High Protein Twin Bar 12 Pack – Reflex Nutrition
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High Protein Twin Bar 12 Pack

£33.99 £27.19

21g of high-quality protein in just 185kcal. Low in sugar, high in fibre. Delicious fuel that will keep you going and going.

  • High protein

    Fuel every rep

  • Low in sugar

    Aiding your diet

  • High fibre

    For supported digestion

The Twin Bar is a clean, reliable fuel that keeps your nutrition on track – whether you're heading to the gym or sitting in the office. At just 185kcal, it delivers 21g of protein in a lean, portable format, finished with a milk chocolate coating for taste as much as function.

The blend of three protein isolates – milk, whey, and soy – provides the essential amino acids your muscles use to repair and rebuild. Each bar is split into two pieces, giving you built-in control over how and when you refuel.

It's nutrition that fuels the way you live – strong, sharp, and in control.

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PRODUCT INFORMATION

The Twin Bar is a clean, reliable fuel that keeps your nutrition on track – whether you're heading to the gym or sitting in the office. At just 185kcal, it delivers 21g of protein in a lean, portable format, finished with a milk chocolate coating for taste as much as function.

The blend of three protein isolates – milk, whey, and soy – provides the essential amino acids your muscles use to repair and rebuild. Each bar is split into two pieces, giving you built-in control over how and when you refuel.

It's nutrition that fuels the way you live – strong, sharp, and in control.

HOW TO USE

Have a bar any time you need a reliable source of protein – before or after training, or as a smarter alternative to high-sugar snacks.

This product is a food supplement and should be used in conjunction with a varied and balanced diet and a healthy lifestyle, not as a substitute for such. Do not exceed the stated daily dose. Keep out of reach of young children.

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
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Fuelled you

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

21g of Protein. Zero Compromise.

The Reflex High Protein Twin Bar packs 21g of protein from a triple protein blend into just 185kcal. Low in sugar, high in fibre, and split into two pieces for built-in portion control, it's the portable, clean-fuel snack that keeps your nutrition on point whether you're training, commuting, or powering through a long day.

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

High Protein Twin Bar 12 Pack

Frequently Asked Questions

What you need to know

If you're ordering before 1PM on a weekday then you can expect next day delivery.

For anyone who trains hard, lives busy, and refuses to compromise on nutrition, this bar is built for you. Whether you're fuelling a morning session, powering through back-to-back meetings, or just need something clean and portable that won't derail your macros, it delivers the protein hit you need without the excess calories or junk that comes with most convenience foods.

Reflex Twin Bars deliver 21g of protein per bar from a triple protein blend, making them one of the most efficient high-protein, low-calorie snacks available at just 185kcal. With only 1.6g of sugar per bar, you get sustained energy without the spikes or crashes, while the high fibre content supports digestion and keeps you feeling fuller for longer. The unique split format gives you two pieces per bar, built-in portion control that fits around your appetite, your training schedule, and your day.

The best time to eat a protein bar depends on your immediate fitness goals. For example you could consider having the bar prior to your workout for energy and to prevent muscle breakdown when you train or have a bar after the workout to kickstart muscle repair and recovery.

The 2 hour protein rule refers to the post-workout window in which consuming protein is considered most effective for muscle repair and growth. After exercise, your muscles are primed to absorb nutrients, and getting 20–40g of quality protein within two hours of training is widely recommended to support recovery, reduce muscle breakdown, and stimulate muscle protein synthesis. While research suggests the window may be wider than once thought, hitting your protein intake consistently and especially around training remains one of the most important habits for anyone looking to build strength, maintain muscle, or improve body composition.

Protein deficiency occurs when your daily intake falls consistently short of what your body needs to function and repair itself. The most common signs include muscle weakness and wasting, persistent fatigue, brittle hair and nails, poor skin health, and a weakened immune system that leaves you more susceptible to illness.

You may also notice increased hunger or intense sugar cravings, your body's way of signalling it needs more fuel. If you recognise these symptoms, increasing your intake with a protein source is one of the most effective first steps.

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.

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.

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.

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.

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