NAKED Micronized Creatine Review: Two Tub Sizes, the Dose, and the Research

Reviewing a plain creatine monohydrate powder is an exercise in restraint. There is no flavor system, no blend, no clinical-strength branding, and no proprietary complex to decode. The active ingredient has been studied for decades, and the other products in the category are chemically the same molecule. So the useful questions are narrow and practical: what does the label actually say, how large is a serving, what does it cost per serving at each size, and does anything on the listing go beyond what the research supports?

We deliberately do not repeat the science of creatine from scratch, because we have already written it. Our creatine monohydrate guide covers the mechanism, the strength and muscle evidence, the water-weight question, and loading, and our best creatine roundup compares products. This article is about the specific NAKED tubs.

What You Are Buying

The details below come from two Amazon listings: NAKED Pure Micronized Creatine Monohydrate Powder, 500 g (ASIN B0B9YMNYWK), and NAKED Pure Micronized Creatine Monohydrate, 1,000 g (ASIN B00ULZF5HC). The listing also offers flavored and smaller or larger sizes, which are not covered here.

Two things to note. First, the listing text does not state the weight of the scoop. The 5 g serving is our arithmetic from the stated weight and serving count, and it is consistent between the two sizes, which makes it a reasonable inference. If you want to be sure, weigh a level scoop on a kitchen scale once. Second, the label panel itself was not a field we could read as text, so we are relying on the title, bullets, and ingredient line. The ingredient line says creatine monohydrate and nothing else, and the directions are a single scoop in a glass of liquid, which is about as simple as a supplement gets.

What "Micronized" Does and Does Not Mean

"Micronized" means the creatine powder has been milled to a smaller particle size than standard creatine. The practical effect, which is a claim we are repeating from the listing and have not independently tested, is that it dissolves more easily in water and settles less. Anyone who has stirred standard creatine into water and watched grit sink to the bottom understands the appeal. The listing says the product is "fast dissolving" and uses "rapid absorption" language, adding that it "enhances gains, strength, and increases training capacity."

Here is the line between marketing and evidence. Better dissolving is a plausible and probably true convenience claim. The step from there to "enhances gains" is not something we found support for. We did not find a trial comparing micronized creatine with standard creatine monohydrate for strength or muscle outcomes, and the creatine research we cite below is about creatine monohydrate in general. Creatine is taken up into muscle over days and weeks of consistent intake, and the speed at which the powder dissolves in your glass is not the limiting step. So treat micronizing as a texture feature. It may make the powder easier to drink. It is not a reason to expect better results than any other pure monohydrate.

What the Research Shows

The evidence base for creatine is large, and the best way to describe it is to quote the recent pooled analyses rather than the early hype. Kazeminasab and colleagues (2025) published a systematic review and meta-analysis of randomized trials on strength and power that included 69 studies with 1,937 participants. Compared with placebo, creatine combined with resistance training produced small but statistically significant improvements in bench or chest press strength (weighted mean difference 1.43 kg, p = 0.002), squat strength (5.64 kg, p = 0.001), vertical jump (1.48 cm, p = 0.01), and Wingate peak power (47.81 W, p = 0.004). There were no significant differences in handgrip strength or leg press strength. Subgroup analysis by age showed significant gains in younger adults.

A separate meta-analysis by Wang and colleagues (2024) of 23 studies in adults younger than 50 reported that creatine plus resistance training increased upper-body strength by 4.43 kg and lower-body strength by 11.35 kg compared with placebo (both p < 0.001). It also found something worth stating plainly: men who took creatine with resistance training showed significant gains in both upper and lower body, while the women in the analysis did not. But the sample matters. That analysis included 447 male participants across 20 studies, but only 40 female participants in two studies, plus 9 women in one mixed study of 22 people. The authors reported a trend toward larger lower-body gains with higher doses (p = 0.068). A small number of female participants is a limitation of the evidence, not proof that creatine does not work for women, and the authors framed it as a trend. We note this because "creatine works" is a good summary of the men and a weaker summary of the research on women simply because there is less of it.

The size of the effect is the thing to keep in mind. Kilograms and centimeters of improvement over placebo, over weeks of training, are modest. That is consistent with how creatine has always behaved: it helps you do slightly more work in each hard set, and that adds up across a training block. The International Society of Sports Nutrition position stand (Kreider and colleagues, 2017) describes a large body of evidence that creatine supplementation increases intramuscular creatine and improves high-intensity exercise performance and training adaptations, and it lists possible benefits in recovery, injury prevention, and rehabilitation. Our creatine guide gives the full evidence, and we do not restate it here.

Dose, Loading, and the Serving Size on the Tub

The single most useful fact for buying creatine is that the dose that matters is small and daily. Hultman and colleagues (1996) studied 31 men and found that muscle total creatine increased by about 20 percent after 6 days of 20 g per day, and that this elevated level was maintained by 2 g per day. They also found that a similar but more gradual 20 percent rise occurred over 28 days at 3 g per day, and concluded that 3 g per day is in the long term likely as effective at raising tissue levels as the higher dose. Without any supplementation, the elevated concentration gradually declined and was back to baseline 30 days after stopping.

That gives you two protocols. A loading phase of 20 g per day for about six days raises muscle creatine fastest. A steady 3 g per day gets to the same place in about four weeks. The NAKED label serving of 5 g per scoop sits above the 3 g that the maintenance data support and is the amount most commonly used in practice. There is no evidence in the studies we cite that going above 3 to 5 g per day in the maintenance phase gives more, and the extra is simply the cost of a convenient scoop size. If you want to match the 3 g figure, use about 60 percent of a level scoop, which is fiddly. Most people take the whole scoop and treat the difference as insurance. If you want to load, 20 g per day is four scoops a day for six days, which is 24 scoops, and it is optional. The tradeoff between loading and steady dosing is covered in our guide's loading section.

None of the studies we cite tested time of day, so we make no timing claim. The data are about consistent daily intake. This is why the large tub makes sense for a habit: the evidence is about daily intake over weeks, and a 200-serving tub gets you through more than six months at 5 g a day, or about eleven months at 3 g.

Cost Per Serving for Both Sizes

The price comparison is simple arithmetic, and it is the main thing this review adds. The table below uses the current listing prices and assumes the 5 g serving implied by the weights and serving counts.

The large tub is about 18 percent cheaper per gram. For a year at 5 g per day, that is a difference of roughly $14, and at 3 g per day it is about $9. The reference point for context is our creatine roundup, which compares many brands on the same cost-per-serving basis, and the price of a plain monohydrate in either NAKED size is in the range where creatine is among the cheapest supplements per dose that a lifter buys. The effect is, as above, small but supported. We have not fetched prices for other creatine brands for this review, so we do not claim that these are the cheapest options available.

Which Size Should You Buy

Here is the decision logic. The large tub costs $35.99 up front, which is about 64 percent more than the small tub for exactly twice the creatine. Buying two small tubs costs $43.98 for the same 1,000 g, about $8 more than the large one. So if you will use all of it, the large tub wins on price every time. The cases where the small tub makes sense are practical:

• You are trying creatine for the first time. If you are not sure you will stick with it for a few months, 100 servings is a cheaper trial and removes the sunk-cost pressure.
• You use it at 3 g per day or less. At 3 g, a 500 g tub lasts about 166 days, which is already more than five months, so the small size may be all you need for a while.
• Storage or travel. A 1,000 g tub is bulky, and some people prefer to keep a smaller container in the gym bag.
• Cash flow. A $22 purchase is easier to make than a $36 one, even though it costs more per serving.

The case for the large tub is the opposite: you already know you will take creatine daily, you train year-round, and you would rather reorder twice a year than five times. With the large tub at 5 g per day you reorder about once every 200 days.

Safety, Kidneys, and Lab Tests

Creatine's safety record in healthy people is good, and the ISSN position stand (Kreider and colleagues, 2017) states that short and long-term supplementation, up to 30 g per day for 5 years, is safe and well tolerated in healthy individuals and in a number of patient populations, and that significant health benefits may be provided by ensuring habitual low dietary creatine ingestion of about 3 g per day. The 3 to 5 g you would take from this tub is a fraction of those studied amounts.

The kidney question deserves a direct answer because it is the most common worry. A narrative review of the evidence by Longobardi and colleagues (2023) concluded that although a few case reports and animal studies suggested creatine might impair kidney function, clinical trials with controlled designs do not support that claim. They noted that creatine supplementation may raise serum creatinine for some people, but this does not necessarily indicate kidney dysfunction, because creatine is spontaneously converted into creatinine. Based on studies that assessed kidney function with reliable methods, they concluded that creatine supplements are safe for human consumption. They also stated that further studies in people with pre-existing kidney disease are needed.

The practical consequences follow from that. If you have healthy kidneys, the research does not support a kidney concern at the doses on this label. If you have kidney disease or reduced kidney function, the research has not settled the question, and the right step is to ask your physician before taking it. And if you are going to have blood work done, tell whoever orders it that you take creatine, because a standard creatinine value can come back higher than your kidney function would predict, as the review notes. This article is a research summary, not medical advice.

Quality and Third-Party Testing

Both listings state that the product is NSF Certified for purity and safety, and the large-tub bullets repeat that it is NSF Certified and the highest grade of creatine monohydrate available. The first claim is a product-level claim and, if accurate, a real strength in a category where the product is a single ingredient and the main risk is contamination or mislabeling. We did not look the product up in NSF's public database for this review, so we are reporting what the listing says, not confirming it. "Highest grade available" is a superlative with no standard behind it, and we treat it as marketing. If the certification matters to you, confirm which NSF program the mark refers to and that the certification covers the lot you receive, and ask the company for a certificate of analysis.

One more practical quality check costs nothing. Creatine monohydrate should be a fine white powder with no smell and no flavor. If your tub arrives clumped, discolored, or with an odor, contact the seller. That is a household observation and not a finding from the research.

Who Should Buy It and Who Should Skip It

It makes sense if you lift or train for power, you want a cheap, single-ingredient creatine with a product-level testing claim, you will take it daily, and you do not have kidney disease. For most lifters the large tub is the better buy. The doses on the label are in the range the research supports, and the price per serving is low enough that cost is not a reason to skip.

Skip it, or ask a doctor first, if you have kidney disease or any condition where your physician has restricted supplements. Skip it if you want it to do more than the research says: it helps modestly with strength and power over weeks of training, and it is not a stimulant, a pump ingredient, or a fat burner. And if your training, protein, and sleep are not in order, fix those first, since they matter more than any supplement. Our best creatine roundup is the place to compare this against other brands and forms.

What Buyers Report

Reviews of the unflavored powder on a major retailer's page and on the maker's site are overwhelmingly positive, with a rating of about 4.9 out of 5 across roughly 1,900 ratings on the retailer page. Here is what buyers describe.

• Mixing and taste: Most buyers say it dissolves easily in water, coffee or smoothies, with no clumps and no taste. A couple note the powder is very fine and a bit dusty.
• Purity and value: Buyers like the single-ingredient label, the third-party testing, and the price for the amount in the tub.
• Clumping and packaging: The most common complaints are powder that clumped or hardened, broken seals on arrival, and tubs damaged in shipping. Some buyers say these problems showed up on retailer shipments in particular.
• Other complaints: A few buyers describe a chalky taste or bloating, one reports foreign bits in the powder, and some are unhappy with customer service.

Takeaway: buyers praise how easily it mixes and how plain it is, and the recurring problems are about packaging and clumping rather than the powder itself. Buyer reports are anecdotal and are not the same as the research above; they are not evidence about what a supplement does and not advice.

How HonestLifter Is Reviewing This Product

HonestLifter's editorial model is longitudinal. A one-time first-impressions post tells you very little about a supplement, so the plan for each product is a written research review at the start, followed by dated checkpoint updates at 30 days, 60 days, 90 days, 6 months, and 12 months of use. The checkpoint updates are meant to report real use, real notes, and, where available, real data exports, not recycled research. You can read more in our longitudinal review program article.

This is a research review built on the manufacturer's label, the Amazon listings and published studies. Our own notes will be added as dated checkpoint updates on the schedule below, measured from the first day of use.

Checkpoint sections will be added as our own notes are written, each dated when written.

Checkpoint Update: 30-Day, 60-Day, 90-Day and 6-Month Notes (October 2026)

HonestLifter's owner reports the following from regular use. These are personal notes, not measurements.

• Use: Daily, two large rounded scoops (more than the labeled scoop; grams not measured), mixed into the pre-workout drink and taken before the gym.
• Water retention: None noticed. For context, the owner is lean: about 6 feet tall and 170 pounds for more than two years, at roughly 10 to 12 percent body fat (self-reported). Someone with a different body composition may see something different.
• Blood work: A recent routine panel taken while using creatine at this above-label intake showed blood urea nitrogen of 27 mg/dL and creatinine of 1.46 mg/dL, both flagged high by the lab, with an estimated GFR of 62. There is no blood work from before creatine to compare against, so this says nothing about cause. As the kidney section above explains, creatine can raise serum creatinine without any change in kidney function, and an estimate built from creatinine can read lower than the true value (Longobardi et al., 2023). Anyone with numbers like these should have a clinician interpret them, ideally with the creatine use disclosed. These are one person's self-reported results, not a finding.
• Verdict: Would buy again.

Several supplements are taken together, so none of these notes isolates the effect of this product. The 12-month update will be added when it is written.

The Bottom Line

NAKED Micronized Creatine is plain creatine monohydrate, which is exactly what you should want. The product has one ingredient, a 5 g serving by our arithmetic, a product-level testing claim on the listing, and a low price at either size: about 22 cents per serving in the 500 g tub and about 18 cents in the 1,000 g tub. The research supports 3 to 5 g a day taken consistently, shows small but real gains in strength and power when paired with training, and does not support a kidney concern in healthy people. The micronizing and "rapid absorption" language is convenience and marketing and not a documented performance edge.

Buy the large tub if you will take it daily, and the small one if you are trying it out. Check the certification if it matters to you, tell your doctor if you have kidney issues or are about to have blood work, and watch this page for our dated checkpoint updates.

References

1. Kazeminasab, F., Kerchi, A.B., Sharafifard, F., Zarreh, M., Forbes, S.C., Camera, D.M., et al. (2025). The effects of creatine supplementation on upper- and lower-body strength and power: a systematic review and meta-analysis. Nutrients, 17(17), 2748. doi:10.3390/nu17172748. PMID 40944139.
2. Wang, Z., Qiu, B., Li, R., Han, Y., Petersen, C., Liu, S., et al. (2024). Effects of creatine supplementation and resistance training on muscle strength gains in adults younger than 50 years of age: a systematic review and meta-analysis. Nutrients, 16(21), 3665. doi:10.3390/nu16213665. PMID 39519498.
3. Kreider, R.B., Kalman, D.S., Antonio, J., Ziegenfuss, T.N., Wildman, R., Collins, R., et al. (2017). International society of sports nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. Journal of the International Society of Sports Nutrition, 14, 18. doi:10.1186/s12970-017-0173-z. PMID 28615996.
4. Hultman, E., Soderlund, K., Timmons, J.A., Cederblad, G., & Greenhaff, P.L. (1996). Muscle creatine loading in men. Journal of Applied Physiology, 81(1), 232-237. doi:10.1152/jappl.1996.81.1.232. PMID 8828669.
5. Longobardi, I., Gualano, B., Seguro, A.C., & Roschel, H. (2023). Is it time for a requiem for creatine supplementation-induced kidney failure? A narrative review. Nutrients, 15(6), 1466. doi:10.3390/nu15061466. PMID 36986197.

Product details were taken from the Amazon listings for NAKED Pure Micronized Creatine Monohydrate (500 g and 1,000 g) and may change. HonestLifter carries no affiliate links. This article is educational and is not medical advice.