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ALLMAX ISOFLEX Whey Protein Isolate, Chocolate Peanut Butter, 5 lb

Based on 2,103 reviews
Condition: New
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$149.80

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Availability: In Stock.
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Arrives Tuesday, Nov 17
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At a glance

Condition
New
Flavor
Chocolate Peanut Butter
Size
5 lb (Pack of 1)
Model
ALL1001/200/103
Dimensions
12.2 x 8.82 x 20 in
Weight
5 lb
Diet Type
Gluten Free

Features 5

  • Pure Whey Protein Isolate: Ultra-filtered for maximum purity, delivering 27g of fast-absorbing protein per serving (~30g) with no unnecessary ingredients, ideal for clean, effective muscle recovery and growth. Includes 75 servings per container.
  • Clean Fuel for Men & Women: Precisely formulated, this high-protein powder supports pre and post-workout performance, appetite control, and lean body composition; great for fitness enthusiasts, busy professionals, and those following a low-carb lifestyle.
  • Low Lactose, Gluten Free, Soy Free & Sugar Free: making it gentle on sensitive stomachs while supporting lean muscle, weight management, and overall wellness.
  • Advanced filtration technology: Created using Hybrid-Ratio Ion-Filtration (HRI), a specialized process designed to isolate high-quality protein while retaining key whey fractions. So your body utilizes more of every gram of protein you consume.

Description

ISOFLEX has set the standard for both taste and quality for the past 20 years. Many professional athletes have relied on ISOFLEX to meet their demanding Protein requirements. ISOFLEX is significantly lower in lactose, fat, sugar and carbs than most whey Protein Isolates on the market today! If you’re looking for the highest quality, fastest absorbing and best tasting Protein, then look no further than ISOFLEX; a Truly Superior Whey Protein Isolate. ISOFLEX is available in 13 delicious flavors: Chocolate, Chocolate Mint, Chocolate Peanut Butter, Vanilla, Cookies & Cream, Strawberry, Banana, Orange Dreamsicle, Pineapple Coconut, Birthday Cake, Caramel Macchiato, Blueberry Muffin, Lucky Jacked Cereal Video ISOFLEX Whey Isolate ISONATURAL Whey Isolate ISOFLEX Chiller Shot ISOLYFT Isolate+Peptides AllWhey Classic HexaPro Lean Meal CASEIN-FX Slow-Release

Specs 26

Product Dimensions 12.2 x 8.82 x 20 inches; 5 pounds
Item model number ALL1001/200/103
Manufacturer ALLMAX Nutrition
Flavor Chocolate Peanut Butter
Diet Type Gluten Free
Product Benefits Muscle Growth
Protein Source Whey
Protein 2025 g

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Nov 17

This item is non-returnable:

Non-returnable due to Food safety reasons

View our full returns policy here.

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Top Amazon Reviews


GREAT Chocolate Peanut Butter protein!
Flavor Name: Chocolate Peanut Butter Size: 2 Pound (Pack of 1)
This protein powder has quickly become one of my favorites! The Chocolate Peanut Butter flavor is delicious without being overly sweet, and it mixes incredibly well with both water and milk. No clumps or chalky texture; just a smooth, creamy shake every time. I love using it after workouts or as a quick protein boost during busy days. It keeps me full, helps me hit my protein goals, and doesn't leave that heavy feeling that some protein powders do. The quality is excellent, and the taste is honestly one of the best I've tried. If you're looking for a high-quality whey isolate with great flavor and easy mixability, I highly recommend giving this one a try! ... show more
Reviewed in the United States on July 26, 2026 by Alyssa Show

Best tasting protein powder.
Flavor Name: Chocolate Peanut Butter Size: 2 Pound (Pack of 1)
I've tried other products, and this is the best choice for the money. Can't go wrong with the ALLMAX brand.
Reviewed in the United States on September 15, 2026 by Amazon Customer

100% Satisfied!
Flavor Name: Chocolate Peanut Butter Size: 5 Pound (Pack of 1)
Great taste (chocolate peanut butter), mixes well, not chalky. Low fat, 0 cholesterol, low carb, 27 grams of protein. 100% satisfied.
Reviewed in the United States on July 2, 2026 by Team317

Let’s order some more
Flavor Name: Chocolate Peanut Butter Size: 2 Pound (Pack of 1)
Great taste. We enjoy it.
Reviewed in the United States on September 3, 2026 by JOSE L SANCHEZ

Low in calories and high in protein
This protein powder is one of the best, budget friendly and tastes amazing. It’s has multiple flavors that you can choose from. Comes with fast delivery, the jar is bigger than what I was expecting. Smooth and refined, easy to dissolved and digest. I’m definitely gonna buy again. 120 calories and 27g of protein. ... show more
Reviewed in the United States on March 28, 2026 by Shaniellawrence

Good product, but Prop 65 warning
Flavor Name: Chocolate Peanut Butter Size: 5 Pound (Pack of 1)
Man the stats on this protein powder are fantastic. The protein, the fat content. It mixes well. of the about 9 different "similar" protein powders I've tried, this ranks about 4th overall. On flavor its probably more like 5th or 6th place but the nutrition is fantastic. The flavor is OKAY. I was hoping for better. But that's not why it only got 4 stars. I wish they had on the pictures advertising this product more aggressively highlighted the proposition 65 warning for lead. It IS on the packaging and bright but could be more visible. And the advertisement pictures from the seller on amazon, DOES have the warning. But it feels pretty buried as the last picture and also in dark, subdued colors. This is a good product, and likely perfectly safe. And I'll finish every last bit of it and enjoy it even. But I won't buy it again in lieu of non-prop 65 pinging products. ... show more
Reviewed in the United States on March 29, 2026 by chris herrera

Good price & great tasting.
Flavor Name: Chocolate Peanut Butter Size: 5 Pound (Pack of 1)
Good price & great tasting.
Reviewed in the United States on July 23, 2026 by LG

Only protein I trust
Flavor Name: Chocolate Peanut Butter Size: 2 Pound (Pack of 1)
Been using isoflex for over a decade now and it's always done great for me. Flavor easily the best of any proteins I've had.
Reviewed in the United States on June 4, 2026 by T. Osada
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