Research has shown EAAs to:

- Prevent muscle fatigue during a resistance training session (1)
- Improve lean body mass (2)
- Assist with muscle growth (3)
- BCAAs have been shown to reduce muscle soreness after resistance training exercise (4)

Along with amino acids, this product also contains added Vitamin B6, which contributes to a normal metabolism, and the electrolyte Magnesium which aids muscle function and helps to reduce tiredness and fatigue. It also contains Piperine (Black Pepper Extract) and is low in sugar, fat and calories.

(1) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6107748/

(2) https://academic.oup.com/jcem/article/94/5/1630/2598217

(3) https://link.springer.com/article/10.1186/s41110-016-0022-x

(4) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6212987/

Store below 25o֯C in a cool, dry place. Once opened always tightly replace the lid into the container when not in use. Best consumed within three months of opening or by the best before date, whichever is sooner.

Essential Amino Acids (EAAs) are the nine amino acids your body cannot produce on its own, meaning you can only get them through food or supplementation. They are the building blocks of protein and play a direct role in promoting muscle growth and repair. If you're training regularly and not getting enough EAAs through your diet (from sources like meat, eggs, or dairy), a supplement like Reflex Nutrition EAA is an efficient and convenient way to close that gap.

Each serving of Reflex Nutrition EAA delivers 16g of all nine essential amino acids. This includes three branched-chain amino acids (BCAAs), L-Leucine, L-Isoleucine, and L-Valine, plus six additional EAAs: L-Lysine, L-Phenylalanine, L-Threonine, L-Histidine, L-Methionine, and L-Tryptophan.

BCAAs (Branched-Chain Amino Acids) are a subset of EAAs. While BCAAs are well-studied for reducing muscle soreness after resistance training, they only cover three of the nine essential amino acids. EAA supplements like Reflex Nutrition EAA provide all nine, offering broader support for muscle growth, lean body mass, and reducing fatigue during training. For most people who train, a full-spectrum EAA product is the more complete option.

Reflex Nutrition recommends consuming EAA during your workout. This intra-workout timing is supported by research showing EAAs can help prevent muscle fatigue during resistance training sessions. Mix 25g (two level scoops) with 500ml of water and sip throughout your session. You can take up to two servings 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.

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.

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.