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Creatine

Klean Creatine

315 g tub, unflavored (SKU KA57692P-315), about 60 servings of 5 g creatine monohydrate

$34.50US price, checked Oct 20, 2026

Plain 5 g creatine scoop that NSF's Certified for Sport database lists

Check price at Klean Athlete Full review →

Creatine

Momentous Creatine

Unflavored 90-serving jar, 15.8 oz (450 g), 5 g creatine monohydrate per scoop

$42.99US price, checked Oct 23, 2026

Plain 5 g creatine with an NSF Certified for Sport listing, raw-material source not stated

Check price at Momentous Full review →

Criterion	Klean Creatine	Momentous Creatine
US price	$34.50Checked Oct 20, 2026 · Price details in the review	$42.99Checked Oct 23, 2026 · Price details in the review
Three-year ownership estimate	$664.14 Planning total.	$566.04 Planning total.
Choose if	You want plain creatine monohydrate from a product in NSF's Certified for Sport database, with lot numbers you can check.	A drug-tested athlete or careful buyer who wants plain creatine monohydrate with a stated 450 g net weight and third-party sport certification.
Main trade-off	Klean's page asks you to log in to add to cart, and returns carry a 15% processing fee plus shipping.	The refund policy generally refuses returns of delivered jars, and the money-back guarantee has no published terms.
Key specifications	Dose per serving: 5 g creatine monohydrate (1 scoop, approximately 5 g) Servings per container: Approximately 60 on Klean's label. NSF's 315 g package at 5 g a serving works out to 63 Price per serving: About $0.58 at the $34.50 retail price and 60 servings Form: Unflavored powder, with Other ingredients: None Certification: NSF Certified for Sport lists two entries for the 315 g unflavored powder, with 2 and 16 certified lots Directions: 1 scoop daily in 8 oz of water or another drink, around exercise or with a meal on rest days Free-of statements: NSF's US entry lists gluten free and GMO free. Its other entry lists artificial flavor, artificial preservative, dairy, GMO, gluten, wheat and soy free Warning: Klean says to consult a health professional if you're pregnant, nursing, have a health condition or take any medication Where to buy: Klean's page lists a retail price but asks for a login to add to cart	Dose per serving: 5 g creatine monohydrate (1 scoop) Servings per container: 90 (15.8 oz / 450 g net weight) Form and source: Unflavored powder. Creatine monohydrate, labeled "(Momentous)". Momentous says it no longer uses Creapure and doesn't state the raw-material source. No other ingredients listed Certification: NSF Certified for Sport. NSF lists the 450 g unflavored powder as creatine/vegan, with 26 lot numbers. A second Momentous entry covers 5 g, 75 g, 150 g and 450 g packages with lot # "All" Directions: 1 scoop daily in 6 to 8 oz of water or another liquid, at any time of day. Momentous says to drink it fresh Testing claims: Momentous describes 6-stage testing, with heavy metals tested and minimized and screening for PFAS and microplastics. The product page gives no results, but the store's certificate of analysis page lists a certificate for each batch Flavor options: Unflavored only, the one option Momentous's store lists for the 90-serving jar Cost per serving: About $0.48 at the $42.99 one-time price. Subscribe & Save works out to about $0.36 a serving on the first delivery and $0.43 after
Exact variant	315 g tub, unflavored (SKU KA57692P-315), about 60 servings of 5 g creatine monohydrate	Unflavored 90-serving jar, 15.8 oz (450 g), 5 g creatine monohydrate per scoop
Dimensions	Not stated by the manufacturer. Klean's page gives approximately 60 servings of one scoop (about 5 g) and no net weight or tub size. NSF's listings give a 315 g package.	The 90-serving jar holds 15.8 oz (450 g) net. Momentous doesn't state the jar's dimensions.
Installation	No installation. Klean says to mix 1 scoop daily with 8 ounces of water or another drink. For best results it suggests a carbohydrate-containing drink or food 30 minutes before exercise, or a recovery drink right after. On rest days it says to take 1 serving daily with a meal.	No installation. Momentous says to mix 1 scoop (5 g) with 6 to 8 oz of water once a day, at any time of day, and to drink it fresh. The store product page says another liquid works too.
Materials	The only ingredient is creatine monohydrate, 5 g a serving, and the label says Other ingredients: None. Klean's page shows icons for gluten free, GMO free, vegan and vegetarian. Klean's page and product sheet don't name the creatine's source or say what the tub is made of. The product sheet says it's manufactured for Klean Athlete, Pittsburgh, Pennsylvania.	The only listed ingredient is creatine monohydrate, which the label marks "(Momentous)". Momentous's FAQ says it no longer sources creatine from Creapure and that its new Signature Spec creatine is made in a pharmaceutical facility. It doesn't name a raw-material source now. The powder is labeled gluten free, GMO free and vegan. Momentous doesn't state what the jar is made of.
Warranty	Not stated by the manufacturer. Klean's return policy says it guarantees quality, purity and potency through the expiration date, but gives no warranty term.	Momentous doesn't state a warranty. The product page advertises a "Money back guarantee" but doesn't give its terms.
Returns	30 days from receipt, with preauthorization and a 15% processing fee plus shipping. Claims of shortage or damage must be made within 7 days of receiving the package. Authorized returns must reach Klean within 14 days of authorization. Returns are credited on receipt, less the 15% fee and the cost of shipping. The policy doesn't say whether an opened tub qualifies.	The store's refund policy says Momentous generally doesn't accept returns of delivered products, except where applicable law requires it. The reason given is that it can no longer guarantee their storage conditions. Original and return shipping aren't refundable unless the law requires otherwise. The policy doesn't mention the "Money back guarantee" on the product page. If you bought from a retailer, returns go back to that retailer.
Unresolved questions	Which NSF entry a given tub's lot number sits in The NSF certification date, which neither entry shows Whether the page's retail price applies to every buyer, since it asks you to log in Whether an opened tub qualifies for return Who makes the creatine and where it comes from Klean's net weight for the tub	The terms of the advertised money-back guarantee, and how it fits with the refund policy Whether the batch certificates cover heavy metals, PFAS and microplastics, and their detection limits Where the creatine comes from How NSF's two Creatine Monohydrate entries relate to each other Jar dimensions and material Warnings and who should avoid it: the product page lists none

These comparisons use published specifications, not head-to-head tests. Prices and terms are dated. Unknown costs are not zero. Check the exact variant before you buy.