The best creatine monohydrate at a glance
All five products below list creatine monohydrate as the only active ingredient at about 5 g per serving. The differences are price, certification and what each page is willing to put in writing.
- Best overall: Optimum Nutrition Micronized Creatine - near $30 for 120 servings, no sport certificate, stocked everywhere, overall grade 8.8 out of 10.
- Best certified value: NOW Sports Creatine Monohydrate - about $0.21 a serving in the 2.2 pound size, Informed Sport plus Intertek GMP, overall grade 8.7.
- Best on subscription: Momentous Creatine Monohydrate - $32.24 for 90 servings subscribed, about $0.36 each, NSF Certified for Sport, overall grade 8.4.
- Best documented warnings: Thorne Creatine - $44.00 for 90 servings, about $0.49 each, NSF Certified for Sport, overall grade 8.3.
- Cheapest per gram: BulkSupplements Creatine Monohydrate - about $0.15 a serving from the 1 kg bag, no certification, overall grade 7.8.
- Deciding between the two NSF jars? Read Thorne vs Momentous creatine, which is the closest call in the set.
How we graded these
We did not run tests of our own. Grades come from Supplement Facts panels, pricing pages, certification marks and published research, all read on October 12, 2026.
Four things decided the order.
The panel had to be readable. If we could not open a product's Supplement Facts panel on the vendor's own page, with either a normal fetch or a headless browser DOM dump, the product was dropped rather than estimated. That removed two Nutricost listings and one Klean Athlete page from this shortlist, and the reasons are set out further down.
Cost per 5 g serving, not price per tub. Pack sizes in this category range from 100 g to 25 kg, which makes tub prices meaningless. Every figure in this guide is dollars per 5 g serving, calculated by us from the vendor's own price and serving count.
Certification only counts when the mark is on the product page. A brand-level quality statement elsewhere on a website is not the same as an NSF Certified for Sport or Informed Sport mark beside the product you are adding to a basket.
Dosing instructions were graded too. Two labels in this set ask for more than the 3 to 5 g a day the sports nutrition literature supports for maintenance, and that costs them points because it costs buyers money.
Nothing here is medical advice, and nobody on this site swallowed any of these powders. Our method page sets out the four pillars behind every grade, and our guide to the supplements with the best evidence explains why creatine earns a place on the shelf at all.
Why monohydrate, and why 5 g
This is the rare supplement category where the science has stopped moving, which is what makes shopping it so straightforward.
The International Society of Sports Nutrition position stand, published in 2017, calls creatine monohydrate the most effective ergogenic nutritional supplement currently available to athletes. No buffered form, hydrochloride salt or ester has displaced it since.
Its dosing statement is roughly 0.3 g per kilogram of body weight daily for 5 to 7 days as an optional loading phase, followed by 3 to 5 g a day to maintain elevated muscle stores.
Every product in this shortlist lands on 5 g, the top of that maintenance range, which means none of them is dosed wrongly. The loading week is a convenience, not a requirement; it shortens the time to saturation rather than raising the ceiling.
That has a blunt commercial consequence. Once the compound and the dose are identical, a premium price has to be justified by something other than the formula, and in practice there are only two candidates: verification and disclosure.
Strength, power and lean mass are the best-supported outcomes. Cognitive claims appear on several of these pages and rest on a thinner base at 5 g a day, so read those as a maybe rather than a reason to buy.
Best overall: Optimum Nutrition Micronized Creatine
This is the pick for the person who wants to stop thinking about creatine, which describes most buyers.
It is plain micronized creatine monohydrate at the research dose, listed near $30 for 120 servings, which works out around a quarter a serving. That sits between the bulk bags and the certified jars without inheriting the weaknesses of either, and it holds the highest overall grade on our board for this compound.
Why it sits at number one. Nothing below it offers a better combination of price and confidence. The certified options cost more, the bulk bag offers no verification, and this one is on the shelf of most shops without a shipping wait.
The limitation is the missing mark. There is no NSF Certified for Sport or Informed Sport seal, so a drug-tested athlete should drop down one place in this list rather than buy it.
Full detail is in our Optimum Nutrition Micronized Creatine review. If protein rather than creatine is the actual gap in a diet, start with Optimum Nutrition Gold Standard Whey instead.
Best certified value: NOW Sports Creatine Monohydrate
If certification matters to you, this is where the argument ends, because it makes the premium brands hard to defend.
The panel lists creatine monohydrate 5 g (5,000 mg) per 1 1/2 level teaspoons, with Other Ingredients printed as None. Three sizes are sold at about 45, 120 and 200 servings.
At the sale prices read on October 12, 2026, of $11.99, $24.74 and $41.24, that is roughly $0.27, $0.21 and $0.21 a serving by our arithmetic. One serving a day from the large bag costs about $75 a year.
The verification set is the reason it ranks here: an Informed Sport mark, an Intertek GMP Supplement Certification, Non-GMO, Kosher, Halal and a steroid-tested claim. Informed Sport's programme page states that every batch is screened for banned substances before release.
Why it sits at number two. It is certified and still cheap, which no other product here manages. It ranks below the overall pick only because teaspoon dosing is less convenient than a scoop and the on-page review sample is thin at 17.
The label needs light editing. The loading instruction asks for the dose in fruit juice or other sweetened liquid three to four times daily, and the maintenance line permits up to three servings a day. Follow the page's own later sentence instead: beyond 28 days, one serving daily.
Read the full NOW Sports Creatine Monohydrate review for the seals and sizes.
Best on subscription: Momentous Creatine Monohydrate
This is the cheapest NSF Certified for Sport creatine in our set, with a condition attached to the word cheapest.
The panel is 5 g of creatine monohydrate per scoop, 90 servings, no other ingredients. The price is $42.99 one-time or $32.24 on a 25 percent subscription, which is about $0.48 and about $0.36 a serving by our arithmetic.
The page discloses more process than any competitor: NSF Certified for Sport plus named checks at Eurofins, Light Labs and SuppCo, screening for PFAS and microplastics, and purification with reverse-osmosis water instead of chemical rinses.
It also states plainly that Momentous no longer sources from Creapure, which is the honest way to handle a sourcing change and makes older reviews of this product out of date.
Why it sits at number three. On subscription price it beats both other certified options. It ranks below NOW Sports because every purity figure is a ratio with no published baseline, there is no warnings panel on the page at all, and the 90-serving unflavored jar was out of stock when we checked.
Who should skip it. One-time buyers, since about $0.48 a serving loses most of the advantage, and anyone who wants cautions printed on the page.
Full detail is in our Momentous Creatine Monohydrate review, and the head-to-head against Thorne is at Thorne vs Momentous creatine.
Best documented warnings: Thorne Creatine
The most expensive jar here is also the one that tells a buyer the most about what they are taking.
One scoop is 5 g of creatine monohydrate and the ingredient list has one line. The price is $44.00 for 90 servings, or $39.60 on a 10 percent subscription, which is about $0.49 and $0.44 a serving.
It is NSF Certified for Sport, and the page quantifies the mark: compliance with label claims plus the absence of nearly 300 substances banned by many major athletic organizations.
The warnings panel is the differentiator. It publishes an allergy contraindication, a pregnancy instruction, an interaction statement and a notice that New York law prohibits sale to anyone under eighteen.
Why it sits at number four. The arithmetic is simply worse. It costs about $103 a year more than the certified value pick for an identical dose of an identical compound, and it publishes no certificate of analysis to justify the gap.
When it is still the right buy. When your sport names NSF specifically, when you need stock this week, when HSA or FSA money is paying, or when printed cautions are worth real money to you.
Read the full Thorne Creatine review for the dosing and warnings detail.
Cheapest per gram: BulkSupplements Creatine Monohydrate
This is the price floor of the category, and it is included because the floor sets the terms for everything above it.
The serving is 2 teaspoons, about 5 grams, with Other Ingredients printed as None. Prices run from $19.97 for 100 g to $29.97 for 1 kg and $134.97 for 5 kg, which is about $1.00, $0.15 and $0.13 a serving. Pack size matters more than brand here.
The brand answers hard questions on the page. It states the creatine comes from a supplier in China, describes in-house screening including an FTIR purity test, a microbiology test and an ICP-MS heavy metal test for mercury, arsenic, lead and cadmium, and says vetted US-based independent laboratories handle additional work.
Why it sits last despite winning on price. None of those results are published, there is no third-party certificate, the page warns that serving sizes are subject to occasional adjustment, and the printed maintenance dose of about 7 grams is above what the literature supports.
Who it is right for. Anyone who faces no drug testing, will measure 5 g themselves, and has decided that verification is not worth $20 to $120 a year.
Our full BulkSupplements Creatine Monohydrate review sets out exactly what the saving costs.
What certification actually costs per year
Putting the whole shelf in dollars per year is the fastest way to see what is being sold.
At one 5 g serving a day, 365 days, using the prices read on October 12, 2026 and our own arithmetic:
BulkSupplements 1 kg, about $55 a year, no certificate. NOW Sports 2.2 pounds, about $75, Informed Sport. Optimum Nutrition, around $90 at a quarter a serving, no sport certificate. Momentous subscribed, about $131, NSF Certified for Sport. Thorne at list, about $178, NSF Certified for Sport.
So the cheapest certified option costs about $20 a year more than the cheapest uncertified one. The most expensive certified option costs about $123 a year more than that same bulk bag.
That first $20 is the best-value decision on this page.
The next $100 buys brand, packaging, a scoop and in one case a warnings panel. It does not buy a published purity result, because none of the five pages we read publishes one on the product page.
For anyone auditing a whole cupboard rather than one jar, our budget athlete's supplement stack and our account of cutting a $200 supplement month to $40 run the same arithmetic across every shelf.
Also compared, and what we could not read
Three products we wanted in this comparison are not graded, and the reason in each case is that the page would not give us a label.
Nutricost Creatine Monohydrate Powder. We could read a $18.97 regular price, sizes from 300 g to 1 kg, a 5 g per serving line, a third-party tested claim, a GMP facility claim, a 60-day money-back guarantee and a Proposition 65 chemical warning.
What we could not read was the Supplement Facts panel, the other ingredients or the directions, with either a normal page fetch or a headless browser DOM dump, on October 12, 2026. That is a reading failure on our side rather than a missing label on theirs, and it is still a reason not to grade it.
Nutricost Creatine Monohydrate (Creapure). Listed at $42.97 for 500 g or 1 kg, which would be about $0.43 and $0.21 a serving. Both sizes showed as sold out, so there is no current purchase to grade.
Klean Athlete Klean Creatine. An NSF Certified for Sport competitor that returned HTTP 403 to every read attempt, including a headless browser request. No figure from that page is quotable here.
Two more were excluded on the merits rather than access.
Momentous Creatine Chews, 150 count at $49.99 with 1 g per chew, put a 5 g dose at five chews and about $1.67. That is roughly ten times the cost per gram of a bulk bag, and it solves a travel problem rather than a nutrition one.
Creatine HCl, buffered and ester forms are excluded on evidence. The position stand names monohydrate as the most effective form available, and paying more for an alternative salt buys a story. The same logic applies to all-in-one powders that hide a sub-gram creatine dose inside a blend, which is a pattern we described grading AG1 and auditing Ritual versus AG1.
How to choose: five questions before you pay
Work through these in order and the shortlist collapses to one product within a minute.
Does anyone test your urine? If yes, only the certified options qualify, and NOW Sports is the cheapest of them. If no, certification is optional and the price floor is yours.
Will you keep a subscription running? If yes, Momentous at $32.24 for 90 servings is the cheapest certified route. If you buy in bursts, ignore subscription pricing entirely when comparing.
How much powder will you actually get through? One serving a day is 1.8 kg a year. Buying 100 g bags turns a $55 habit into a $365 one, so pack size is the single biggest lever on cost.
Do you want a scoop or a spoon? Teaspoon dosing is cheaper and less precise. If you will not level a spoon honestly, pay for a scooped jar and accept the premium.
Do printed cautions matter to you? Only Thorne and NOW Sports publish them in our set. If you take prescription medication or have a kidney condition, that is not a cosmetic preference.
Our note on what third-party supplement seals actually verify is the right companion read before paying for any logo on this list.
Safety, dosing and what to ask a clinician
Creatine has one of the largest safety literatures of any supplement, and that still does not make it right for every individual.
The International Society of Sports Nutrition position stand describes short and long-term supplementation as safe and well tolerated in healthy individuals, at intakes up to 30 g a day for five years, and finds no compelling evidence of harm to renal function in healthy or clinical populations.
A 2025 paper in Frontiers in Nutrition by Kreider and colleagues counts more than 680 peer-reviewed clinical trials involving over 12,800 participants with no clinical adverse events reported, and notes creatine appears in roughly 0.0007 percent of adverse event records despite decades of mass use.
That same paper argues that legislation restricting creatine sales to children and adolescents is not based on scientific evidence. New York law nonetheless prohibits the sale of these products to anyone under eighteen, a fact one of the labels in this guide prints on its own page.
The practical notes are duller than the policy argument. Expect a small early weight gain from water drawn into muscle. Drink enough fluid. Loose stools and stomach discomfort usually track large single doses rather than 5 g.
None of this is medical advice and nobody on this site is a clinician. Kidney disease, pregnancy, nursing and prescription medication all change the calculation, and two of the labels here name those cases directly.
The questions worth taking to a clinician are specific: does my kidney function make this a bad idea, does it interact with anything I take, and is 5 g a day the right figure for my body weight. If hydration during heavy sweating is the real problem, an electrolyte mix such as LMNT answers a different question from any creatine jar.
Bottom line
Buy Optimum Nutrition Micronized Creatine if you want to stop thinking about this. It hits the research dose, costs around a quarter a serving and is stocked everywhere.
Buy NOW Sports Creatine Monohydrate if you are tested, or if an unverified label bothers you. At about $0.21 a serving, batch-level certification costs roughly $20 a year more than the cheapest bag on the market, which is the best-value line on this page.
Buy Momentous if you will subscribe and want NSF Certified for Sport at about $0.36 a serving, accepting that its purity claims are directional and the jar was out of stock when we checked.
Buy Thorne if your sport names NSF, if HSA money is paying, or if a printed warnings panel is worth about $100 a year to you.
Buy BulkSupplements only if nobody tests you, you will measure 5 g yourself, and you ignore the 7 gram line on the label.
Then do the boring part: 5 g a day, every day, in water, with enough fluid alongside it. Consistency is what the evidence rewards, not timing, flavour or brand.
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.
Last checked October 12, 2026. What changed: first publication of this shortlist, with five products graded and three dropped because their pages could not be read.
Community discussion
Tried any of these tools? Tell us which one worked best for you.