Is it worth buying?
Yes, Dymatize® ISO100® Hydrolyzed Protein Powder - Cookies and Cream™ is worth considering if your priority is a fast-digesting, easy-mixing protein built around 100% whey protein isolate. It delivers 25 grams of protein per serving and is positioned for muscle support before workouts, after workouts, or anytime you want a convenient protein option.
What makes it compelling is the formula itself. This product uses hydrolyzed whey protein isolate, meaning the protein has been partially broken down into smaller proteins and peptides for rapid and easy digestion. For shoppers who care about how quickly a protein fits into their routine, that can be a meaningful advantage.
It also keeps the focus on protein purity. The formula is made with hydrolyzed and whey protein isolates without fillers or added supplements, and it is processed to remove excess carbohydrates, fat, lactose, and cholesterol. If your goal is gaining muscle size and strength and you want a protein powder centered on clean, efficient protein delivery, this is a strong match.
Worth ultimately comes down to fit. If you want indulgent taste, versatile timing, and a formula designed for quick absorption and muscle-building amino acids, this product checks the right boxes.
What you get in each serving
Dymatize® ISO100® Hydrolyzed Protein Powder - Cookies and Cream™ is built for shoppers who want more than just a basic scoop of protein. Each serving provides 25 grams of protein from 100% whey protein isolate, giving you a focused source of muscle-building fuel that supports training goals.
- Hydrolyzed protein: Partially broken down into smaller proteins and peptides for rapid and easy digestion.
- Fast-absorbing formula: Designed for optimal absorption of muscle-building amino acids.
- Easy to mix: Convenient for quick shakes before training, after training, or anytime during the day.
- Purified protein source: Made through a cross-flow microfiltration, multi-step purification process.
That purification process matters because it helps preserve important protein fractions while removing excess carbohydrates, fat, lactose, and cholesterol. The result is a formula centered on protein quality and usability, not unnecessary extras.
Taste also plays a role in consistency. With a Cookies and Cream™ flavor described as great-tasting and indulgent, it is designed to make daily protein intake easier to stick with. When a product combines strong protein content, quick mixing, and a formula made for fast digestion, it becomes easier to use consistently as part of a disciplined training routine.
How to decide if this protein fits your goals
The best way to judge a protein powder is to match it to how you train and how you plan to use it. Dymatize® ISO100® Hydrolyzed Protein Powder - Cookies and Cream™ makes the most sense for shoppers who want a straightforward protein source with flexible timing and a formula described as fast-digesting and fast-absorbing.
- Look at your goal: If you are focused on gaining muscle size and strength, a product with 25 grams of protein and muscle-building amino acids aligns well with that objective.
- Consider digestion and timing: Because the whey protein isolate is hydrolyzed, it is designed for rapid and easy digestion, which can be especially appealing around workouts.
- Think about convenience: This powder is described as easy to mix and suitable before workouts, after workouts, or anytime, making it practical for busy schedules.
- Check formula priorities: If you prefer a protein centered on purified whey isolate without fillers or added supplements, this formula fits that preference.
If those points match what matters most to you, the value is clear. This is not about extra complexity. It is about getting a fast-absorbing protein source that supports consistent training and makes daily nutrition easier to maintain.
Why shop protein at GNC
When you are choosing a protein powder, trust matters. GNC is committed to fueling daily progress with a curated selection of products designed to support real goals, clear routines, and consistent effort. That means focusing on products with purposeful formulations and quality standards that help you shop with confidence.
Dymatize® ISO100® Hydrolyzed Protein Powder - Cookies and Cream™ aligns with that mindset. It is manufactured at GMP Certified facilities, and its ingredients and final products are validated clean and safe. It is also banned substance tested by Informed-Choice, giving active shoppers another layer of confidence in what they are using.
GNC brings together trusted performance nutrition and a disciplined approach to helping you choose the right fuel for your routine. If your goal is to support muscle-building efforts with a fast-digesting whey isolate formula, this is the kind of product that fits a focused, results-driven plan.
Take your performance to the next level with ISO•100. You expect only the best from yourself and your nutrition. DYMATIZE ISO•100® is one of the most advanced and effective proteins available and was developed to give you 100% of what you need to support muscle growth and achieve your ambitions.
The Fastest-Acting Protein. ISO•100 provides 25 grams of super-fast absorbing 100% whey protein isolate and has been hydrolyzed for even faster absorption and digestion. It delivers quick amino acid replenishment, perfect first thing in the morning to stop catabolism or after intense training to speed your recovery. Each serving of ISO•100 has 5.5 grams of BCAAs including 2.7 grams of L-Leucine, the BCAA that is directly involved in optimizing Muscle Protein Synthesis to ensure your workouts are not going to waste.
The Highest Level of Purity. ISO•100 uses only whey proteins derived from cross-flow microfiltration processing (cold-filtered) to preserve the many important whey protein fractions including lactoferrin and immunoglobins, which can be lost in other forms of processing. We have carefully formulated ISO•100 to deliver more of what you want, and less of what you don't want: free of gluten, fat and lactose, plus less than one gram of sugar. With only a short list of ingredients, it is easy to see why ISO•100 is one of the purest proteins available. In addition, ISO•100 is produced in our own GMP manufacturing facility and is Informed-Choice® Trusted by Sport certified providing assurance to the athletic community that ISO•100 is free of banned substances.
New Improved Taste. Dymatize has taken flavor to a whole new level! Our in-house flavor specialists worked long and hard to create an even more delicious taste. ISO•100, the reward you deserve for all your hard work and dedication. So delightfully delicious, you will look forward to the next shake.
YOUR AMBITION. OUR NUTRITION.™ DYMATIZE NUTRITION®
Recent Reviews
About ISO 100® Whey Protein Isolate - Fruity Pebbles? (76 Servings) Rated 5 out of 5 Purchased on Mar 20, 2026 Great tasting! It's my go-to protein shake! Jamshid K Verified Purchaser Apr 13, 2026 Was this helpful? 0 0 Flag Review by Jamshid K has been flagged Flag
About ISO 100® Whey Protein Isolate - Gourmet Chocolate (71 Servings) Rated 5 out of 5 Purchased on Jan 25, 2026 Great product thanks Carlos A Verified Purchaser Feb 16, 2026 Was this helpful? 1 0 Flag Review by Carlos A has been flagged Flag
About ISO 100® Whey Protein Isolate - Gourmet Vanilla (76 Servings) Rated 5 out of 5 Purchased on Jan 11, 2026 Great product, great price ? fast delivery Judy B Verified Purchaser Feb 2, 2026 Was this helpful? 2 1 Flag Review by Judy B has been flagged Flag
About ISO100® Hydrolyzed Protein Powder - Cocoa Pebbles (71 Servings) Rated 5 out of 5 Purchased on Dec 27, 2025 Great Chocolate Flavor Russell S Verified Purchaser Jan 20, 2026 Was this helpful? 1 0 Flag Review by Russell S has been flagged Flag
About ISO 100® Whey Protein Isolate - Fudge Brownie (71 Servings) Rated 5 out of 5 Purchased on Dec 28, 2025 Tastes good WALT W Verified Purchaser Jan 19, 2026 Was this helpful? 1 0 Flag Review by WALT W has been flagged Flag
About ISO 100® Whey Protein Isolate - Gourmet Chocolate (71 Servings) Rated 5 out of 5 Purchased on Nov 28, 2025 Excellent quality Paul M Verified Purchaser Dec 23, 2025 Was this helpful? 1 0 Flag Review by Paul M has been flagged Flag
About ISO 100® Whey Protein Isolate - Fruity Pebbles? (76 Servings) Rated 2 out of 5 Purchased on Oct 19, 2025 Doesn't have much taste resembling fruit pebbles Jason R Verified Purchaser Nov 16, 2025 Was this helpful? 0 0 Flag Review by Jason R has been flagged Flag
About ISO 100® Whey Protein Isolate - Gourmet Chocolate (71 Servings) Rated 5 out of 5 Purchased on Oct 20, 2025 Good product!!! 100% recommended. Sandy R Verified Purchaser Nov 11, 2025 Was this helpful? 0 0 Flag Review by Sandy R has been flagged Flag
About ISO 100® Whey Protein Isolate - Gourmet Vanilla (76 Servings) Rated 5 out of 5 Purchased on Jun 25, 2025 Muito bom, eu gosto Edson Q Verified Purchaser Oct 22, 2025 Was this helpful? 0 0 Flag Review by Edson Q has been flagged Flag
About ISO 100® Whey Protein Isolate - Gourmet Chocolate (71 Servings) Rated 5 out of 5 Purchased on Sep 14, 2025 Great product Roger R Verified Purchaser Oct 10, 2025 Was this helpful? 1 1 Flag Review by Roger R has been flagged Flag
About ISO 100® Whey Protein Isolate - Gourmet Chocolate (71 Servings) Rated 5 out of 5 Purchased on Sep 17, 2025 Awesome product Daniel B Verified Purchaser Oct 9, 2025 Was this helpful? 1 0 Flag Review by Daniel B has been flagged Flag
About ISO 100® Whey Protein Isolate - Gourmet Vanilla (76 Servings) Rated 5 out of 5 Purchased on Aug 10, 2025 love the taste!! Dana K Verified Purchaser Sep 2, 2025 Was this helpful? 0 0 Flag Review by Dana K has been flagged Flag
About ISO100 Hydrolyzed - Cocoa Pebbles (43 Servings) Rated 5 out of 5 Purchased on May 29, 2025 Mixes easily + great taste! Sierra B Verified Purchaser Jun 20, 2025 Was this helpful? 1 0 Flag Review by Sierra B has been flagged Flag
About ISO 100® Whey Protein Isolate - Gourmet Chocolate (71 Servings) Rated 5 out of 5 Purchased on May 27, 2025 Great taste, mix well in water or milk Gyula B Verified Purchaser Jun 19, 2025 Was this helpful? 2 0 Flag Review by Gyula B has been flagged Flag
About ISO 100® Whey Protein Isolate - Fudge Brownie (71 Servings) Rated 5 out of 5 Purchased on Apr 29, 2025 Very cool ???????? Kseniia K Verified Purchaser May 28, 2025 Was this helpful? 0 0 Flag Review by Kseniia K has been flagged Flag
About ISO 100® Whey Protein Isolate - Fudge Brownie (71 Servings) Rated 5 out of 5 Purchased on Apr 25, 2025 One of the best team I had experience Vazha D Verified Purchaser May 17, 2025 Was this helpful? 0 0 Flag Review by Vazha D has been flagged Flag
About ISO100® Hydrolyzed Protein Powder - Cocoa Pebbles (71 Servings) Rated 5 out of 5 Purchased on Apr 13, 2025 Amazing flavor Gamal A Verified Purchaser May 5, 2025 Was this helpful? 0 0 Flag Review by Gamal A has been flagged Flag
About ISO 100® Hydrolyzed Protein - Cinnamon Cereal (20 Servings) Rated 3 out of 5 Purchased on Mar 23, 2025 I really liked the fruity pebbles one and high expectations for this but it doesn't taste like the cereal .. although it was still good Gabriella L Verified Purchaser Apr 17, 2025 Was this helpful? 1 0 Flag Review by Gabriella L has been flagged Flag
About ISO100 Hydrolyzed Whey Protein - Gourmet Chocolate (43 Servings) Rated 5 out of 5 Purchased on Mar 23, 2025 Outstanding-pleasant tasting as well haven k Verified Purchaser Apr 14, 2025 Was this helpful? 0 0 Flag Review by haven k has been flagged Flag
About ISO 100® Whey Protein Isolate - Gourmet Chocolate (71 Servings) Rated 5 out of 5 Purchased on Mar 17, 2025 high quality ingredients Celebrity Eclipse Concierge Ingmar Z Verified Purchaser Apr 12, 2025 Was this helpful? 0 0 Flag Review by Celebrity Eclipse Concierge Ingmar Z has been flagged Flag
About ISO100® Hydrolyzed Protein Powder - Cocoa Pebbles (71 Servings) Rated 5 out of 5 Purchased on Dec 30, 2024 Great product, extremely tasty, love it! George M Verified Purchaser Jan 21, 2025 Was this helpful? 0 0 Flag Review by George M has been flagged Flag
About ISO 100® Whey Protein Isolate - Gourmet Chocolate (71 Servings) Rated 4 out of 5 Purchased on Dec 23, 2024 Like the product, just hard to find multiple different good flavors......... Dave B Verified Purchaser Jan 20, 2025 Was this helpful? 4 5 Flag Review by Dave B has been flagged Flag
About ISO 100® Whey Protein Isolate - Gourmet Chocolate (71 Servings) Rated 5 out of 5 Purchased on Oct 20, 2024 Good product Jesse S Verified Purchaser Nov 11, 2024 Was this helpful? 2 3 Flag Review by Jesse S has been flagged Flag
About ISO100 Hydrolyzed - Cocoa Pebbles (20 Servings) Rated 5 out of 5 Purchased on Sep 29, 2024 Awesome!!! Valentin V Verified Purchaser Oct 23, 2024 Was this helpful? 1 2 Flag Review by Valentin V has been flagged Flag
About ISO 100® Whey Protein Isolate - Fruity Pebbles? (76 Servings) Rated 5 out of 5 Purchased on Sep 3, 2024 This is very good Jeevan A Verified Purchaser Oct 3, 2024 Was this helpful? 1 8 Flag Review by Jeevan A has been flagged Flag
About ISO 100® Whey Protein Isolate - Fruity Pebbles? (76 Servings) Rated 5 out of 5 Purchased on Aug 27, 2024 Great taste. Dissolve 100%, no leftover chunks in the shaker. I do not feel bloated taking it twice daily (2 serving/day). My favorite protein supplement by far. Gyula B Verified Purchaser Sep 21, 2024 Was this helpful? 4 1 Flag Review by Gyula B has been flagged Flag
Chemical taste
About ISO 100® Whey Protein Isolate - Dunkin® Glazed Donut (20 Servings) Rated 1 out of 5 Chemical taste Chemical taste, awful. Leaves gross aftertaste too Alec S Nov 22, 2025 Was this helpful? 1 0 Flag Review by Alec S has been flagged Flag
Great however?.
About ISO100® Hydrolyzed Protein Powder - Cocoa Pebbles (71 Servings) Rated 4 out of 5 Great however?. This is honestly one of the greatest ISO Whey Protein. The flavor is delicious and you don't get that heavy dairy flavor like the cheaper brands. The whey breaks down very easily which is high quality, and the protein contents is true to what it says. The reason why I gave it a "4 star" review was because out of the whole tub you're approximately getting 1/3 of it inside. And if you don't believe me remove the plastic covering. Besides that, a wonderful product. Issac R Oct 20, 2025 Was this helpful? 3 1 Flag Review by Issac R has been flagged Flag
It's ok
About ISO 100® Hydrolyzed Protein - Cinnamon Cereal (20 Servings) Rated 3 out of 5 It's ok Taste more like vanilla Victor F Sep 29, 2025 Was this helpful? 0 0 Flag Review by Victor F has been flagged Flag
Just drink it fast
About ISO 100® Whey Protein Isolate - Fruity Pebbles? (76 Servings) Rated 4 out of 5 Just drink it fast For its purpose it is good. Too much of a fake flavor though Becky Apr 25, 2025 Was this helpful? 1 1 Flag Review by Becky has been flagged Flag
Wrong flavor
Sent me 2 of the same flavors I didn't order.
Goood
Goooooooooood
Another great purchase
I've been using Dymatize for years! The flavor, texture, and ingredients are what makes this a good addition to my supplements. I highly recommend it!
Probably the best flavor
I used to drink protein shakes when they didn't mix, when they tasted like the smell of stagnant water, and gave you super bloat. This ISO100 is probably the best protein I've had to date. You don't even need a shaker bottle to get it perfectly mixed. I did notice that more than 2 scoops in 16floz of water does have a hard time fully mixing. But 2 scoops mixes perfectly in 12floz of water. So basically, mix a max of 2 scoops at a time if you are hand shaking.
Flavor is on point, but too rich for me
Too rich tbh. Still tastes fine, might taste better with milk rather than water. For a better "chocolate" taste I recommend the Coco Pebbles flavor.
Shameful company - please read!
I'm giving this a one star not because of the product but because of the experience I had buying online with GNC. I am in Canada so had to buy online and waited about 2 weeks for delivery. Two tubs cost me almost $250 with the shipping fee. Upon delivery, I received the wrong flavour. I double checked my order and it was correct. I called GNC in the US and was told I had to take it back to a store in my city, leave it with them and then wait 5 days for my refund. A store this big, who was
best protein powder ever. I've blended it with half a banana and unsweetened oat milk + ice, the best I've had
Chef's Kiss: Pump up those taste with Chocolaty Malt Chocolate
Chefs Kiss: The ISO 100 flavors are a perfect blend of smooth mouth watering Vanilla Bean, and the Cocoa Pebbles is a Malt Chocolate lovers dream; both are super-delicious separately or together. I bought both flavors to mix 1/2 and 1/2 for a Vanilla Bean Malt Chocolate Protein Shake. (1/2 scoop Vanilla + 1/2 scoop Cocoa Pebbles = recommended serving; or approximately 38 Grams total). So far there hasn't been any muscle cramping from adding additional protein > 25 Grams/serving