Platinum Hydro Whey
by Optimum Nutrition
Pure protein, minimal extras: filtered for maximum protein content with very low fat and carbs per serving.
- Up to 30g protein per serving
- Low fat - under 3g per 100g
- Low carb - suitable for keto and cutting diets
- Extra filtered for reduced lactose
- For shakes, smoothies, baking and more
FlavourVanilla Bean
Size1.6kg
Best price today
In stock£80.00
£5.00 / 100g
You save £12.89vs highest tracked price today
Secure retailer checkout
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Transparent protein profile
What's inside
Values per 100g, with the amount in one 40g serving
75g protein
30g per 40g serving - solid protein content
3g carbohydrates
Extremely low carbs - suitable for keto and low-carb diets
1g fat
0.5g per 40g serving - very lean
353 kcal
141 kcal per 40g serving
View full nutritional information
| Nutrient | Per 100g | Per serving (40g) |
|---|---|---|
| Protein | 75g | 30g |
| Calories | 353 kcal | 141 kcal |
| Carbohydrates | 2.9g | 1.2g |
| Fat | 1.3g | 0.5g |
Know when to buy
Price history
Lowest price on record, any flavour or size
£4.28/100g (£68.50 for 1.6kg on 5 Sept 2026)
1.6kg · all flavours · price per pack
- Amazon UKlatest £80.00, lowest £68.50, highest £88.00 in the last 90 days
Quick answers
Is this right for you?
Who is it for?
Optimum Nutrition Platinum Hydro Whey is designed for athletes, lean-bulk dieters, and anyone who wants maximum protein with minimal fat and carbs. Whey isolate is also a better option for people with mild lactose sensitivity, since the extra filtration removes most of the lactose.
What can you expect?
A lean, fast-absorbing protein with very low fat and carbohydrate content. Whey isolate goes through extra filtration to deliver 85-95% protein purity, which means more protein per scoop and fewer calories from filler. Expect quick absorption, making it ideal straight after a workout. With 75g of protein per 100g (around 30g per 40g serving), Optimum Nutrition Platinum Hydro Whey sits in a solid mid-range for a whey isolate product.
What else do you need to know?
Optimum Nutrition Platinum Hydro Whey is a whey isolate protein powder made by Optimum Nutrition. It comes in 1.6kg sizes. Every price on WheyWise is read from the retailer’s own page and re-checked daily and sorted by cost per 100g, so you can see both the cheapest option and how current it is. All links to Amazon and retailer sites are affiliate links - this is how WheyWise stays free.
Frequently asked questions
Where is the cheapest place to buy Optimum Nutrition Platinum Hydro Whey in the UK?
The best price we have verified today is £5.00 per 100g for the 1.6kg bag, checked 26 Oct 2026. Use the buy button above to go straight to it.
How much protein does Platinum Hydro Whey contain per 100g?
Platinum Hydro Whey contains 75g of protein per 100g, with 30g per 40g serving. It is a whey isolate product.
Is Optimum Nutrition Platinum Hydro Whey currently in stock?
At the last check, 3 out of 3 tracked variants were in stock. Stock status carries the same fetch time as the price shown above, so check the retailer listing before ordering.
Pick your pack
1 size · any flavour · cost per 100g for each
Where to buy in the UK
1.6kg · 3 offers for this selection · sorted by cost per 100g
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