Types of Creatine Compared: Monohydrate, HCl, Tablets, Gummies

Creatine monohydrate is the form with the trial record. Every other "type" of creatine is either monohydrate in a different package or a chemical variant that costs more and has not consistently worked better. Monohydrate is the form in hundreds of trials, the form behind the authorised UK health claim, the cheapest per gram and, once in your body, close to fully absorbed. The decision that actually matters is format: loose powder, micronised powder, tablets, capsules or gummies. Those differ in convenience, cost and how easy it is to verify the dose, not in what creatine does.

• Monohydrate: the form with the trial record, and the cheapest
• Micronised monohydrate: the same creatine ground finer so it mixes better. Fine, if you like it
• HCl, buffered, ethyl ester, nitrate, chelates: few direct trials against monohydrate, with mixed results
• Tablets and capsules: monohydrate in pill form; count the grams
• Gummies: monohydrate in a chewable format; check the dose per serving and the testing

Why creatine monohydrate is the benchmark

Because it is what the research used. The position stand of the International Society of Sports Nutrition reviews several hundred studies, almost all with monohydrate, and concludes that it is the most extensively studied form.¹ A detailed review of novel forms found that monohydrate is not broken down in digestion and that nearly 99% of what you swallow is either taken into muscle or passed in urine, which leaves little room for any other form to improve on.² It is also the form the UK's authorised performance claim is based on.

Alternative forms are sold on claims of better solubility, better absorption, smaller doses or fewer side effects. For each, the question is the same: has it been compared with monohydrate in people, and did it win? A 2022 systematic review of 17 trials of alternative forms found only three that compared directly with monohydrate, and no consistent performance advantage for any of them, while monohydrate remained the cheapest form on the market.³

Creatine HCl vs monohydrate

Creatine hydrochloride dissolves far better in water, which is true and is the whole basis of its marketing. The claim that follows, that it is therefore absorbed better and works at a fraction of the dose, is not supported in people.

The solubility-to-absorption leap rests mainly on a 2018 rat study and a computer model, whose authors held patents on creatine hydrochloride.⁴ When the two forms were compared in humans, in a 2024 trial of 40 people doing eight weeks of resistance training, both monohydrate and hydrochloride improved strength and muscle size over placebo, and hydrochloride showed no benefit over monohydrate.⁵ One 2026 trial of 40 footballers, all on 5 g a day, found hydrochloride and ethyl ester ahead of monohydrate on sprint, jump and peak-power measures after four weeks; it is a single short trial that did not measure muscle creatine.⁶

Hydrochloride also costs several times more per gram. If a product tells you that 1 g of HCl equals 5 g of monohydrate, ask for the human trial. There is not one.

Buffered creatine

Sold on the idea that raising the pH stops creatine turning into creatinine in the stomach, so you need less and get fewer side effects. A 2012 trial tested exactly this, giving resistance-trained people either monohydrate, buffered creatine at the manufacturer's recommended low dose, or buffered creatine at the same dose as monohydrate, with muscle biopsies.⁷ Buffered creatine did not increase muscle creatine, body composition, strength or anaerobic capacity more than monohydrate, and did not cause fewer side effects. If anything, the low-dose buffered group gained less muscle creatine. Monohydrate survives stomach acid well enough; the problem it claims to solve is small.

Creatine ethyl ester, nitrate, citrate, malate and chelates

Ethyl ester was designed to cross cell membranes more easily; in practice it appears to break down into creatinine faster than monohydrate rather than slower, and the reviews found no advantage over monohydrate,^{2, 3} though the 2026 footballer trial above did. Creatine nitrate pairs creatine with nitrate, a separate compound with its own effects on blood flow, which makes any benefit hard to attribute to the creatine. Citrate and malate are creatine bound to organic acids: more soluble, more expensive, and with no evidence of extra effect. Magnesium-creatine chelate has a couple of small trials and no clear advantage.³ None of these has a safety problem at normal doses; they simply give you less creatine per pound.

Micronised creatine

This is monohydrate milled to a finer particle size. It is not a different compound and does not work differently. It stays suspended in water longer and leaves less grit at the bottom of the glass, which some people value. Absorption is the same, because dissolving in the glass is not the same as dissolving in the gut, where monohydrate is absorbed almost completely regardless.² Pay the small premium if texture bothers you.

Powder vs tablets vs capsules vs gummies

These are the real choices, and they trade convenience against cost and dose certainty.

Two points about gummies. Creatine degrades to creatinine with heat and moisture, and gummy manufacturing involves both, so a gummy can contain less than its label unless the maker has tested the finished product and added an overage.⁸ A direct trial has now shown that gummies which deliver their dose work as powder does.⁹ What to check before buying creatine gummies is here.

The same caution applies in principle to tablets and capsules, which also pass through manufacturing, though they are dry and stable. For all pre-dosed formats, the figure that matters is grams of creatine per serving.

What about creatinine in the tub?

Creatinine is the breakdown product of creatine, the same molecule a kidney blood test measures. It forms slowly in any creatine product during manufacture and storage, faster in heat and moisture and in a hot drink left standing, and it does nothing for you.⁸ Good manufacturers test for it; chemists have recently developed methods specifically to detect creatinine as an impurity in commercial creatine.¹⁰ It is a reason to buy from a maker who publishes testing, and to keep your tub sealed, cool and dry. It is not a reason to buy an exotic form; monohydrate stored properly keeps for years.

Which form should you look for?

Creatine monohydrate, for the reasons above. In a gummy, look for 3,000 mg of creatine monohydrate per serving, the authorised dose, batch-tested by an independent laboratory with an overage so the dose holds to the end of shelf life. In a powder, plain creatine monohydrate at 3 to 5 g per scoop is what the trials used. Direct comparisons with monohydrate are few: most found no advantage, and one 40-person trial found two other forms ahead on sprint measures.

What we don't know

• Whether any alternative form has a niche. Hydrochloride's solubility might help the few people who cannot tolerate monohydrate's grit or stomach effects at all, but that has not been tested as a question.
• Human bioavailability figures for each form. The absorption claims rest on animal data and models; head-to-head human pharmacokinetics are rare.
• Shelf-life losses in pre-dosed formats. Measured by individual manufacturers, not surveyed independently.

Frequently asked questions

What is the best type of creatine?

Monohydrate is the best-studied form; the few head-to-head trials have not settled a best one. Choose the format you will take every day. How to take it, step by step, is here.

Are creatine tablets as good as powder?

Yes, if you take enough of them to reach 3 to 5 g. They cost more per gram and need more swallowing; the creatine is the same.

Is micronised creatine better than regular monohydrate?

Better mixed, not better absorbed. Same molecule, same effect.

Does the dose change for other forms?

No proven form lets you take less. Use 3 to 5 g of creatine whatever the form. How much to take is here.

Is all creatine monohydrate the same, and is flavoured creatine bad?

The molecule is the same in every tub. What differs is particle size, moisture, how much has already turned to creatinine in storage, and what else is in the serving.^{2, 8} Flavoured products add sweetener or sugar, and any calories that come with it; the creatine itself is unchanged, so the label's sugar line is the thing to read.

Sources

1. Kreider RB, et al. 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, 2017. PubMed 28615996.
2. Jäger R, Purpura M, Shao A, Inoue T, Kreider RB. Analysis of the efficacy, safety, and regulatory status of novel forms of creatine. Amino Acids, 2011. PubMed 21424716.
3. Fazio C, Elder CL, Harris MM. Efficacy of alternative forms of creatine supplementation on improving performance and body composition in healthy subjects: a systematic review. Journal of Strength and Conditioning Research, 2022. PubMed 36000773.
4. Alraddadi EA, Lillico R, Vennerstrom JL, Lakowski TM, Miller DW. Absolute oral bioavailability of creatine monohydrate in rats: debunking a myth. Pharmaceutics, 2018. PubMed 29518030.
5. Eghbali E, Arazi H, Suzuki K. Supplementing with which form of creatine (hydrochloride or monohydrate) alongside resistance training can have more impacts on anabolic/catabolic hormones, strength and body composition? Physiological Research, 2024. PubMed 39545789.
6. Duan C, Wang Z, Wang Q. Creatine formulations and repeated sprint training: effects on physical and physiological adaptations in soccer players during the short-term preparation phase. Journal of the International Society of Sports Nutrition, 2026. PubMed 42720250.
7. Jagim AR, et al. A buffered form of creatine does not promote greater changes in muscle creatine content, body composition, or training adaptations than creatine monohydrate. Journal of the International Society of Sports Nutrition, 2012. PubMed 22971354.
8. Saiki PY, Sales GM, de Oliveira AN, Catharino RR. Multi-analytical characterization of creatine degradation for dietary supplement safety assessment. Food Research International, 2025. PubMed 41214971.
9. Pereira F, et al. Effects of creatine monohydrate gummies on performance and body composition in female beach volleyball athletes. Journal of Functional Morphology and Kinesiology, 2026. PubMed 41900512.
10. Fleischer CH, et al. Multinuclear solid-state NMR and NMR crystallography of solid forms of creatine and creatinine. Molecular Pharmaceutics, 2026. PubMed 42096280.

This article is general information, not medical advice. If you have a medical condition or take regular medication, check with your GP or pharmacist before starting creatine.