ProzisWhey isolate
Prozis 100% Whey Hydro Isolate ULTIMATE SERIES
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Prozis 100% Whey Hydro Isolate ULTIMATE SERIES costs £1.16 per 25g of protein in the 900g pack (£34.74 at Prozis). That makes it the 14th cheapest of 21 reviewed animal-protein powders with a live price. It is a whey isolate with 83g of protein per 100g and 25.7g in a 31g scoop, on the manufacturer's label.
- Best for
- Lifters who want isolate and creatine in one scoop instead of two products.
- Skip if
- You already take creatine, or you need a batch-tested product for drug-tested sport.
- Watch out
- Added BCAAs and glutamine are counted in the protein figure, so the whey share is lower than 83g.
- Protein / 100g
- 83g
- Per 31g scoop
- 25.7g
- Per 25g protein
- £1.16
- 900g pack
- £34.74
Our verdict on Prozis 100% Whey Hydro Isolate ULTIMATE SERIES
Prozis 100% Whey Hydro Isolate ULTIMATE SERIES is aimed at people who want a premium isolate with creatine and other extras already mixed in. Prozis' UK label gives 83g of protein per 100g, roughly 25.7g in a 31g scoop, with 5.1g of carbohydrate and 3.7g of fat. Part of that protein figure comes from added BCAAs and glutamine rather than whey. Buy it for the convenience of the extras, and compare its cost per 25g with plain isolates first.
How the price compares
Prozis 100% Whey Hydro Isolate ULTIMATE SERIES 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 |
|---|---|---|---|
| PER4M Nutrition Isolate Zero | Whey isolate | 87g | £1.15 |
| Prozis 100% Whey Hydro Isolate ULTIMATE SERIES | Whey isolate | 83g | £1.16 |
| Applied Nutrition ISO XP | Whey isolate | 90g | £1.18 |
| MyProtein Impact Whey Isolate | Whey isolate | 82g | £1.29 |
Where to buy Prozis 100% Whey Hydro Isolate ULTIMATE SERIES
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 | 900g | £34.74 | £1.16 | View deal ↗ |
Sold in 907g, 1.8kg. One partner retailer stocks a 400g or larger pack.
Pros and cons
Pros
- 83g of protein per 100g from isolate and hydrolysed whey
- Creatine is already in the scoop
- Buyers who name the hydro isolate range are mostly positive about it
- Large flavour range, including a 1.8kg tub
Cons
- Part of the protein figure is added BCAAs and glutamine rather than whey
- Sugars, saturates and salt are not in the UK panel we hold
- Buyers have complained about price rises on the hydro isolate range
- No third-party testing claim found
Nutrition and ingredients
From the manufacturer’s published label (Source). An isolate-led whey with extras mixed in: creatine monohydrate, BCAAs, glutamine and a probiotic Prozis calls CoreBiotic X. Prozis does not publish a full UK ingredient list in any form we could read, so treat the extras as claimed.
Per 100g figures as our scraper read them from the UK product page. The per-serving protein is our arithmetic from 83g per 100g. Copies of the label from other markets range from 82g to 91g per 100g by flavour, and the protein figure includes added BCAAs and glutamine.
| Nutrient | Per 100g | Per 31g |
|---|---|---|
| Protein | 83g | 25.7g |
| Energy | 386 kcal | 120 kcal |
| Carbohydrate | 5.1g | 1.6g |
| of which sugars | Not published | - |
| Fat | 3.7g | 1.1g |
| of which saturates | Not published | - |
- Protein sources
- Whey protein isolate (milk), Hydrolysed whey protein (milk), Added BCAAs and L-glutamine
- Sweeteners
- Sucralose
- Pack sizes
- 907g, 1.8kg
- Flavours
- Flavours include Chocolate, Vanilla, Cookies and Cream, White Chocolate, Salted Caramel, Speculoos, Mango and Strawberry Wafer.
- 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 a full ingredient list for the ULTIMATE SERIES that we could read, including the creatine dose per scoop on UK packs.
- The UK panel we hold does not give sugars, saturates or salt.
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
- None of the reviews we found names the ULTIMATE SERIES, so these quotes cover Prozis hydro isolate generally.
- Buyers like the product and reorder it; price is the recurring complaint.
“I love the Hydro Isolate powder - it's my second time purchasing it!”
“Loved it except for the fact that the seal on the Whey Hydro Isolate was pearced.”
“3 orders of Whey Hydro is expensive.”
Quick answers
How much protein is in Prozis Whey Hydro Isolate ULTIMATE SERIES?
83g per 100g on the UK label, about 25.7g in a 31g scoop. Part of that is added BCAAs and glutamine.
Does Prozis Whey Hydro Isolate ULTIMATE contain creatine?
Yes. Prozis lists creatine monohydrate in the ULTIMATE SERIES, alongside BCAAs, glutamine and a probiotic.
Is it a pure whey isolate?
No. It is isolate-led, with hydrolysed whey, added amino acids, creatine and other extras.
Is Prozis Whey Hydro Isolate 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.
Alternatives to Prozis 100% Whey Hydro Isolate ULTIMATE SERIES
MyProtein
Impact Whey Isolate
A simpler formula, whey protein isolate (milk), 96% of the powder only.
£1.29 / 25g protein
Bulk
Pure Whey Isolate
A simpler formula, whey protein isolate (milk) only.
£1.30 / 25g protein
Applied Nutrition
ISO XP
90g protein per 100g against 83g here, if density is what you are after.
£1.18 / 25g protein
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Label and copy last reviewed 26 October 2026 · Prices last fetched 14 October 2026