Rule One Clear Whey Isolate protein powder, front of container

Rule One Clear Whey Isolate protein powder, Cherry Limeade flavor

Rule One Clear Whey Isolate protein powder, Blue Raspberry flavor

Rule One Clear Whey Isolate protein powder, Strawberry Lemonade flavor

Roll over image to zoom in Click on image to zoom

Rule One Clear Whey Isolate — 20g Protein, 90 Calories, 300mg Electrolytes

No reviews

Rule One Clear Whey Isolate20 grams of protein at 90 calories, with over 9g of naturally occurring EAAs and 300mg of electrolyte minerals. It mixes clear and drinks like a sports drink rather than a milkshake.Why clear whey exists, and what makes it clearStandard whey is opaque because the protein molecules are large enough to scatter light. Clear whey uses a specially processed whey isolate that stays dissolved and transparent in water instead.The practical result is a completely different drinking experience. A traditional shake is creamy, thick and filling. A clear whey is light, crisp and closer to a cordial or sports drink.That difference matters more than it sounds, for two reasons: Some people simply cannot face a creamy shake — first thing in the morning, in hot weather, or immediately after hard training when a thick drink is the last thing you want. A clear protein solves that It doubles as hydration. With 300mg of electrolytes it works as a drink you sip rather than a shake you get throughThe 300mg of electrolytes is the differentiatorThis is what separates Rule One's version from most clear wheys, and it is a sensible addition rather than a marketing one.Electrolytes — principally sodium, potassium and magnesium — govern fluid balance and are lost through sweat. A protein drink you are already sipping around training is a logical place to put them.It also changes what the product is for. Most protein powders are something you consume; this is something you drink through a session, which is a genuinely different use case.20g rather than 25g — the honest reasonClear wheys almost universally sit at 20g rather than the 25g standard, and there is a reason for it.The specialised isolate that stays clear is more expensive, and there is a limit to how much protein you can dissolve in water while keeping it transparent. Push the concentration higher and it clouds, foams and stops being the product it is meant to be.So 20g is a constraint of the format rather than a corner cut. Worth knowing if you are counting precisely: this delivers 5g less protein than a standard isolate, and at 90 calories rather than 110.Over 9g of EAAs from 20g of protein is a strong ratio, and those are naturally occurring in the whey rather than added — the distinction that separates real protein content from amino spiking.Specs Protein20g, 100% whey isolate Calories90 Carbohydrate1g Fat, sugar, cholesterol0 EAAsOver 9g, naturally occurring Electrolyte minerals300mg GlutenFree FlavoursCherry Limeade, Blue Raspberry, Peach Mango, Strawberry Lemonade Servings20 or 27 AllergenMilkNote: the flavours use artificial flavouring. If you avoid that, our NutraBio Clear Whey Isolate is worth comparing.⚠ Two things people get wrong with clear wheyUse cold water, and do not use milk. Clear whey mixed with milk does not become a creamy shake — it curdles and looks unpleasant. These are formulated for water only.Let the foam settle. Clear wheys foam considerably more than standard protein when shaken, because there is no fat to break the surface tension. Shake it, wait thirty seconds, then drink. Nothing is wrong with it.How our clear proteins compare Rule One Clear Isolate20g / 90 cal300mg electrolytes. Doubles as hydration NutraBio Clear Whey20g / 80 calFull disclosure, anti-spiking arithmetic Phormula-1 Clear22g / 90 calHydrolysed. Needs 14–16oz water Vertical Protein20g / 80 calReady to drink, no mixingRule One is the one to choose if you want the electrolytes — it is the only one of the four built to double as a training drink.How to mix it One scoop into 10 to 12 ounces of cold water. More water than a standard shake — these are meant to be light. Never milk. It will curdle. Let the foam settle for half a minute after shaking. Sip through training, or take it after. Both work, and the electrolytes make the former sensible. Serve very cold. These are considerably better chilled.Who this is for Anyone who finds creamy shakes heavy, especially in hot weather or straight after training People who want protein and hydration in one drink Anyone cutting — 20g of protein for 90 calories with zero fat and sugar People who are lactose sensitive, since isolate removes most of it Anyone who has given up on protein powder because of the texture rather than the taste Sipping through a long session rather than drinking a shake in one goWho this is not forIf you want a filling, dessert-like shake, this is the opposite. A multi-source blend or casein gives you that.If you are counting protein precisely, 20g is 5g below a standard isolate.If you avoid artificial flavouring, check the label.You cannot bake with it or add it to oats. Clear whey is designed to be dissolved in water and behaves badly anywhere else.If you have a milk allergy rather than lactose intolerance, no whey is suitable.If you want maximum protein per pound spent, a standard isolate is better value — the specialised processing here costs more.Stack it with: creatine, which dissolves cleanly and will not cloud it.Frequently asked questionsWhy is it clear?It uses a specially processed whey isolate that stays dissolved in water rather than scattering light the way standard whey does.Why only 20g of protein?There is a limit to how much protein dissolves in water while staying transparent — push it higher and it clouds and foams. 20g is a constraint of the format, not a shortcut.Can I mix it with milk?No. It curdles. Clear wheys are formulated for water only.Why does it foam so much?There is no fat to break the surface tension. Shake it, wait about thirty seconds, then drink.What are the electrolytes for?300mg of electrolyte minerals support fluid balance and replace what is lost in sweat, which makes this usable as a training drink rather than just a protein shake.Is it good for lactose intolerance?Generally yes — it is 100% whey isolate, which is filtered to remove most lactose.Can I bake with it?No. Clear whey is designed to be dissolved in water and does not perform elsewhere.How does it compare to a normal protein shake?Same protein source, completely different experience — light and crisp like a sports drink rather than thick and creamy, at 20g and 90 calories. Read more

Authorized Dealer Rule One Proteins

Flavor: Peach Mango

Variant

Price:

$ 49.99

Quantity:

Every Day Low Pricing Available In Store

Authorized Retailer

Fast Shipping

Real Support If You Need It

PRODUCT LABEL

Rule One Clear Whey Isolate

20 grams of protein at 90 calories, with over 9g of naturally occurring EAAs and 300mg of electrolyte minerals. It mixes clear and drinks like a sports drink rather than a milkshake.

Why clear whey exists, and what makes it clear

Standard whey is opaque because the protein molecules are large enough to scatter light. Clear whey uses a specially processed whey isolate that stays dissolved and transparent in water instead.

The practical result is a completely different drinking experience. A traditional shake is creamy, thick and filling. A clear whey is light, crisp and closer to a cordial or sports drink.

That difference matters more than it sounds, for two reasons:

Some people simply cannot face a creamy shake — first thing in the morning, in hot weather, or immediately after hard training when a thick drink is the last thing you want. A clear protein solves that
It doubles as hydration. With 300mg of electrolytes it works as a drink you sip rather than a shake you get through

The 300mg of electrolytes is the differentiator

This is what separates Rule One's version from most clear wheys, and it is a sensible addition rather than a marketing one.

Electrolytes — principally sodium, potassium and magnesium — govern fluid balance and are lost through sweat. A protein drink you are already sipping around training is a logical place to put them.

It also changes what the product is for. Most protein powders are something you consume; this is something you drink through a session, which is a genuinely different use case.

20g rather than 25g — the honest reason

Clear wheys almost universally sit at 20g rather than the 25g standard, and there is a reason for it.

The specialised isolate that stays clear is more expensive, and there is a limit to how much protein you can dissolve in water while keeping it transparent. Push the concentration higher and it clouds, foams and stops being the product it is meant to be.

So 20g is a constraint of the format rather than a corner cut. Worth knowing if you are counting precisely: this delivers 5g less protein than a standard isolate, and at 90 calories rather than 110.

Over 9g of EAAs from 20g of protein is a strong ratio, and those are naturally occurring in the whey rather than added — the distinction that separates real protein content from amino spiking.

Specs

Protein	20g, 100% whey isolate
Calories	90
Carbohydrate	1g
Fat, sugar, cholesterol	0
EAAs	Over 9g, naturally occurring
Electrolyte minerals	300mg
Gluten	Free
Flavours	Cherry Limeade, Blue Raspberry, Peach Mango, Strawberry Lemonade
Servings	20 or 27
Allergen	Milk

Note: the flavours use artificial flavouring. If you avoid that, our NutraBio Clear Whey Isolate is worth comparing.

⚠ Two things people get wrong with clear whey

Use cold water, and do not use milk. Clear whey mixed with milk does not become a creamy shake — it curdles and looks unpleasant. These are formulated for water only.

Let the foam settle. Clear wheys foam considerably more than standard protein when shaken, because there is no fat to break the surface tension. Shake it, wait thirty seconds, then drink. Nothing is wrong with it.

How our clear proteins compare

Rule One Clear Isolate	20g / 90 cal	300mg electrolytes. Doubles as hydration
NutraBio Clear Whey	20g / 80 cal	Full disclosure, anti-spiking arithmetic
Phormula-1 Clear	22g / 90 cal	Hydrolysed. Needs 14–16oz water
Vertical Protein	20g / 80 cal	Ready to drink, no mixing

Rule One is the one to choose if you want the electrolytes — it is the only one of the four built to double as a training drink.

How to mix it

One scoop into 10 to 12 ounces of cold water. More water than a standard shake — these are meant to be light.
Never milk. It will curdle.
Let the foam settle for half a minute after shaking.
Sip through training, or take it after. Both work, and the electrolytes make the former sensible.
Serve very cold. These are considerably better chilled.

Who this is for

Anyone who finds creamy shakes heavy, especially in hot weather or straight after training
People who want protein and hydration in one drink
Anyone cutting — 20g of protein for 90 calories with zero fat and sugar
People who are lactose sensitive, since isolate removes most of it
Anyone who has given up on protein powder because of the texture rather than the taste
Sipping through a long session rather than drinking a shake in one go

Who this is not for

If you want a filling, dessert-like shake, this is the opposite. A multi-source blend or casein gives you that.

If you are counting protein precisely, 20g is 5g below a standard isolate.

If you avoid artificial flavouring, check the label.

You cannot bake with it or add it to oats. Clear whey is designed to be dissolved in water and behaves badly anywhere else.

If you have a milk allergy rather than lactose intolerance, no whey is suitable.

If you want maximum protein per pound spent, a standard isolate is better value — the specialised processing here costs more.

Stack it with: creatine, which dissolves cleanly and will not cloud it.

Frequently asked questions

Why is it clear?
It uses a specially processed whey isolate that stays dissolved in water rather than scattering light the way standard whey does.

Why only 20g of protein?
There is a limit to how much protein dissolves in water while staying transparent — push it higher and it clouds and foams. 20g is a constraint of the format, not a shortcut.

Can I mix it with milk?
No. It curdles. Clear wheys are formulated for water only.

Why does it foam so much?
There is no fat to break the surface tension. Shake it, wait about thirty seconds, then drink.

What are the electrolytes for?
300mg of electrolyte minerals support fluid balance and replace what is lost in sweat, which makes this usable as a training drink rather than just a protein shake.

Is it good for lactose intolerance?
Generally yes — it is 100% whey isolate, which is filtered to remove most lactose.

Can I bake with it?
No. Clear whey is designed to be dissolved in water and does not perform elsewhere.

How does it compare to a normal protein shake?
Same protein source, completely different experience — light and crisp like a sports drink rather than thick and creamy, at 20g and 90 calories.