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 to 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 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
Great product thanks
Not your typical Birthday Cake flavour.
Worst taste ever. I had to combine with vanilla powder to be able to finish product. Will not be buying again.
Wrong flavor
Was sent the wrong flavor twice
Wrong flavor
Sent me 2 of the same flavors I didn't order.
Great product, great price ? fast delivery
Best protein
Very smooth with mixing and taste profile is great as well. Super balanced protein
Great Chocolate Flavor
Tastes good
Excellent quality
Spot on Flavor
Great job by Dymatize! Protein is as good as it always is, and the flavor is spot on with the fruity pebbles. It mixes well. Good with water or juice. I tried it with coffee by chance wasn't bad, but wouldn't do it again. lol
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
Unprofessional
I paced my order Nov 28 and still haven't gotten it . Sent out so many emails and yet to get a reply .
Favorite protein
Delicious!! Really works
fair on flavor
It's ok I expected more flavor from it. I dont think I would buy it again
Chemical taste
Chemical taste, awful. Leaves gross aftertaste too
Doesn't have much taste resembling fruit pebbles
Love it.
I feel different right away
Good product!!! 100% recommended.
Excellent protein powder
Hands down best flavor powder ever!!
Never got my order
My birthday cake flavored protein powder never arrived. After waiting over 15 days, I was told part of my order was lost and would be resent only to later get an email saying it was out of stock and I'd get a refund. Very disappointing. First and last time I shop at GNC.
Great service
Great price and fast shipping will purchase again!!!
Would Fully Recommend if Cost isn't an Issue
It's a great flavor and favorite overall. For those with a sweet tooth and are looking for the exact same flavor, you might come up disappointed. If you're made of money, I wouldn't recommend anything else.
No more bloating
Great Taste
Muito bom, eu gosto
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.
Great product
Awesome product
It's ok
Taste more like vanilla
Yummy!
Taste is surprisingly good!
love the taste!!
Great flavor!
Love the flavor, quick and easy yo use
BEST PROTEIN SHAKE!
Definitely my favorite protein shake!! High in protein and low sugar and carbs!!
Weird after taste
The taste isn't for me. Kind of weird after taste too, but both complaints are personal preference.
Great value for money
Love it! One of the best protein powders I have had in a while.
Taste great, works well.
Great taste. Mixes well. No complaints.
Good item. Mixe well
Good taste, easy to mix. Does as promised.
Yummy First Impression
You know a protein powder is good when it is great with just water. First time purchasing from this brand, and I look forward to try more flavors.
best protein powder ever. I've blended it with half a banana and unsweetened oat milk + ice, the best I've had
Goood
Goooooooooood
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.
Awesome product
Very good product and it keep you full whole day
Mixes easily + great taste!
Great taste, mix well in water or milk
ISO100 Peferect
Happy with the product!
You'll fill the efect!!!
Excellent product!!
Not bad
Great taste. The after taste is a little weird but not bad. Mixes well too.
Very cool ????????
One of the best team I had experience
Amazing flavor
Not great
Strong taste of artificial sweetener
Just drink it fast
For its purpose it is good. Too much of a fake flavor though
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
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
Outstanding-pleasant tasting as well
high quality ingredients
Best Protein I've Had in a Long Time!!
Tried a lot of different proteins lately but this one is the one! Tastes just like Cocoa Pebbles! I love everything about this protein!
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.
Will be purchasing again!
My favorite! Easy to drink and mixes up well
Fantastic
Great taste annd easy on the stomach.
Love it
Great flavor, mixed with water or milk.
Sweet and Smooth
Cocoa Pebbles: Blends smooth and taste sweet like the cereal milk that's left over.
10/10
Highly recommend!
Yabadabado!
Fast safe shipping. Wonderful product, taste is great making it easy to drink.
50Grams of Goodness
This flavor has become one of my favorites! I mix two scoops with 16 ounces of sweetened almond milk and enjoy it! Love the sweet taste without ingesting too much sugar and with that serving I end up starting my day with 50+ grams of protein!
Great product, extremely tasty, love it!
Like the product, just hard to find multiple different good flavors.........
Best Tasting Protein Powder
Best Tasting Protein powder Ever. 2 carbs per serving. I cant stand the taste of the Gold standard. Iso flavors are Awesome.
Top Pick
It's been scientifically tested by an outside firm for accuracy in its nutrient claims. The flavor is as close to real as I've tasted many other brands and its ability to blend smoothly in water is better than other brands. I don't feel cheated in buying this product.
Thank you to everyone!!
Good presentation vs price, flavor, quality of components.
Great tasting protein
Stocked up on my favorite protein during Black Friday. Not gritty, good taste, and reasonable price. I just wish they would fill the containers more consistently. Sometimes it's only about halfway, and others it's closer to the top. I've ordered from different places, and it's always been like that, seems like it's just a random draw.
Delicious.
Delicious.
Delicious.
Delicious.
ISO 100
It is not cheap but you get what you pay for. My nephew who is a beast highly recommended it and said GNC had best price. Sold!!
Easy to digest
Easier on my stomach than other protein supplements
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!
Good Stuff
Good taste, mixes well, not grainy. Stir it into oatmeal, plain Greek yogurt, pancake mix?
Good product
Good whey
Good taste but bit on sweeter side,
Best whey
Good taste, mixes well ??
Awesome!!!
Negative score for taste.
The flavor was not that good and the aftertaste was awful. I was able to exchange for gourmet chocolate and fudge brownie!
Quality protein
I am so pleased with this protein. It's so smooth and mixes quickly. The chocolate peanut butter is delicious. The chocolate is good too but sweeter.
This is very good
ISO 100 Review
Great product but expensive.
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.
Great
Best mixing protein powder I've ever used(even though that's like 5-6 others). Flavor is really good. Would buy again.
Top tier protien supplement. Mixes well, tastes great. Mix with peanut butter powder for added protien and make chocolate peanut butter shake!
fruity pebbles flavor is so good. tastes exactly like the milk after eating a bowl of the cereal. has tiny inclusions but you can't feel them like typical ghost protein. 5-6oz of water might be too little for me. it seemed to be a tad bit thicker so around 8oz of water is good for me, especially w flavor too. mixed real easy, didn't taste anything chemically
Tastes like a batch of chemicals. Avoid.
I don't dislike a lot of protein powders but this one actually reminds me why you have to be careful when purchasing a protein powder. At first I thought it was in my head but my wife tried it after me and we both came to the conclusion that you can straight up taste all of the chemicals that they put in there to "make it great". When I'm focusing on my health, I do NOT want to be reminded of the terrible stuff that they put in the powder.
This particular flavor doesn't do it for me
I didn't like this flavor at all, though iso100 is my go to, this particular flavor doesn't do it for me. Thanks to GNC for their amazing customer service as always, they swapped it out for another flavor without any trouble at all.
Flavor is okay but not great. Still a great option.
Good, but not the best vanilla flavor I've had. Great product otherwise. Great macros.
Great flavor with great macros.
Great flavor with great macros. Drink it for breakfast almost every day.
Great flavor
Pretty aight
Excellent flavor and mixes easily
Great flavor
great flavor
great flavor
mixes well with water or milk, good flavor
It does the job
Good taste and doesn't upset my stomach like normal whey.
Great!!!
Great flavor and mixability. Best I've ever used.
Dymatize ISO100 online order
Shipping was on time and the chocolate blends well and has good taste. The cost is high, a little too higher than it should be. I will only buy this product when it's bogo or a significant discount
First time trying this brand and I'm impressed
Mixes very well and the taste is pretty good. Also bought the chocolate but haven't tried that yet.
Good taste and good quality
Love this product
It's the little pleasures in life!
Great flavor, even with just water. It also shakes well in a blender bottle without clumping up or having the grit in the bottom of the shaker after you finish.
Surprised by how tasty this is
So freaking good. I've been enjoying this as a treat, sometimes in the morning after a workout, but also in the afternoons when I'm craving something sweet or before bed so I don't binge on junk. Tastes great with just water. I add 12-16 oz and lots of ice.
Absolute Favorite Protein
Best protein on the market. Great flavor, fast hitting, worth every penny.
Great Product
Been using this brand and ISO for years?.. unfortunately, it is hard to find??. Love the flavor. The ingredients is exactly what I look for.Also what is unfortunate is the price for this product and any Whey Proteins. The price increases over the past year + is ridiculous.
I'm starting to see the gains