USN Blue Lab Whey

USN Blue Lab Whey

  • Tested for sport
70g
Protein / 100g
24g
Per 34g scoop
100p
Per 25g protein
£55.89
2000g pack

Our verdict

Solid on the numbers

Scored on the label and the price, not on how it tastes.

What it does well
  • Isolate is first on the ingredient list, ahead of hydrolysate and concentrate
  • Added Tolerase L lactase enzyme, the only product in this batch with one
  • Informed Choice certified, which is a real third-party programme
  • Inulin gives it 7.4g of fibre per 100g, unusual in a whey product
What to watch for
  • Salt at 1.4g per 100g is the highest in this batch
  • Saturated fat at 3.7g per 100g is roughly double most competitors
  • Informed Choice is per production run, not per batch like Informed Sport
  • The allergen statement warns of soy traces even though the ingredient list specifies sunflower lecithin
Read the full verdict

Blue Lab is the only product in this batch with a digestive enzyme built in: Tolerase L, a pH-stable lactase aimed at the lactose in the concentrate portion. It is also Informed Choice certified, and isolate leads the blend. The two things to weigh against that are the salt, at 1.4g per 100g the highest here, and saturated fat at 3.7g per 100g, which is roughly double most of its competition.

Where to buy USN Blue Lab Whey

Ordered by cost per 25g of protein, because pack sizes and protein densities differ enough that a headline price on its own does not tell you which is better value.

Retailers stocking USN Blue Lab Whey, ordered by cost per 25g of protein
RetailerSizePricePer 25g
Amazon UK2000g£55.89100pView deal
Price history
Low £29.00 · High £55.0024 May to 20 Aug

How it scored

How we score

Four categories, each out of 25, every one taken from the label or the live partner price.

Protein density15/25

70g per 100g

Value for money14/25

100p per 25g protein

Macro cleanliness14/25

4.6g sugar, 5.5g fat per 100g

Third-party testing25/25

confirmed in the certifier database

Nutrition

Taken from the manufacturer’s published label. Source.

USN states 24g of protein in a 34g scoop, which resolves to about 70.6g per 100g and matches the per-100g panel reproduced by UK retailers. One retailer still shows a 26g figure, which appears to be a superseded formula. We use USN’s own number.

Nutrition per 100g and per serving
NutrientPer 100gPer 34g
Protein70g23.8g
Energy370 kcal126 kcal
Carbohydrate6.1g2.1g
of which sugars4.6g1.6g
Fat5.5g1.9g
of which saturates3.7g1.3g
Fibre7.4g2.5g
Salt1.4g0.5g

Ingredients and formulation

Protein sources, in label order
  1. 01Whey protein isolate
  2. 02Whey protein hydrolysate
  3. 03Whey protein concentrate

Isolate is listed first, then hydrolysate, then concentrate, which is an unusually strong ordering for this price. USN does not publish the ratio. The formula also carries inulin, which is where the 7.4g of fibre per 100g comes from, and Tolerase L, a pH-stable lactase enzyme.

Sweeteners and emulsifier

Sucralose

Sunflower lecithin

The allergen statement nonetheless warns of possible traces of soya protein from soy lecithin, which contradicts the ingredient list. Do not treat this product as soy free.

Pack sizes

476g · 510g · 908g · 2kg

Eleven flavours on the UK site.

Third-party testing

Certification is per programme and often per flavour or per batch, so a badge on one product does not carry across a brand’s whole range.

Informed ChoiceConfirmed

Informed Choice tests a sample per production run. That is a weaker guarantee than Informed Sport, which tests every batch. We found no Informed Sport listing for this product.

Source

Made by

USN (Ultimate Sports Nutrition), founded 1999 in Pretoria, South AfricaUSN manufactures on three continents and does not disclose which site produces the UK stock.

Taste and what buyers report

Quoted and linked, so you can read the full thread.

USN or Gold Standard are the two I have found to be best.
r/AskUK

What the maker does not publish

  • USN does not disclose the country of manufacture for the UK stock.
  • USN publishes its per-flavour nutrition as images we could not read, so the per-100g panel here comes from a retailer reproduction rather than USN directly.
  • Buyer reports do not converge on a best or worst flavour for this product.

Alternatives worth a look

Frequently asked questions

How much protein is in USN Blue Lab Whey?

24g of protein in a 34g scoop, about 70g per 100g. One UK retailer still lists 26g, which appears to be an older formula.

Is USN Blue Lab Whey good for lactose intolerance?

It contains Tolerase L, a pH-stable lactase enzyme intended to help break down lactose, and isolate leads the blend, which is naturally lower in lactose than concentrate. That is a better starting point than most whey blends, but it is not a lactose-free product.

Is USN Blue Lab Whey Informed Sport certified?

It is Informed Choice certified, not Informed Sport. Informed Choice tests a sample per production run; Informed Sport tests every batch. If you compete in a tested federation, that distinction matters.

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Last updated 19 August 2026