Skip to product information
R1 Protein Whey Isolate 100% Whey Isolate
  • R1 Protein Whey Isolate 100% Whey Isolate
  • Front of a black protein powder tub with an orange stripe and brand logo
  • Black and orange container of Rule 1 Protein Whey Isolate in Milk Chocolate flavor 80 2 oz
  • Black protein powder tub with an orange label The label reads R1 Protein Whey Isolate Vanilla Crème
  • Black and orange container of Rule 1 Protein Whey Isolate in Cookies Creme flavor 79 4 oz
  • Large black tub of protein powder with an orange label displaying RULE 1 WHEY ISOLATE and nutritional facts
  • Black and orange container of Rule 1 Protein Whey Isolate in Chocolate Peanut Butter flavor 80 2 oz
  • Black protein powder container with a black lid and an orange and white label displaying Birthday Cake flavor details
  • Black plastic tub with orange label and Punky Patches graphic Contains R1 Protein Whey Isolate
  • Front of a black protein powder tub with an orange band showing WHEY ISOLATE and Strawberries Crème
  • Black and orange container of Rule 1 Protein Whey Isolate in Mint Chocolate Chip flavor 80 1 oz
  • Front of a black protein powder tub with an orange stripe and brand logo
  • Black tub of protein powder with an orange and white label Flavor is Strawberry Banana
  • Front of a black protein powder tub with an orange band and the text WHEY ISOLATE
  • Front of a black protein powder tub with an orange stripe and brand logo
  • Black tub of protein powder with an orange and white label Flavor is Vanilla Butter Cake

"The cleanest isolate I have ever used. Recovery is faster and there is zero bloating after heavy sessions."

Mark S., Competitive Athlete

25g

Protein per scoop

0g

Fats and Sugars

100%

Whey Isolate

Fueling cleaner performance through transparent sourcing.

R1 Protein Whey Isolate 100% Whey Isolate

R1 Protein Whey Isolate 100% Whey Isolate

Stop wasting workouts with slow proteins. Get 100% pure isolate for instant repair.

$69.99 $134.99 -48%
One 5lb tub provides over 70 post-workout servings
  • Rapid muscle amino acid delivery
  • Zero bloating or digestive discomfort
  • Maximum protein-to-calorie efficiency
  • Perfect for lean muscle maintenance
🔥 BUY MORE, SAVE MORE — UNLOCK FREE GIFTS!
High demand: Limited stock available
Free shipping on orders over $75 · 30-day quality guarantee
  • Ultra Pure No whey concentrates
  • Rapid Repair Hydrolyzed for speed
  • Clean Macros Zero sugar or fat
  • Easy Mixing No clumps or grit

Order in the next 23 Hrs. 42 Min. to start your recovery by

Ordered Today
Shipped
Delivered
Why It Wins

R1 Protein Whey Isolate is made with super-pure whey isolate, fast-acting partially hydrolyzed whey isolate, and virtually nothing else. This elite formula completely omits the use of whey protein concentrates, creamers, amino spiking, banned substances, and other things that dilute what you really came for – protein. Even better, it tastes great too.

The Formula

R1 Protein uses a combination of cross-flow microfiltered whey isolate and hydrolyzed whey isolate for the fastest possible absorption.

Shipping

Tracked shipping available worldwide.

R1 Protein Whey Isolate 100% Whey Isolate

R1 Protein Whey Isolate 100% Whey Isolate

Regular price  $134.99
Sale price  $69.99 SAVE 48%
Three steps to instant recovery
Maximize your anabolic window with rapid protein delivery.
Mix

Mix

Add one rounded scoop of R1 Protein Whey Isolate to 6-8 oz of cold water or your favorite beverage.

Shake

Shake

Shake or stir for 30 seconds until the ultra-fine powder is completely dissolved without clumps.

Recover

Recover

Drink immediately after training to flood your muscles with the amino acids they need for repair.

Mix

Mix

Add one rounded scoop of R1 Protein Whey Isolate to 6-8 oz of cold water or your favorite beverage.

Shake

Shake

Shake or stir for 30 seconds until the ultra-fine powder is completely dissolved without clumps.

Recover

Recover

Drink immediately after training to flood your muscles with the amino acids they need for repair.

Why R1 Protein fuels champions
Zero Fillers

We omit all creamers and gums so you get more protein and less digestive stress.

Muscle Sparing

Packed with over 6g of BCAAs to prevent muscle breakdown during intense cuts.

Why R1 Protein fuels champions
Elite Purity

100% Whey Isolate means you aren't paying for cheap concentrates or lactose.

Instantized

Agglomerated particles ensure a smooth mix even with just a spoon and glass.

Data-driven muscle growth
The numbers behind the cleanest isolate on the market.
Front of a black protein powder tub with an orange stripe and brand logo
25g
Pure Isolate
Highest protein yield per scoop for maximum efficiency.
6g+
BCAAs
Naturally occurring aminos to trigger muscle protein synthesis.
0g
Fat/Sugar
Eliminates empty calories so you only build lean mass.
Based on nutritional analysis of R1 Protein Whey Isolate 5lb formula.

Banned Substance Free

Safe for competitive athletes

Zero Amino Spiking

True protein counts only

GMP Certified

Manufactured to elite standards

Global Sourcing

Ethically harvested superfoods
Limited Time Offer

Fuel Your Progress

Save 15% on your first 5lb tub of R1 Protein Whey Isolate today.
00
Hours
00
Mins
00
Secs
CLAIM MY TUB
Front of a black protein powder tub with an orange stripe and brand logo
Black and orange container of Rule 1 Protein Whey Isolate in Milk Chocolate flavor 80 2 oz
Black protein powder tub with an orange label The label reads R1 Protein Whey Isolate Vanilla Crème
Front of a black protein powder tub with an orange stripe and brand logo
Black and orange container of Rule 1 Protein Whey Isolate in Milk Chocolate flavor 80 2 oz
30 DAYS TO FEEL THE DIFFERENCE
If you don't feel faster recovery and see better results, we will give you a full refund. We stand by the purity of our isolate.
TRY IT RISK-FREE
No-Questions-Asked Returns
Quality Purity Guarantee
Athlete-First Support
Black protein powder tub with an orange label The label reads R1 Protein Whey Isolate Vanilla Crème
Black and orange container of Rule 1 Protein Whey Isolate in Cookies Creme flavor 79 4 oz