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Customer reviews for Optimum Nutrition Micronized Creatine Powder, Unflavored, 23.8 oz. for
Optimum Nutrition Micronized Creatine Powder, Unflavored, 23.8 oz.
4.1 out of 5 stars
stars
205 ratings134 reviews
  1. 5 stars63% (130)
  2. 4 stars15% (31)
  3. 3 stars5% (10)
  4. 2 stars4% (8)
  5. 1 star13% (26)

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Showing 1-10 of 134 reviews
Feb 7, 2026
CT
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great deal on a great brand

Creatinine is so underused but is a great supplement supported by vast research. It's also not expensive to produce so I never like that companies mark it up so much. ON is generally a trustworthy brand and this price at Sam's was too good to pass up. I fear it was on clearance though, so I stocked up!

Helpful?61CMFNRKJFYM17797605150
Jun 3, 2026
Tom
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Ridiculous price for High quality product

Not my regular brand, but with Sam's Club's sale price it was irresistible. I went back a second time and bought all I thought I could consume before the expiration date.

Helpful?61CMFNRKJFYM17797605150
Jan 4, 2026
Michael
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

On Nutrition is a great product.

I’ve tried different brands, cannot honestly say there is a big difference if one works better than the other. What I do like better, ON is not actually a powder like the last brand I tried which makes it mix and dissolve better.

Helpful?61CMFNRKJFYM17797605150
Jan 27, 2026
Ryan Niceler
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Creatine

It does what its supposed to do. Doesn't dissolve as much in water as other brands, but does the job

Helpful?61CMFNRKJFYM17797605150
reply from Optimum Nutrition

Try creatine in a juice or smoothie! 🥤

Nov 14, 2025
Guillermo
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Excellent

Product does not include teaspoon. I understand environmental awareness but it could be a different material design (biodegradable) and always offer this to customers.

Review from optimumnutrition.com
Helpful?61CMFNRKJFYM17797605150
reply from Optimum Nutrition

As part of ON's effort to be environmentally conscious and reduce plastic, our Creatine Powder does not come with a scoop. The serving size for this product is one rounded teaspoon. We've shared your feedback for biodegradable options with our internal teams!

Oct 12, 2025
New Here
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Rounded teaspoon?

Not exactly sure what a rounded teaspoon means.. otherwise, I love it.. I can definitely feel a difference in my body when I take it consistently.

Review from optimumnutrition.com
Helpful?61CMFNRKJFYM17797605150
reply from Optimum Nutrition

The serving size for this product is one rounded teaspoon or you may use a food scale for more precision!

Mar 19, 2026
MR
3 out of 5 stars
3 out of 5 stars review

Verified Purchase

Just OK

First time trying creatine but this one does not dissolve completely. Not sure if all creatine is like that or just this brand. Not sure I would purchase again.

Helpful?61CMFNRKJFYM17797605150
reply from Optimum Nutrition

Creatine is a product that does not fully dissolve, so rest assured that this is completely normal. Note that creatine should be consumed immediately upon mixing.

Jan 17, 2026
Joe
3 out of 5 stars
3 out of 5 stars review

Verified Purchase

Great product but doesn’t come with a scooper

Great product but doesn’t come with a scooper

Helpful?61CMFNRKJFYM17797605150
reply from Optimum Nutrition

As part of ON's effort to be environmentally conscious and reduce plastic, our Creatine Powder does not come with a scoop. The serving size for this product is one rounded teaspoon.

Feb 15, 2026
anonymous
1 out of 5 stars
1 out of 5 stars review

Missing 27% of declared NET WT

missing .4 LB from declared net WT. It has tons of room inside container for the product, but it is missing. the packaging was sealed, so it makes me think it comes that way from manufacturer. Now that there is lack of transparency on weight I doubt the quality of the product.

Helpful?61CMFNRKJFYM17797605150
reply from Optimum Nutrition

We are sorry to hear of the experience you’ve had with your purchase. We greatly appreciate you bringing your concern to our attention and would love to hear from you so we may have a chance to resolve this directly with you. We are available M-F 8:30am - 5pm CST and can be reached at oncustsuppus@optimumnutrition.com

Jan 20, 2026
Rosanna
1 out of 5 stars
1 out of 5 stars review

Does not dissolve and gritty

This is not the first time I have used a creatine product so I know what a good product mixes like. This does not dissolve even when using warm liquid and leaves a pile of sludge on the bottom of the glass. If I do physically mix it and take a sip it is gritty. There is so much waste at the bottom. I would like to return this product but we live an hour away so it will be awhile.

Helpful?61CMFNRKJFYM17797605150
reply from Optimum Nutrition

We are sorry to hear of the experience you’ve had with your purchase. We greatly appreciate you bringing your concern to our attention and would love to hear from you so we may have a chance to resolve this directly with you. We are available M-F 8:30am - 5pm CST and can be reached at oncustsuppus@optimumnutrition.com