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Product guide

USN Protein 50 Ready-to-Drink Chocolate Shake, 6 x 500ml

USN Protein 50 is a chocolate ready-to-drink protein shake supplied as six 500ml bottles. The listing claims 50g of milk protein per bottle, no added sugar and lactose-free formulation, with no mixing required.

At a glance

  • Ready to drink, so no powder or mixing equipment is needed.
  • The listing states 50g of milk protein per bottle and 2g of fat per 500ml serving.
  • Described as lactose-free and made with lactase enzyme.
  • The manufacturer states that the shake has no added sugar, though naturally occurring sugars are present.
Price
£17.99Save 25%

Reference price: £24.00

Price checked: 13 Nov 2026

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Often bought together

Pros and cons

Pros

  • A substantial listed protein amount in a single 500ml bottle.
  • Grab-and-go format is convenient when mixing a shake is impractical.
  • Six-bottle pack provides multiple individual servings.

Technical specifications

8 specifications
Identity
BrandUSN UK (LTD)
ModelRTD029
Country of originUnited Kingdom
Nutrition and ingredients
Protein per bottle50g
Fat per 500ml serving2g
IngredientsSkimmed MILK (90%), MILK protein concentrate, colouring (riboflavin), stabilisers (gallan gum, carrageen), sweetener (sucralose), enzyme (lactase)
Pack and dimensions
Pack size6 x 500ml
Dimensions and weight listed21 x 14 x 20 cm; 3.3 kg

What to know before buying

  • The supplied dimensions and weight appear to describe the pack, but the listing does not explicitly identify their scope.
  • Store unopened in a cool, dry place. Serve chilled, shake well, and refrigerate after opening. The manufacturer advises consuming within 12 hours. Slight separation and lumps may occur.

Who is it for?

A good fit for

  • People wanting a ready-to-drink milk-based protein shake without mixing.
  • Buyers seeking a listed 50g protein serving in a chocolate flavour.
  • Lactose-sensitive shoppers considering a lactose-free, enzyme-treated dairy drink, subject to their individual needs.

Less suited to

  • People avoiding dairy or milk ingredients, as the ingredients include skimmed milk and milk protein concentrate.
  • Shoppers who prefer a lightly sweetened taste, since customer feedback reports mixed reactions including that it can be too sweet.
USN Protein 50 Ready-to-Drink Chocolate Shake, 6 x 500ml · photo 2
Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 178 ratings
  • 5 stars69%69%
  • 4 stars17%17%
  • 3 stars5%5%
  • 2 stars2%2%
  • 1 star7%7%

Customer feedback reports good value for money, while taste reactions are mixed. Some find it tasty and others describe it as too sweet or having a chemical taste. That matters particularly for a six-bottle pack, where flavour preference may affect whether buyers enjoy using every serving. The aggregate ratings lean positive overall, but do not establish why individual customers rated it as they did.

Positive themes

  • Customers report that it offers good value for money.

Mixed feedback

  • Taste receives mixed reactions, including reports of excessive sweetness and a chemical taste.

Frequently asked questions

How much protein is listed per bottle?

The product listing claims 50g of protein in each bottle.

Does it need to be mixed?

No. It is supplied ready to drink. The manufacturer advises shaking well before use.

Is this shake lactose-free?

The listing describes it as lactose-free and says it contains lactase enzyme. It is still made with milk ingredients.

How should an opened bottle be stored?

The directions say to keep it refrigerated after opening and consume within 12 hours.

USN Protein 50 Ready-to-Drink Chocolate Shake, 6 x 500ml · photo 3
Additional product photo 3

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