ProzisWhey blend
Prozis Supreme Whey Protein
Prices checked . Label checked .
Prozis Supreme Whey Protein costs £1.35 per 25g of protein in the 907g pack (£39.26 at Prozis). That makes it the 19th cheapest of 21 reviewed animal-protein powders with a live price. It is a whey blend with 80g of protein per 100g and 24g in a 30g scoop, on the manufacturer's label.
- Best for
- Everyday shakes where a thicker, slower-digesting whey and casein blend is welcome.
- Skip if
- You want a pure whey for fast digestion, or you avoid acesulfame K.
- Watch out
- The name says whey, but calcium caseinate makes up a large share of the protein.
- Protein / 100g
- 80g
- Per 30g scoop
- 24g
- Per 25g protein
- £1.35
- 907g pack
- £39.26
Our verdict on Prozis Supreme Whey Protein
Prozis Supreme Whey Protein is a solid everyday shake with a strong label: 80g of protein per 100g and 24g in a 30g scoop, with 3.3g of fat. It is not a pure whey. The protein matrix is roughly half whey concentrate with calcium caseinate behind it, which makes it thicker and slower digesting. Sucralose and acesulfame K sweeten it. We found no product-specific buyer reviews yet, so taste is unproven. Try the 400g pack first.
How the price compares
Prozis Supreme Whey Protein against the 3 reviewed powders nearest to it on type and price, on cost per 25g of protein. Each figure is that product’s best in-stock partner listing, packs of 400g and over.
| Product | Type | Protein / 100g | Per 25g protein |
|---|---|---|---|
| Applied Nutrition Critical Whey | Whey blend | 72.7g | 96p |
| Protein Works Whey Protein 360 - PLATINUM Innovation | Whey blend | 69g | £1.03 |
| PER4M Nutrition Whey Protein | Whey blend | 70g | £1.12 |
| Prozis Supreme Whey Protein | Whey blend | 80g | £1.35 |
Where to buy Prozis Supreme Whey Protein
Live prices from partner retailers, one row per retailer at its best value pack, ordered by cost per 25g of protein. A bigger pack usually costs less per 25g, so compare like for like.
| Retailer | Pack size | Price | Per 25g protein | Go to retailer |
|---|---|---|---|---|
| Prozis | 907g | £39.26 | £1.35 | View deal ↗ |
Sold in 400g, 907g. One partner retailer stocks a 400g or larger pack.
Pros and cons
Pros
- 80g of protein per 100g and 24g in a 30g scoop
- 3.3g of fat and 4.1g of sugars per 100g
- The casein share makes it a reasonable shake before a long gap between meals
- Sold in a 400g pack, so trying a flavour is cheap
Cons
- Not a pure whey: calcium caseinate is the second protein source
- Protein varies by flavour, from 22.2g to 24g per 30g
- No product-specific buyer reviews found yet
- No third-party testing claim found
Nutrition and ingredients
From the manufacturer’s published label (Source). Sold as a whey, but the "Supreme protein matrix" is whey concentrate with calcium caseinate behind it, so it digests more slowly and drinks thicker than a straight whey. DigeZyme enzymes are added.
Per 100g figures are worked out from the per-serving label (24g protein, 0.99g fat, 1.23g sugars per 30g) and match what our scraper read from the UK page. Other flavours list 22.2g to 24g of protein per 30g.
| Nutrient | Per 100g | Per 30g |
|---|---|---|
| Protein | 80g | 24g |
| Energy | 375 kcal | 113 kcal |
| Carbohydrate | 6g | 1.8g |
| of which sugars | 4.1g | 1.2g |
| Fat | 3.3g | 1.0g |
| of which saturates | Not published | - |
| Fibre | 0.5g | 0.1g |
| Salt | 0.97g | 0.3g |
- Protein sources
- Whey protein concentrate (milk), about half the powder, Calcium caseinate (milk)
- Sweeteners
- Sucralose, Acesulfame K
- Pack sizes
- 400g, 907g
- Flavours
- Flavours include French Vanilla, Extreme Milk Chocolate, Cookies and Cream, Banoffee Pie, Dulce de Leche, Speculoos, Matcha Latte and Unflavoured.
- Third-party testing
- Informed Sport: no evidence found. Neither Prozis nor any retailer page we read claims Informed Sport or Informed Choice testing, and we found no Prozis listing in the public Informed Sport search. Drug-tested athletes should choose a batch-tested product instead.
- Made by
- Prozis, a Portuguese sports nutrition brand founded in 2007 (PROZIS.COM, S.A., Madeira)We could not confirm which Prozis company is named on UK packs.
What the maker does not publish
- Prozis does not publish saturates for this product in any copy of the label we could read.
- The label does not say whether the lecithin is soy or sunflower.
Method: nutrition figures come from the manufacturer label. Cost per 25g of protein is the pack price divided by the grams of protein in the pack, multiplied by 25.
What buyers say
Quoted word for word and linked, so you can read the full review or thread.
Recurring themes
- We found no buyer reviews that name Supreme Whey. Across Prozis reviews generally, fast delivery is the most praised point and price is the most common complaint.
Quick answers
How much protein is in Prozis Supreme Whey Protein?
80g per 100g on the label, which is 24g of protein in a 30g scoop. Some flavours list 22.2g per scoop.
Is Prozis Supreme Whey a pure whey?
No. It is about half whey concentrate, with calcium caseinate as the second protein source.
What sweeteners are in Prozis Supreme Whey?
Sucralose and acesulfame K.
Is Prozis Supreme Whey third-party tested?
We found no evidence that it is. Prozis does not claim Informed Sport or Informed Choice testing for it.
Is there a Prozis discount code?
Yes. WHEYWISE takes 10% off at prozis.com. Prices on this page are shown before the code.
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Label and copy last reviewed 26 October 2026 · Prices last fetched 14 October 2026