An effective post-workout routine combines rehydration, protein for muscle repair, and carbohydrates to restore energy levels. Drink water and replace lost electrolytes, especially sodium and potassium, after intense sweating. Refuel with protein and restore glycogen by eating a fast-acting or complex carbohydrates to replenish the energy stores used during your session.

Reflex Nutrition Growth Matrix is an all-in-one post-workout recovery shake built around hydrolysed whey protein, fast-acting carbohydrates, and a stack of performance ingredients including L-Leucine, Creatine Monohydrate (Creapure®), peptide-bonded glutamine, and Vitamin B6. Rather than needing separate post-workout supplements, Growth Matrix combines everything required for muscle recovery and growth into a single serving, designed to be taken immediately after training.

Creapure® is a pharmaceutical-grade creatine monohydrate manufactured in Germany to the highest standards of purity and safety. It is one of the most rigorously tested forms of creatine available. Including Creapure® in Growth Matrix means each post-workout serving supports not just immediate muscle recovery, but also the ongoing creatine saturation that helps muscles regenerate energy faster during high-intensity training.

L-Leucine is a branched-chain amino acid (BCAA) and is widely regarded as the most important trigger for muscle protein synthesis, the process by which muscles repair and grow after exercise. By including L-Leucine alongside the rapidly absorbed hydrolysed whey protein, Growth Matrix is formulated to activate the muscle-building response as quickly as possible in the post-workout window.

Growth Matrix is designed to be taken immediately after a workout. Consume one serving of 105g straight after training to take advantage of the post-workout window, when muscles are most receptive to protein, carbohydrates, and recovery nutrients. It should not be used as a meal replacement, it is a food supplement intended to complement a varied and balanced diet.

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.

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.

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.

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.

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.

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

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.

Our courier does not require a signature and will take a photo as proof of delivery. If no “safe place” or alternative delivery option has been selected, your parcel will be returned to the depot and reattempted the next working day. If the parcel is not redelivered or collected within 5 days, it will be returned to us and a charge may apply.

If your order arrives damaged or incorrect, please contact our Customer Service team as soon as possible with your order number, delivery address, and photos of the issue, so we can resolve this quickly.

If you believe your parcel is lost, please contact our Customer Service team with your order number and delivery address so we can investigate this with the courier.

If your order has not arrived within the expected timeframe, please check your tracking information first. If you still need help, please contact our Customer Service team quoting your order number and delivery address, and we will be happy to assist.

Once your order has been dispatched, it is not usually possible to change the delivery address. However, you may be able to update delivery preferences directly with the courier using your tracking details.

Once your order has been dispatched, you will receive an email from the courier with your tracking details and delivery updates.

Standard delivery typically takes 3–5 working days. Next working day delivery is available on eligible orders placed before 1pm Monday to Thursday.

We currently deliver within the UK, including Jersey, Guernsey, and the Isle of Man. Please note, we are unable to deliver to P.O. boxes or shipping agent addresses.

Yes, we offer free standard delivery on UK mainland orders over £50.

Standard UK mainland delivery is £4 for orders under £50, and free for orders £50 and over. Next working day UK mainland delivery is available for £6.