~ = approximate; — = not reported. Customer stars may cover other sizes or older formulas. Our editorial score out of 100 covers the label, evidence and buying tradeoffs, not how well a supplement will work for you. Cost per serving uses the listed pack and its price on the date shown.
Label clarity: 5/5
Research relevance: 5/5
Safety and cautions: 4/5
Testing and quality checks: 4/5
Value for money: 3/5
Fast verdict: This is a premium 5 g creatine monohydrate with NSF Certified for Sport status, but its raw-material story changed. Momentous now says it manufactures Signature Spec Creatine rather than sourcing Creapure; retailer text can lag. The product remains easy to evaluate as creatine monohydrate, while buyers should verify the current label and decide whether certification and extra testing justify the premium.
Five grams of plain monohydrate closely matches strong strength/power evidence; current Signature Spec is distinguished from the former Creapure formula.
Safety and cautions 4/5
Healthy-adult research is extensive; water-weight/GI changes and kidney or medication concerns still require context.
Testing documentation 4/5
The exact US 450 g product has an NSF Certified for Sport directory record listing all lots.
Value for money 3/5
Ninety servings and a simple formula support comparison; without a matched fresh USD price, no cheapest-product claim is made.
Review basis: We checked published labels and research, plus product-specific quality records when available. We did not lab-test this bottle.
Product labels and independent directory records identify a formula or testing scope. Clinical references concern ingredients or studied regimens unless the explanation explicitly matches the finished formula.
Who Momentous Creatine Monohydrate 450 g may fit
Tested athletes who value NSF Certified for Sport.
People who want plain 5 g creatine monohydrate.
Buyers comfortable with the current Signature Spec raw material.
Readers willing to verify the newest label when retailer text conflicts.
This page is intentionally freshness-focused. Compare it with the Sports Research certified option if certification and price are the main decision.
Who should skip Momentous Creatine Monohydrate 450 g
People specifically shopping for Creapure.
Budget-first buyers who do not need sport certification.
Anyone relying on an older retailer image without checking the received label.
People with kidney disease or medical restrictions.
A formulation-source change is not automatically a quality failure. It is a reason to use the current official label and certification record rather than recycled product copy.
How we reviewed this product
This is a label-based editorial review. We checked the public label, serving size, active amount, current retailer or brand information, named quality signals, ingredient evidence, and recurring public review themes. It is not a hands-on test, lab certificate, or medical recommendation.
The official Momentous help page is treated as the current source for the raw-material change. Any retailer listing that still says Creapure should be considered potentially stale until the received label is checked.
What is in the formula?
Is the current powder still Creapure?
No. Momentous says its Signature Spec powder replaced Creapure in June 2026. The ingredient is still creatine monohydrate, and this 450 g jar still lists 5 g per scoop and 90 servings. An older Creapure photograph does not describe the current supply.
The newer testing claims concern manufacturing and contaminants. They do not show that an equal 5 g amount builds more strength than another well-made monohydrate. Choose by the exact certification, format and delivered price. The chews are a separate product with their own serving instructions; do not count one chew as one powder scoop.
What’s good, what’s not
What looks strong
Strong core formula: 5 g plain creatine monohydrate.
Named sport certification: NSF Certified for Sport is decision-relevant.
Current transparency: the brand publicly explains the raw-material change.
Additional testing claim: PFAS, heavy metals, and microplastics are specifically named.
What may change the decision
Premium cost: more expensive than many certified and generic alternatives.
Listing conflict: retailers may still show older Creapure wording.
No Creapure: a direct mismatch for shoppers who require that raw material.
Red flags before you buy
Check the current bottle and official page instead of relying on an old retailer image.
Do not state that the current product uses Creapure.
Certification does not prove superior performance.
Verify stock and current offer before relying on the schema price.
Compare the price for 90 servings
The 450 g jar contains 90 servings at 5 g. Divide the matching current delivered price by 90 for cost per serving. Check whether the displayed price requires a subscription. No current cheapest-product claim is made; the exact sport-certification record and format are separate reasons to compare this powder.
Is there third-party testing or testing documentation?
NSF Certified for Sport is a strong, named finished-product certification. Momentous also states additional testing for PFAS, heavy metals, and microplastics.
The raw-material change makes freshness part of quality. A transparent current formula is more useful than an outdated premium ingredient claim.
Use-case fit, evidence limits, and safety
NIH ODS supports creatine monohydrate for repeated short, intense activity and identifies it as the most studied form. The 5 g scoop fits that evidence well.
There is no need to argue that Signature Spec is clinically superior to Creapure for the label to be useful. The evidence is primarily about creatine monohydrate.
Safety limits
Water-weight gain and GI effects can occur.
Kidney disease or medical restrictions require individualized advice.
Tested athletes should verify the exact current certification record.
Use the current label if retailer and official ingredient descriptions conflict.
If medicines, pregnancy, surgery, kidney or liver disease, abnormal labs, or multiple supplements are part of the picture, use the supplement interaction checklist and involve a qualified clinician or pharmacist.
Alternatives to compare
Compare current raw material, named certification, package size, and normalized cost.
Alternative to compareThorne Creatine, 450 g