Creatine GuidesOct 22, 2026

Is Creatine a Steroid? The Real Difference Explained

No, creatine is not a steroid. Here's how creatine and anabolic steroids differ in what they are, how they work, their effects and the law in Australia, plus the real risk athletes should know about.

Man holding a kettlebell in a bright home garage gym

By Roy Anderson, Founder of GUMO · Reviewed by Koji Wang, Physiotherapist · Last updated 23 October 2026

No, creatine is not a steroid. Creatine is a compound your body makes from amino acids and stores in your muscles, and it's also found in meat and fish. Anabolic steroids are synthetic versions of the hormone testosterone. They work differently, they're built differently, and in Australia steroids are illegal without a prescription, while creatine is sold in supermarkets and isn't banned in sport.

It's one of the most common things people say when they see a tub of creatine: "Isn't that a steroid?" The confusion makes sense, because both are linked to gyms and muscle. But the comparison doesn't hold up. Here's how they differ, why the myth sticks around, and the one real risk athletes should know about.

The short version

Creatine is an amino acid compound that helps your muscles recycle energy. Anabolic steroids are synthetic hormones that copy testosterone.
Creatine doesn't raise testosterone in most studies, and it doesn't act on hormone receptors.
The effects aren't in the same league: in one classic trial, high-dose testosterone added about 6kg of lean mass in 10 weeks. Creatine typically adds 1 to 2kg, much of it water.
Creatine isn't prohibited in sport. Anabolic steroids are illegal in Australia without a prescription and banned in sport.
The real risk is contaminated supplements. A Sport Integrity Australia survey found about a third of supplements tested contained banned substances.

Is creatine a steroid?

No. A 2021 review of creatine myths by 11 researchers put it plainly: because creatine has a completely different chemical structure, it is not an anabolic steroid.

Your body makes about half the creatine it needs each day from three amino acids (arginine, glycine and methionine), mainly in the liver and kidneys, and gets the rest from food like meat and fish, according to the International Society of Sports Nutrition. A creatine supplement is more of something your body already uses every day. For the basics, see what is creatine.

Anabolic steroids are a different category altogether. Healthdirect, the Australian Government's health information service, describes them as synthetic, human-made medicines that copy the effects of testosterone. Doctors use them to treat hormone problems or muscle loss.

What's the difference between creatine and steroids?

Almost everything: what they are, how they work, how strong the effect is, and how the law treats them.

	Creatine	Anabolic steroids
What it is	A compound made from amino acids	Synthetic versions of testosterone
Made by your body?	Yes, and found in meat and fish	Testosterone is, but steroids are synthetic drugs
How it works	Helps muscles recycle energy (ATP) during hard efforts	Binds to hormone receptors and switches on muscle-building genes
Effect on testosterone	No change in most studies	Raises it, often far above natural levels
Typical muscle effect	Small, mostly through better training	Large, even without training
Legal in Australia?	Yes, sold as a food supplement	Only with a doctor's prescription
Allowed in sport?	Yes, not on the prohibited list	No, banned

They work in completely different ways

The Antonio review explains the mechanisms. Anabolic steroids enter muscle cells, bind to the androgen receptor and switch on muscle-building genes directly. Creatine is converted to phosphocreatine, which your muscles use to quickly regenerate ATP, the energy molecule behind short, hard efforts like a heavy lift or a sprint.

That means creatine doesn't build muscle by itself. It helps you squeeze out an extra rep or two, and over weeks of training that extra work adds up. Without training, there's little for it to do.

The effects aren't in the same league

Most articles skip the size of the difference, so here it is. In a well-known 1996 trial in the New England Journal of Medicine, 43 men were split into four groups. Those given 600mg of testosterone a week for 10 weeks gained 6.1kg of fat-free mass when they also lifted weights. Even the men who took testosterone and did no exercise at all gained more muscle and strength than men on a placebo who also didn't exercise.

Creatine is much more modest. The Australian Institute of Sport puts the extra body mass from creatine at a maximum of about 1 to 2kg, much of it water stored in the muscles. More on that in does creatine make you gain weight.

Creatine vs anabolic steroids compared: creatine is an amino acid compound that recycles muscle energy, is legal in Australia and allowed in sport, and adds about 1 to 2kg mostly water, while anabolic steroids are synthetic testosterone, prescription only in Australia, banned in sport, and added 6.1kg of lean mass in 10 weeks in one trial

Does creatine raise testosterone?

Not in most studies. Examine counts 12 trials that tested creatine's effect on testosterone: 10 found no effect, and the two that did lasted only six or seven days. The five that measured free testosterone, the active form, found no significant increase.

There's one finding worth being upfront about. A small 2009 study in 20 rugby players found a rise in DHT, a hormone made from testosterone, after a week of high-dose loading. But a 2025 randomised trial found 5g a day for 12 weeks didn't change DHT or testosterone. The full story is in does creatine cause hair loss.

Why do people think creatine is a steroid?

Mostly guilt by association. Creatine is one of the few supplements that measurably improves strength, it's popular with bodybuilders and athletes, and it can make the scales go up a kilo or two in the first few weeks. To someone who doesn't know what it is, that sounds a lot like steroids.

The word "steroid" adds to the confusion. Healthdirect points out that anabolic steroids are different from corticosteroids, the medicines used for asthma or arthritis, but both get called "steroids". Creatine is neither.

I've had this conversation myself. When I first started taking creatine, my parents genuinely thought it was some kind of steroid. Once I explained that it's the same compound found in a steak, just in a more convenient form, they were fine with it. For what it's worth, it never worried me, but I understand why it worries people who've only ever heard the word next to "gym" and "muscle".

Is creatine legal in Australia?

Yes. Creatine is sold over the counter in supplement shops, pharmacies and supermarkets. Anabolic steroids are a different story: Healthdirect says they're illegal in Australia unless a doctor has prescribed them for a medical reason.

Is creatine banned in sport?

No. Sport Integrity Australia confirms that creatine isn't prohibited under the World Anti-Doping Code. Anabolic steroids are banned in all competitive sport. The Australian Institute of Sport also lists creatine in Group A of its sports supplement framework, the top tier for evidence.

The real risk: contaminated supplements

Creatine itself won't make you fail a drug test, but a contaminated supplement could. Sport Integrity Australia notes that, like any supplement, creatine carries a risk of accidental contamination with banned substances. And athletes are strictly liable for anything found in their system, even if it got there by accident.

The risk is real. In a survey commissioned by Sport Integrity Australia, 35% of 200 sports supplements bought online in Australia contained one or more substances banned under the World Anti-Doping Code, and 57% of those didn't list the banned ingredient on the label. Pre-workouts, fat burners and "muscle builders" were the most likely to be contaminated.

If you compete in a drug-tested sport, Sport Integrity Australia's advice is to only use supplements that have been batch tested for banned substances by independent programs such as HASTA or Informed Sport. You can check products in the free Sport Integrity app. For everyone else, a plain creatine monohydrate product from a brand that tests its batches is a safer bet than a "stacked" muscle-builder with a long ingredient list.

Sport Integrity Australia supplement survey: 35% of 200 sports supplements bought online contained substances banned in sport, and 57% of those did not list the banned ingredient on the label

For transparency, here's how GUMO handles it. As well as testing every batch for creatine content, we have our gummies screened for substances banned in sport by ACS Laboratories in Australia. That testing is done directly with the lab rather than through HASTA or Informed Sport, so if you compete in a drug-tested sport, follow Sport Integrity Australia's advice and check the Sport Integrity app before using any supplement, including ours.

Four GUMO creatine gummies give you 5g of creatine monohydrate.

A note on bias: GUMO makes creatine gummies, so we have an interest in creatine's reputation. That's why every claim in this guide links to its source, including the ones about supplement contamination.

Just creatine, tested every batch. Four GUMO Creatine Gummies give you 5g of creatine monohydrate with no sugar, and every batch is lab tested in Australia with the results published. Rated 4.9 stars from 500+ reviews.

Shop GUMO creatine gummies →

Is creatine as bad as steroids?

No, and the safety records aren't comparable. Healthdirect lists the long-term risks of anabolic steroids as including liver damage, high blood pressure, heart attack, stroke and depression, plus effects like infertility and shrunken testicles in men and a deeper voice and facial hair in women. Creatine's common side effects are mild water weight and an upset stomach if you take a large dose in one go. The ISSN considers creatine safe for healthy people at recommended doses. For the full picture, see creatine side effects.

"Patients often ask me whether creatine is safe, but I haven't had anyone ask if it's a steroid. Most people already understand it's a supplement, not a hormone. My usual advice is the same as for any supplement: choose a product that's batch tested, and stick to the recommended dose."

Koji Wang, Physiotherapist, Balwyn Physio

Frequently asked questions

Is creatine a drug?

No. In Australia, creatine is sold as a food supplement, not a medicine. It's a compound your body makes naturally and gets from food, and supplements simply provide more of it.

Is creatine natural?

Creatine itself is natural: your body makes it, and it's in meat and fish. Supplement creatine is made synthetically in a factory, but it's the same molecule. Read more in is creatine vegan.

Will creatine make me fail a drug test?

Creatine isn't a banned substance, so pure creatine won't. The risk is a supplement contaminated with something that is banned. If you're tested, choose batch-tested products and check them in the Sport Integrity app.

Is creatine safe for teenagers?

The Antonio review concluded that, based on limited evidence, creatine appears safe and potentially beneficial for children and adolescents. In Australia, though, creatine sold as a sports food must carry the warning required by Food Standards Australia New Zealand: not suitable for children under 15 or pregnant women, and only to be used under medical or dietetic supervision. Teens should talk to a parent and their GP first.

Does creatine work like steroids?

No. Steroids act on hormone receptors to build muscle directly, even without exercise. Creatine helps your muscles produce energy for short, hard efforts, so its benefits come mainly from the extra training it allows.

Is creatine a protein?

No. Harvard Health points out it isn't even one of the 20 amino acids that make up proteins. Your body builds it from three of them. You'll see it called a "micro-protein" online, but that isn't accurate either.

Is creatine a pre-workout?

No. Creatine isn't a stimulant and works by building up in your muscles over weeks, so timing around a workout matters little. Many pre-workout products do contain creatine alongside caffeine and other ingredients, and Sport Integrity Australia's survey found pre-workouts were among the products most likely to be contaminated with banned substances.

Is it OK to take creatine every day?

Yes. The International Society of Sports Nutrition recommends 3 to 5g a day for healthy adults, and daily use is how muscle stores stay topped up. See how much creatine per day for dosing.

Why do doctors not recommend creatine?

Many do discuss it, especially for athletes and older adults. Doctors may be cautious if you have kidney disease or take certain medications, so check with your GP if that applies. For healthy adults, sports bodies like the AIS consider it a well-supported supplement.

We keep this guide up to date

22 October 2026: guide published. Reviewed by Koji Wang. Updated the same day with FAQs on protein, pre-workouts, daily use and the Australian label warning for under-15s.

23 October 2026: every source re-checked against the original study, a few figures corrected, and new questions answered. Reviewed by Koji Wang.

Sources

About the author
Roy Anderson is the founder of GUMO and has taken creatine daily for over three years. He started GUMO after seeing brand after brand sell creatine gummies with little or no creatine inside. Every batch of GUMO Creatine Gummies is third party lab tested in Australia, with the results published. Read more about Roy →

Roy AndersonGumo Performance