. The recommended intake is one 50g serving per day.

    Yes, you have the right to cancel your order within 14 days from the date you receive your items, without needing to give a reason.

    You have 14 days from the date of delivery to cancel your order under your cooling-off period rights. This allows you to change your mind about your purchase and return the item, provided it is unused and in its original, resellable condition.

    To arrange a return or refund, please contact our Customer Service team via email on info@reflexnutrition.com or call 01273 303817 with your order number and delivery address, and we will guide you through the next steps.

    Yes, return shipping is your responsibility to arrange and pay for.


    If a delivery fails or you don't collect your parcel and it comes back to us, additional charges may apply.

    If there is an issue with your order, please contact our Customer Service team via email info@reflexnutrition.com or call 01273 303817 with your order number and delivery address as soon as possible so we can investigate and resolve the issue.

    Refunds go back to your original payment method once we've received and processed your return. Timings vary by payment provider; your bank or card issuer will confirm the exact date.

    Items must be unused and in their original, resellable condition, exactly as you received them. Pack them securely in appropriate packaging to protect them in transit.


    We can't accept returns that arrive damaged due to poor packaging.

    We are unable to accept returns for certain items where it would not be suitable for resale, such as products that have been opened, used, or are not in a resellable condition.

    If you no longer have your receipt or order confirmation, please contact our Customer Service team via email info@reflexnutrition.com or call 01273 303817 with as much information as possible (such as your name, email address, or delivery postcode), and we will do our best to locate your order.

    Replacements or exchanges will be processed once your returned item has been received and inspected. Delivery times for replacements will follow standard shipping timeframes.

    Yes, items purchased using a discount code or as part of a promotion can still be returned, provided they meet the returns criteria. This means items must be unused and in their original, resellable condition, exactly as you received them. Pack them securely in appropriate packaging to protect them in transit.

    READ THE

    Customer Reviews