Best Clear Whey Protein UK: 4 Top Picks Compared

Clear whey protein has become one of the most popular ways to hit your protein target without drinking a thick, milky shake. Instead it mixes into a light, fruity drink that looks and tastes closer to a cordial or juice, which a lot of people find far easier to get down after a workout or on a warm day. It is still whey protein isolate, so you get the same muscle-supporting amino acids, just in a more refreshing format.

Below are our four favourite clear whey proteins available in the UK right now, ranked and compared on protein content, flavour, calories and price. We have picked options across different budgets so there should be one to suit you, whether you want the cheapest decent tub or a premium powder with a huge flavour range.

1. Myprotein Clear Whey Isolate: Best Overall

Myprotein Clear Whey Isolate is the product most people mean when they talk about clear whey, and it remains our top pick on the balance of price, flavour choice and availability. Each serving gives you 20g of whey protein isolate plus around 4g of BCAAs and 3g of glutamine, with roughly 90 calories, almost no fat and under 1g of carbs. The flavour list is enormous (think Lemonade, Peach Tea, Orange and Mango, Watermelon and many more), so it is easy to find one you actually enjoy.

It suits almost anyone who wants a light, juice-style protein drink without paying a premium, particularly if you like rotating flavours. The honest downside is mixing: it foams up a lot when you first shake it, so you need to wait a few minutes for it to settle, and the texture is thinner than some rivals. It is also pricier per gram of protein than Myprotein's standard Impact Whey, which is normal for clear whey across the board.

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2. ESN Isoclear Whey Isolate: Best Premium

ESN Isoclear is our premium pick, and the nutrition profile is what earns it the spot. It packs up to 25.5g of protein per serving with almost no sugar and no fat, it is lactose free, and ESN quotes an amino acid profile of 48.9% EAAs and 22.7% BCAAs. The 1000g tub works out at 33 servings, and the fruity flavours (Green Apple, Fresh Cherry, Lemon Iced Tea and Strawberry Lime among them) mix into a light, clear drink rather than anything creamy.

It is a good fit if a lactose-free formula and a clean, fruity taste matter to you and you do not mind paying a bit more. The main downside is exactly that: it is one of the pricier tubs here upfront, and the price swings a fair bit by flavour, with Green Apple usually the value option and several of the others costing noticeably more, so it is worth comparing a few before you add to basket. It is produced in ESN's own facilities in Germany, which adds some reassurance on consistency.

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3. Applied Nutrition Clear Whey Isolate: Best for Flavour Range

Applied Nutrition Clear Whey Isolate is a well-liked British option with a big tub (875g, around 35 servings) and a fruit-juice style flavour range that includes Strawberry and Raspberry, Cherry and Apple, Watermelon and Orange Squash. Each serving delivers over 21g of protein with about 90 calories, 1g of carbs and very little sugar or fat. It is also Informed Sport tested, which independently screens each batch against the WADA banned substance list, so it is a sensible choice for anyone who competes in tested sport.

It works well for people who want a big tub of a recognised brand with plenty of flavours to keep things interesting. The honest downside is consistency: some owners report that taste and mixability can vary between batches and flavours, with the odd one tasting slightly artificial. Stick to the popular flavours and most people are happy.

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4. Bulk Clear Whey Isolate: Best Budget

Bulk Clear Whey Isolate is our budget pick, a fruity clear protein from a popular UK brand that often works out cheaper per serving, especially in larger sizes or during Bulk's frequent sales. You get 20g of hydrolysed whey protein isolate per serving for around 86 calories, with no added sugar, in summery flavours like Apple and Blackcurrant, Orange and Mango and Cherry Bomb. As a hydrolysed isolate it is designed to mix and digest easily, which owners tend to back up.

It is a solid choice if you want a no-fuss clear whey at the lowest sensible price without dropping to an unknown brand. The downside is that the flavour range is narrower than ESN or Applied Nutrition, and some owners find a couple of the flavours a touch weaker than the punchier rivals. For the money, though, it does the job well.

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Which clear whey protein should you buy?

All four of these are genuinely good, and the right one mostly comes down to taste preference and budget. Here is the quick summary:

• Best overall: Myprotein Clear Whey Isolate wins on the all-round balance of price, huge flavour choice and easy availability. Just be ready to let the foam settle.
• Best premium: ESN Isoclear is the one to get if taste is your priority, with up to 25.5g of protein, a lactose-free formula and a clean, squash-like flavour.
• Best for flavour range: Applied Nutrition Clear Whey Isolate offers a big tub, plenty of flavours and Informed Sport testing, ideal if you want variety from a UK brand.
• Best budget: Bulk Clear Whey Isolate gives you a reliable, easy-mixing clear whey at the lowest sensible price.

Remember that clear whey is a food supplement, not a replacement for a balanced diet. The evidence for protein supplements is genuinely good: a meta-analysis pooling 49 studies and 1,863 participants found that protein supplementation significantly increased gains in muscle size and strength during resistance training (Morton et al., 2018). The same analysis found no further gain in fat-free mass once total protein intake passed roughly 1.6g per kilo of bodyweight a day, which is the useful bit for most people: a shake helps you reach that target, but it works best alongside real food and regular training rather than on its own.

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