Thorne vs Momentous creatine: both NSF, one cheaper

The short answer: Momentous on price, Thorne on paperwork

Two certified jars, one compound, and a decision that comes down to what you want written on the page.

• Momentous is best for buyers who will subscribe. At $32.24 for 90 servings it is about $0.36 a serving, the cheapest NSF Certified for Sport option we have graded, and the page names Eurofins, Light Labs and SuppCo alongside the NSF mark.
• Thorne is best for buyers who want cautions and certification scope in print, and who need the jar in stock this week. Its warnings panel covers allergy, pregnancy, interactions and the New York age restriction, and it quantifies the NSF mark at nearly 300 banned substances.
• Our pick is Momentous on the figures, with one condition: it was out of stock when we checked, so for anyone who needs powder now, Thorne is the practical answer rather than the second-best one.

Side by side: the figures from both product pages

Every line below was read from the two vendor pages on October 12, 2026. Where a row says the page does not state it, that is what we found rather than what we assume.

• Creatine per serving: Thorne 5 g creatine monohydrate / Momentous 5 g creatine monohydrate.
• Other ingredients: Thorne none listed / Momentous none listed.
• Servings per container: Thorne 90, with a 180-serving size also sold / Momentous 90, with 60-serving and 15-pack sizes.
• One-time price: Thorne $44.00 / Momentous $42.99.
• Subscription price: Thorne $39.60, a 10 percent discount / Momentous $32.24, a 25 percent discount.
• Cost per serving, our arithmetic: Thorne about $0.49 one-time and $0.44 subscribed / Momentous about $0.48 and $0.36.
• Sport certification: both NSF Certified for Sport.
• Other named verification: Thorne none beyond NSF / Momentous Eurofins, Light Labs and SuppCo.
• Published test results: neither page shows a certificate of analysis or a numeric purity result.
• Warnings panel: Thorne publishes four items / Momentous publishes none on the product page.
• Stated guarantee: Thorne none on the product page / Momentous a money-back guarantee with no window stated.
• Stock on the day checked: Thorne available / Momentous 90-serving unflavored out of stock, restock given only as soon.
• Vendor-page feedback: Thorne 1,921 reviews / Momentous 4.8 out of 5 from 3,963 reviews, 97 percent would recommend.
• Dose instruction: Thorne one scoop in at least 8 oz, 30 to 90 minutes around exercise / Momentous one scoop in 6 to 8 oz, drunk fresh.

The formula is identical, so this is a comparison of paperwork

There is no formulation argument to have here, and pretending otherwise is how most creatine comparisons go wrong.

Both panels list 5 g of creatine monohydrate and no other ingredients. The International Society of Sports Nutrition position stand calls creatine monohydrate the most effective ergogenic nutritional supplement currently available to athletes, and gives 3 to 5 g a day as the maintenance dose after an optional loading week.

So both products are correctly designed and correctly dosed. No novel salt, buffered form or ester has displaced plain monohydrate in the literature, and neither brand tries to sell one.

That leaves four variables: price, certification, disclosure and service. Everything below is one of those four.

It also means a buyer should be suspicious of any claim that one powder works better. Absorption differences between micronized monohydrate powders are not something either page documents, and neither brand publishes a comparison trial.

Our guide to the supplements with the best evidence explains why creatine is one of the few products where the dose question is settled, which is exactly what makes the price question so visible.

Pricing: Momentous wins once and wins properly on subscription

One-time, the gap is trivial. Subscribed, it is the whole decision.

Thorne lists $44.00 for 90 servings, or $39.60 on a 10 percent subscription. Momentous lists $42.99, or $32.24 on a 25 percent subscription.

Divided by 90 servings, that is about $0.49 against $0.48 one-time, and about $0.44 against $0.36 subscribed. All four figures are our arithmetic from the vendors' own prices.

At one serving a day, the annual cost is roughly $178 for Thorne at list and $174 for Momentous, falling to about $161 and $131 on subscription. The subscription gap is about $30 a year.

Momentous prints $0.35 per serving on its own page, which tracks the subscription price rather than the one-time one. That is a common presentation choice and worth noticing rather than condemning.

Thorne's subscription discount scales if you hold several subscriptions, reaching 20 percent on three or more products, which narrows the gap for anyone already buying multiple Thorne items. Our Momentous Magnesium L-Threonate review covers the equivalent stacking logic on the other side.

Both pages advertise HSA or FSA eligibility, which changes the real cost more than either discount. Neither tells you anything about purity. For the cheap end of the same compound, our budget athlete's stack guide is the counterweight to both of these jars.

Certification: same mark, and only Thorne says what it covers

Both jars carry NSF Certified for Sport, which is the mark most US teams and leagues name, and the pages treat it very differently.

Thorne states that the mark signifies the product has been tested for compliance with label claims and for the absence of nearly 300 substances banned by many major athletic organizations. It also describes screening every ingredient and finished product for identity, purity and potency, including heavy metals, pesticides and microbes.

Momentous describes the mark as verifying that a product contains what the label says and is free from banned substances, without a count.

NSF's own public sport site, read the same day, did not state a banned-substance figure we could quote, so the nearly 300 number is the vendor's and should be read as such.

Where Momentous goes further is in naming additional checks. Eurofins, Light Labs and SuppCo appear on its page as outside verification, which is three more named parties than Thorne lists.

Neither page publishes a result. No certificate of analysis is linked from either product page, which puts a ceiling on what a careful buyer can actually confirm.

For context on how much a seal does and does not promise, our note on what third-party supplement seals actually verify separates the marks that test finished-product potency from the ones that only audit paperwork. The competing scheme, Informed Sport, states it screens every batch before release and warns that one in ten supplements is contaminated with compounds prohibited in sport.

Purity claims: Momentous says far more and proves no more

This is the section where the two pages diverge most, and the louder page does not win it.

Momentous runs a comparison table it calls the Signature Spec Difference. It claims 10 to 100 times fewer impurities than the baseline, heavy metal limits 2 to 5 times tighter than other premium brands, screening for PFAS and microplastics, and purification with reverse-osmosis water rather than chemical rinses.

Every quantitative claim there is a ratio. No baseline is named, no analyte list is given, and no limit in parts per million appears on the page. The claims point in a direction without landing anywhere a buyer can check.

The PFAS and microplastics line is still worth credit, because no US rule requires that screening and no other creatine page in our set mentions it.

The brand also states plainly that it no longer sources from Creapure, and that its Signature Spec creatine is made in a pharmaceutical facility to its own specification. Disclosing a sourcing change in a product FAQ is the honest way to handle one.

Thorne makes almost no purity claims by comparison. It describes a testing process and leans on the NSF mark, which is a smaller promise and an equally unverifiable one.

So the fair reading is that Momentous discloses more process and Thorne discloses less, while both disclose the same amount of evidence: none. We reached the same conclusion auditing premium daily products in Ritual versus AG1.

Warnings: Thorne publishes a panel and Momentous publishes nothing

This is Thorne's clearest win, and it costs a vendor nothing to match.

Thorne's page publishes four items: the product is contraindicated for anyone with a history of hypersensitivity to its ingredients, pregnant users should consult a practitioner, there are no known adverse interactions or contraindications at publication date, and New York law prohibits sale to anyone under eighteen.

That last item is a genuine regulatory fact printed by the seller rather than discovered at checkout. Most creatine pages do not mention it.

We searched the Momentous product page for a warnings, cautions or interactions block on October 12, 2026 and found none. For a product sold to minors' parents as readily as to athletes, that is a real gap.

The underlying safety picture is reassuring either way. A 2025 paper in Frontiers in Nutrition by Kreider and colleagues counts more than 680 peer-reviewed clinical trials with over 12,800 participants and no clinical adverse events reported, and notes creatine appears in roughly 0.0007 percent of adverse event records.

The same paper argues directly that legislation restricting creatine sales to children and adolescents is not based on scientific evidence, which makes Thorne's New York notice an interesting piece of compliance rather than a safety signal.

None of that is medical advice. Kidney disease, pregnancy and prescription medication change the calculation for an individual, and a clinician who knows your history is the right person to ask.

Service, stock and what buyers report on each page

Neither brand does this part well, and they fail in opposite directions.

Thorne states no return window or guarantee on the product page; a returns and exchanges link sits in the site footer instead. Momentous states a money-back guarantee but gives no window or conditions, which is a promise without a shape.

Stock is the decisive practical difference. The Momentous 90-serving unflavored jar showed out of stock on October 12, 2026, with the restock estimate given only as soon. Thorne's 90-serving jar was available the same day.

Subscribing to a product that is not in stock is a weak plan, and the subscription price is the entire reason to choose Momentous.

On feedback, Momentous shows 4.8 out of 5 from 3,963 reviews with 97 percent saying they would recommend it, including about 3,600 five-star ratings and 30 one-star. Thorne shows 1,921 reviews on its page.

Both figures are vendor-hosted, so both brands control which reviews appear. Momentous also publishes a written summary generated from its 100 most recent reviews, which was marked last updated seven months before we read it.

Neither review base contains a performance measurement. The themes are taste, mixability and convenience, which is what you would expect from a tasteless powder. Our account of cutting a $200 supplement month to $40 is a better guide to whether either jar belongs in a cupboard than any star rating.

Choose Thorne if, choose Momentous if

The two lists below are short because the products are nearly identical. Everything that differs is in one of them.

• Choose Thorne if you need it now - its jar was in stock on the day we checked and the Momentous 90-serving unflavored jar was not.
• Choose Thorne if printed cautions matter - allergy, pregnancy, interactions and the New York under-eighteen notice are all on the page.
• Choose Thorne if your sport names a substance count - its page quantifies the NSF mark at nearly 300 banned substances.
• Choose Thorne if you already hold Thorne subscriptions, where the stacked discount reaches 20 percent across three or more products.
• Choose Momentous if you will subscribe - $32.24 for 90 servings is about $0.36 a serving, the cheapest certified figure in our set.
• Choose Momentous if contaminant breadth matters - PFAS and microplastic screening is claimed here and nowhere else we graded.
• Choose Momentous if you want named outside laboratories - Eurofins, Light Labs and SuppCo appear alongside the NSF mark.
• Choose Momentous if a stated guarantee is worth something to you, accepting that no window or condition is published.
• Choose neither if nobody tests you - an uncertified kilogram runs about $0.15 a serving, and our Optimum Nutrition Micronized Creatine review covers the cheapest mainstream middle ground.

Bottom line

On the numbers Momentous is the better buy, and on the page Thorne is the better behaved seller.

Momentous is cheaper at both price points, discloses far more about its testing programme, names three outside laboratories beyond NSF, screens for contaminants no rule requires, and was frank about dropping Creapure.

Thorne costs about $0.01 more per serving one-time and about $0.08 more subscribed, but publishes a complete warnings panel, quantifies what its certificate covers, and had stock.

If you intend to subscribe and can wait for a restock, buy Momentous and accept that its purity table is directional rather than documented. Read the full Momentous creatine review first.

If you need powder this week, want cautions in print, or are spending HSA money through a brand you already use, buy Thorne and accept the slightly worse arithmetic. The full Thorne Creatine review has the detail.

Either way, take 5 g a day consistently, drink enough water, expect a small early weight gain, and remember that the compound in both jars is the same thing a bulk bag sells for about a third of the price.

Grades here reflect labels, pricing pages and published research, never affiliate payouts. Informational only, not medical advice; talk to a clinician before starting, especially with kidney disease, pregnancy or prescription medication.