Most supplement sites rank products and never tell you how. Here is the entire method: five criteria you can verify yourself, the math behind every price claim, and the exact rules that decide a winner. If a criterion cannot be checked by a reader, it does not make the list.
The short version: we score every creatine on dose accuracy, third-party certification, price per serving, label transparency, and manufacturer track record. We do not claim laboratory testing we have not done. Products that hide their dose or use proprietary blends are disqualified before scoring starts.
A creatine has one job: deliver 5 grams of creatine monohydrate per serving, honestly labeled, at a fair price. Everything that matters flows from that sentence. So we score five things, all verifiable from the label, the certifying body's database, and the current retail price. Nothing subjective, nothing we cannot show our work on.
Human trials used roughly 3 to 5 grams of creatine monohydrate per day. Our bar is the full 5 g per serving on the label. Products that deliver less, whether underdosed gummies, capsule products that would require swallowing a handful, or "matrix" blends that never state grams, do not make our lists. This is the first cut and the most products fail here.
Anyone can print "tested" on a tub. We only count independent certification bodies, ranked by rigor. NSF Certified for Sport and Informed Choice sit at the top: they test every batch for banned substances and verify the label tells the truth. Manufacturer-only testing claims score lowest, because the manufacturer graded its own homework. Our certification guide explains what each seal actually checks.
We compute price per serving as the current retail price divided by the number of servings, using the serving size on the label. Prices come from Amazon listings, last checked October 6, 2026, and they move, so we tell readers to verify with our cost calculator. The classic trap: a small jar with a low sticker price that costs nearly double per serving. We always show the per-serving math next to the sticker price so the trick is visible.
One ingredient with exact grams disclosed beats a proprietary blend every time. If a label hides behind "creatine matrix" or "performance blend" without stating grams, the product is disqualified before scoring. You cannot verify what a company will not print.
How long the company has made creatine, its standing in the category, and whether its quality claims hold up when checked against certification databases and the public record. Newer brands are not penalized for being new; they are scored on what can be verified today.
Four rules, applied the same way every time:
Rule 1: Disqualification comes first. Proprietary blends, underdosed formats, and labels that will not print exact grams are out before scoring. No exceptions, no matter how popular the product.
Rule 2: Certification sets the tier. Independently certified products compete against each other; uncertified products compete on price and transparency. We never declare an uncertified product "just as good" as a certified one, because the testing is the difference you are paying for.
Rule 3: Price breaks ties, honestly. When two products clear the same bar, the cheaper per-serving option wins. We say so plainly instead of inventing differences.
Rule 4: The verdict names the trade-off. Every recommendation states what you give up. The cheapest pick gives up certification. The certified pick costs double. Readers deserve the trade-off in one sentence, not buried in paragraph twelve.
We do not claim laboratory testing. We have not run products through a lab, and we say so on every comparison page: research-based assessment, not independently lab tested. Our scores come from labels, certification databases, published research, and retail prices, all of which a reader can check.
We do not take sponsored placements. Rankings are not for sale. Affiliate commissions come from Amazon links after the ranking is set, and the same commission structure applies whether we recommend a product or not.
We do not give medical advice. This is supplement information, not health guidance. Talk to your doctor before starting any supplement.
Every comparison on this site links back here: the top 5 for women, Momentous vs Thorne, women over 40, and the budget comparison.