
Creamy
ISO KING
Rich, smooth, creamy. After training or whenever a shake fits your day.
2 lb · 27-28 servings · $39.99


SATISFACTION GUARANTEED
MONEY BACK GUARANTEE
EASY RETURNS
MADE IN THE USA
SATISFACTION GUARANTEED
MONEY BACK GUARANTEE
EASY RETURNS
MADE IN THE USA
We are located in Lake Mary Florida and ship everything direct from our HQ.
SATISFACTION GUARANTEED
MONEY BACK GUARANTEE
EASY RETURNS
MADE IN THE USA
SATISFACTION GUARANTEED
MONEY BACK GUARANTEE
EASY RETURNS
MADE IN THE USA

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Powered by CellOnePro™
25 g of complete protein in every scoop, from CellOnePro™, a new kind of protein made by fermentation. Creamy like the shake you know. Made without a drop of whey.
Saccharomyces cerevisiae, the yeast behind CellOnePro™

Saccharomyces cerevisiae, the yeast behind CellOnePro™
8x Mr. Olympia. Proprietary, patent-pending CellOnePro™. Made in the USA. Since 2011.
The CellOnePro™ story
Everybody wants more protein, and whey keeps getting harder to source and more expensive. Some brands answered with compromise. We went looking for a better way.
We set three rules: quality, flavor, fair price. Many options passed one or two. We kept looking until one passed all three.
Ancient biology. Modern technology.The future of protein.

Where protein comes from

Milk, eggs, meat. The classic sources, tied to farms and herds, and to the dairy supply.

Soy, peas, rice. Extracted from crops, tied to fields and harvests.

Protein-rich yeast, cultivated under controlled conditions and grown by fermentation. Not dependent on dairy production or agricultural harvests. This is CellOnePro™.
No dairy farm. No crop field. A controlled fermentation.

Ancient biology
CellOnePro™ starts with Saccharomyces cerevisiae, the same species of yeast people have used for thousands of years to bake bread and brew. It is not ordinary baker's yeast: controlled fermentation and advanced processing turn it into a concentrated, high-quality protein.
How CellOnePro™ is made

Selected Saccharomyces cerevisiae yeast is cultivated in a carefully controlled fermentation environment. The yeast grows and produces cellular material naturally rich in protein and amino acids.

Advanced processing opens and breaks down the yeast's cellular structure, making the protein inside accessible for extraction and refinement.

Specialized separation and purification remove unwanted non-protein components and concentrate the valuable protein fraction.

The protein is tailored to its job. For ISO KING, a grade built for smooth, creamy shakes. For ISO KING CLEAR, an extra step of hydrolysis breaks it into smaller peptides for a clear drink.
The result: a highly refined, animal-free protein, complete with all nine essential amino acids.
Not whey.Not plants.Not ordinary baker's yeast.
CellOnePro™ is proprietary, patent-pending protein technology. It is not ordinary baker's yeast: it is a sophisticated protein ingredient produced through controlled fermentation and advanced processing, a highly refined, animal-free complete protein. ISO KING and ISO KING CLEAR are the first Ronnie Coleman Signature Series products powered by it.
What's in the scoop
Proteins are built from amino acids, and nine of them are essential: your body cannot make them in sufficient amounts, so they have to come from food. A complete protein delivers all nine. Every scoop of ISO KING does, without depending on dairy.
Three of the nine, leucine, isoleucine and valine, are the branched-chain amino acids, or BCAAs. They are part of the nutritional profile athletes look for when they choose a protein, and ISO KING has 5,300 mg per scoop.
Total EAAs 11,830 mgTotal BCAAs 5,300 mg
120-130 caloriesunder 1 g sugar per scoop

Next-generation, complete protein derived from Saccharomyces cerevisiae, providing all 9 essential amino acids to support muscle growth, repair, and recovery.
ISO KING uses a CellOnePro™ protein grade selected for traditional shakes, where body, texture and mouthfeel matter.
Experience the future of protein! ISO KING delivers high-quality, complete protein to support muscle growth and recovery without whey, dairy, or lactose.
Five flavors
Same 25 g of complete protein in every flavor. Choose one and we set it in the order box for you.

Warm cinnamon-sugar churro flavor. A dessert-style shake after training, or blended with milk and ice.

Rich, deep chocolate made with real cocoa powder. The classic post-workout shake, and great blended with milk or banana.

Smooth coffee-house latte flavor made with real instant coffee. Your morning coffee and your protein in one shake.

Roasted peanut flavor made with real peanut powder. Great on its own, or blended with banana and milk.
Contains peanut

Sweet vanilla cake pop flavor, like a frosted birthday treat. Smooth on its own, and an easy base for smoothies.
Your day, your shake






Ronnie Coleman Signature Series
8x Mr. Olympia, 1998 to 2005. He put his name on Ronnie Coleman Signature Series in 2011 to make supplements for people who actually train. ISO KING is the first protein in the line built on CellOnePro™.
Earned, not claimed.Yeah Buddy!



How to use
Adjust the water to the thickness you like. Enjoy after training or whenever a shake fits your day, alongside a balanced diet and exercise.

1 scoop.

8 oz of cold water.

Shake 20 to 30 seconds.

Drink up and go.
One technology, two experiences

Creamy
Rich, smooth, creamy. After training or whenever a shake fits your day.
2 lb · 27-28 servings · $39.99

Clear
Light, fruity, refreshing. Made for sipping during training and active moments.
20 servings · $49.99
See ISO KING CLEAR| Feature | ISO KING | ISO KING CLEAR |
|---|---|---|
| Experience | Rich, smooth, creamy | Light, fruity, refreshing |
| Best for | After training or daily | During training and active moments |
| Format | Creamy CellOnePro™ grade | Hydrolyzed clear grade with electrolytes |
| Protein | 25 g, all 9 EAAs | 25 g, all 9 EAAs |
The difference is the experience, not our commitment to quality.
The full label










Other ingredientsSingle Cell Protein Isolate (from Saccharomyces cerevisiae as CellOnePro®), natural and artificial flavors, salt, sucralose, gum blend (xanthan, carrageenan, gum arabic).
Serving Size: 1 Scoop (34g)
Servings Per Container: About 28
| Nutrient | Amount per Serving | % DV |
|---|---|---|
| Calories | 120 | |
| Total Fat | 0.5 g | 1%* |
| Total Carbohydrate | <1 g | <1%* |
| Dietary Fiber | 0 g | 0%* |
| Total Sugars | <1 g | † |
| Protein | 25 g | 50%* |
| Iron | 0 mg | 0% |
| Sodium | 275 mg | 12% |
| Potassium | 50 mg | 1% |
| Single Cell Protein Isolate | 25 g | † |
* Percent Daily Values are based on a 2000 calorie diet
† Daily Value not established
Made in the USA with worldwide ingredients. · Must be 18 years of age or older to purchase and/or use this product. · *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent disease.
The offer
Brand new for 2026. Be one of the first to try it.30-day returns · Made in the USA

Consumers should not have to choose between nutritional quality and a product they genuinely enjoy drinking.
CellOnePro™ is proprietary, patent-pending single cell protein technology. It starts with Saccharomyces cerevisiae, a protein-rich yeast, cultivated in a controlled fermentation. Advanced processing opens the cells, separates and concentrates the protein, and refines it for its job. The result is a highly refined, animal-free protein with all nine essential amino acids.
Most protein powders are made from milk (whey) or from plants such as soy, peas and rice. ISO KING comes from a third source: single cells. Its protein, CellOnePro™, is grown by fermentation, so it does not depend on dairy production or agricultural harvests. You still get what you expect from a shake: 25 g of complete protein, a creamy texture and rich, familiar flavors.
No. ISO KING is made with CellOnePro™, a single cell protein isolate from yeast (Saccharomyces cerevisiae), grown by controlled fermentation. It is not whey and not from milk, and it is lactose free.
No. CellOnePro™ starts with the same species of yeast people have used for thousands of years to bake bread and brew, but it is not ordinary baker's yeast. It is a sophisticated protein ingredient: controlled fermentation and advanced processing turn it into a concentrated, high-quality protein.
Both are powered by CellOnePro™ and give you 25 g of protein with all nine essential amino acids per serving. ISO KING uses a grade selected for creamy shakes, for after training or any time of day. ISO KING CLEAR uses a hydrolyzed grade with added electrolytes for a light, fruity drink you can sip while you train. The difference is the experience, not our commitment to quality.
It was built to. ISO KING uses a CellOnePro™ grade selected for traditional shakes, where body, texture and mouthfeel matter, in five rich, familiar flavors: Churro Sticks, Chocolate Chunk, Light Weight Latte, Aint Nothin but a Peanut and Vanilla Cake Pop.
Whenever a shake fits your day: after training, with breakfast or between meals. Use it as part of a balanced diet and exercise program.
Yes. ISO KING is made for everyday versatility: post-workout shakes, daily protein and smoothies. Blend one scoop with your milk, fruit and ice.
Add 1 scoop to 8 oz of cold water in a shaker bottle and shake for 20-30 seconds. The steps are in How to use above.
The 2 lb tub ($39.99) holds 27 to 28 servings, depending on the flavor, and is an easy way to try a flavor. The 5 lb tub ($99.99) holds 65 to 69 servings, so you restock less often. Every serving is one scoop with 25 g of protein.
We are located in Lake Mary, Florida and ship everything direct from our HQ.
Read the label of your flavor before use. Aint Nothin but a Peanut is made with peanut powder and contains peanut.
Yes. The label lists ISO KING as vegan, lactose free and cholesterol free.
Adults who train and want more complete protein in their day, including people looking for a dairy-free protein. You must be 18 years of age or older to purchase and/or use this product.
Some products may contain stimulants and some may not. Please review the product label and supplement facts panel before use.
You must be 18 years of age or older to purchase and/or use this product.
Please follow the directions on the product label. Do not exceed the recommended serving size unless advised by a qualified healthcare professional.