PER4M Whey Protein
PER4M Whey Protein
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Description
Description
PER4M Whey Protein — Find Your Flavour
Support your training and everyday protein goals with PER4M Whey Protein. A convenient way to add protein to your routine, with a wide choice of flavours.
Why choose PER4M?
- Protein contributes to the growth and maintenance of muscle mass.
- Enjoy as a shake with water or milk, or mix into protein recipes.
- Choose your preferred flavour using the options above.
How to use
Prepare according to the instructions on your product packaging. Your total protein needs depend on your diet, training and goals.
Important product information
Pack size varies by flavour or batch, approximately 1,800g–2,010g. Always check the specific product label for ingredients, allergens, serving size and nutritional values; these can vary by flavour.

Shop with Muscle Factory: Choose an available flavour and add it to your basket. Looking to build your supplement routine? Explore creatine and shaker options alongside your protein.
Shipping
Shipping
Shipping Policy
At Muscle Factory, we are committed to ensuring that your orders are processed and shipped as quickly and efficiently as possible. Below are the details of our shipping process:
Shipping Method
- We use Royal Mail Tracked Service for all our deliveries to ensure secure and timely shipping.
Processing Time
- All orders are processed and packed within 1-2 business days after the order is placed.
- Orders placed on weekends or holidays will be processed on the next business day.
Delivery Time
- Once shipped, your order will arrive within 48-72 hours via Royal Mail Tracked Service (for applicable regions).
- Delivery times may vary based on location, carrier delays, or unforeseen circumstances.
Order Tracking
- A tracking number will be provided via email as soon as your order is dispatched.
- You can use this tracking number to monitor the status of your shipment.
Shipping Costs
- Free standard UK delivery is available on qualifying orders over £100. For other orders, available delivery services and charges are shown at checkout before payment.
International Shipping
- If you are located outside the United Kingdom, please contact us at sales@muscle-factory.co.uk before placing an order to confirm whether delivery is available.
Lost or Delayed Shipments
- If your package is delayed beyond the expected delivery window, please contact our customer support team at sales@muscle-factory.co.uk with your order number.
- In case of lost shipments, we will work with the carrier to investigate and provide a resolution.
Changes & Order Modifications
- Once an order has been processed, we are unable to modify the shipping address. Please ensure all details are correct before completing your purchase.
Returns
Returns
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at sales@muscle-factory.co.uk.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at sales@muscle-factory.co.uk.

WHY SHOP WITH MUSCLE FACTORY?
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- 5 stars: 18 (64%)
- 4 stars: 6 (21%)
- 3 stars: 3 (11%)
- 2 stars: 0 (0%)
- 1 star: 1 (4%)
Ordered Cookies & Cream protein powder and received Vanilla instead. These flavours are not even remotely similar, and I certainly didn't order vanilla!
What has made the experience even worse is the complete lack of an apology or any genuine effort to put things right and satisfy the customer. For a first-time customer, this is a very disappointing first impression.
I've requested a full refund and will be returning the incorrect item. Simple mistakes can happen, but how a company handles them says a lot about its customer service, and unfortunately, this experience has fallen well short of expectations.
First order, wrong product, poor customer service. Wouldn't recommend based on my experience.
The protein itself is 5/5, digests easily and taste is decent. Arrived a day later than expected but the customer service was helpful when I reached out. Will order again.
The Double Chocolate taste is incredible, not overly sweet but definitely satisfies the sweet tooth post-workout. High protein content and the macros are spot on. Will be my go-to from now on.
The protein itself is 5/5, digests easily and taste is decent. Arrived a day later than expected but the customer service was helpful when I reached out. Will order again.
Brilliant product, mixes perfectly with water or milk. Salted Caramel tastes delicious. Shipped quickly and arrived well packaged. Standard of service from MF is top notch.
Absolutely love the Vanilla Ice Cream flavor. It mixes so easily in my shaker with zero clumps. Doesn't cause any bloating or heavy stomach feeling which I usually get with whey. Fast delivery from Muscle Factory too!
Solid profile and digests really well. I have been taking this Double Chocolate whey protein daily for 3 months now. Muscle recovery has noticeably improved. Premium quality supplement.
Outstanding taste and mixes smooth. Use it in my morning oats and post-gym shakes. Best whey protein on the market for value and taste.
Solid profile and digests really well. I have been taking this Strawberry Splash whey protein daily for 3 months now. Muscle recovery has noticeably improved. Premium quality supplement.
Absolutely love the Vanilla Ice Cream flavor. It mixes so easily in my shaker with zero clumps. Doesn't cause any bloating or heavy stomach feeling which I usually get with whey. Fast delivery from Muscle Factory too!
The protein itself is 5/5, digests easily and taste is decent. Arrived a day later than expected but the customer service was helpful when I reached out. Will order again.
The protein works fine and profile is good, but it foams up quite a bit when shaken. Double Chocolate is okay, but I've had better tasting wheys. Digestion is fine though.
Solid profile and digests really well. I have been taking this Salted Caramel whey protein daily for 3 months now. Muscle recovery has noticeably improved. Premium quality supplement.
Brilliant product, mixes perfectly with water or milk. Banana Split tastes delicious. Shipped quickly and arrived well packaged. Standard of service from MF is top notch.
Decent macros and easy to drink. White Chocolate Raspberry flavor is nice, leaves a slight aftertaste but nothing bad. Overall a really solid purchase for daily training support.
The Salted Caramel taste is incredible, not overly sweet but definitely satisfies the sweet tooth post-workout. High protein content and the macros are spot on. Will be my go-to from now on.
Brilliant product, mixes perfectly with water or milk. White Chocolate Raspberry tastes delicious. Shipped quickly and arrived well packaged. Standard of service from MF is top notch.
Decent macros and easy to drink. Salted Caramel flavor is nice, leaves a slight aftertaste but nothing bad. Overall a really solid purchase for daily training support.
The Salted Caramel taste is incredible, not overly sweet but definitely satisfies the sweet tooth post-workout. High protein content and the macros are spot on. Will be my go-to from now on.
Great protein powder. It mixes really well and the White Chocolate Raspberry taste is solid, though slightly too sweet for my personal preference. Still, 24g of protein per scoop is excellent value.
Macros are good for the price, but the Double Chocolate flavor is a bit bland. It does clump slightly if you don't shake it aggressively, but does the job for a budget-friendly whey.
Brilliant product, mixes perfectly with water or milk. Salted Caramel tastes delicious. Shipped quickly and arrived well packaged. Standard of service from MF is top notch.
Frequently Asked Questions
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