You know the person's name, but it will not arrive. You open a browser tab and forget what you meant to search. Halfway through a sentence, the exact word disappears.
For many women, that experience is quickly recognised as “brain fog.” It can feel alarming, especially when it arrives alongside poor sleep, changing cycles or other perimenopausal symptoms.
Creatine is now being promoted as a solution. There is a plausible scientific reason to study it, and one small direct trial has reported encouraging results. But we do not yet have enough evidence to say creatine treats menopause-related brain fog.
Answer first
Creatine plays a role in brain energy metabolism. Early research in perimenopausal and menopausal women is interesting, but direct evidence is currently based on very small studies.
The most relevant randomised trial involved only 36 women and used creatine hydrochloride and creatine ethyl ester rather than standard creatine monohydrate. Its results should be treated as a reason for more research, not proof that any creatine product will resolve brain fog.
Why researchers are interested
The brain has a high and continuous demand for energy. The creatine-phosphocreatine system helps buffer that demand by supporting the regeneration of ATP, the energy currency used by cells.
Researchers have therefore studied creatine under conditions in which brain-energy demand or availability may be challenged, including sleep deprivation, ageing and some mental-health conditions.
Hormonal changes across the menopause transition may also influence brain metabolism. That creates a scientifically plausible question:
Could increasing creatine availability help the brain cope with periods of higher metabolic stress?
Plausibility is the beginning of a study, not the end of the answer.
The direct menopause trial
The 2025 CONCRET-MENOPA randomised controlled trial assigned 36 apparently healthy perimenopausal and menopausal women to one of four groups for eight weeks:
- 750 mg/day creatine hydrochloride
- 1,500 mg/day creatine hydrochloride
- 800 mg/day combined creatine hydrochloride and creatine ethyl ester
- placebo
Researchers assessed cognition, participant-reported symptoms, biochemical measures and brain creatine concentrations. The medium-dose creatine-hydrochloride group improved on selected cognitive outcomes, including reaction time, and showed an increase in measured brain creatine.
That sounds compelling until the limitations are placed beside it:
- only 36 participants were divided across four groups
- the intervention lasted eight weeks
- multiple outcomes were assessed
- the products were not creatine monohydrate
- the results have not yet been established in larger independent trials
The correct “aha” is not that brain fog has been solved. It is that scientists have finally started testing the question directly.
Why the form of creatine matters
HYDRAX CREATINE is creatine monohydrate. The CONCRET-MENOPA trial studied creatine hydrochloride and creatine ethyl ester at relatively low doses.
We cannot assume that an outcome produced by one formulation and protocol automatically substantiates claims for another. Creatine monohydrate has the strongest overall research history for sports performance and muscular outcomes, but menopause-specific cognitive evidence for monohydrate remains limited.
This is exactly why headlines such as “creatine cures menopause brain fog” are misleading.
What other research tells us
A 2025 narrative review concluded that creatine may have applications for cognition and mood across women's life stages, while also stating that evidence in perimenopausal women remained limited.
A small 2025 quasi-experimental study involving 15 peri- and postmenopausal participants reported changes in selected strength and other outcomes after creatine and strength training. With no large randomised sample, it cannot establish that creatine caused changes in cognition, sleep or mood.
An exploratory 2026 study examined brain creatine, estradiol and neurocognitive complaints in only 12 perimenopausal women. Associations can help generate hypotheses, but they do not show that taking creatine will improve symptoms.
An Australian feasibility trial is now investigating creatine in postmenopausal women reporting cognitive changes. Its purpose is to inform larger research. It does not yet provide an answer.
Brain fog deserves more than a supplement assumption
Difficulty concentrating can occur during the menopause transition, but it can also be influenced by sleep disruption, stress, mood, iron status, thyroid conditions, medication, under-fuelling and other health issues.
If cognitive changes are new, worsening, affecting work or daily life, or accompanied by other concerning symptoms, seek medical assessment. Do not assume every concentration problem is “just menopause,” and do not use a supplement to avoid investigating it.
Where creatine may still fit
Creatine monohydrate can be considered for its better-established role in supporting training, particularly resistance training and repeated high-intensity work.
If cognitive benefits are confirmed in future, that would strengthen the case. It should not be the promise used to sell the product today.
This distinction is important:
- Reasonable: “I use creatine to support my training, and researchers are studying possible cognitive applications.”
- Not established: “Creatine will fix my menopause brain fog.”
A sensible decision framework
Before starting creatine, ask:
- Am I using it to support a real training program?
- Is the product transparent about form and grams per serve?
- Am I comfortable with a possible small increase in muscle water and scale weight?
- Have symptoms that warrant assessment been properly discussed with a clinician?
- Am I expecting a modest training supplement, or a treatment it has not been shown to provide?
That final question protects you from most supplement hype.
The honest conclusion
Creatine and menopause-related cognition is a legitimate research area. It is not yet a clinically established answer to brain fog.
For now, creatine monohydrate's more defensible role is supporting training and strength. The cognition story is promising enough to watch and too early to promise.
HYDRAX CREATINE: 5 g creatine monohydrate per labelled serve, one ingredient, 60 serves. View HYDRAX CREATINE.
Research referenced
- Korovljev D, et al. The Effects of 8-Week Creatine Hydrochloride and Creatine Ethyl Ester Supplementation on Cognition, Clinical Outcomes, and Brain Creatine Levels in Perimenopausal and Menopausal Women (CONCRET-MENOPA). 2025. https://pubmed.ncbi.nlm.nih.gov/40854087/
- Smith-Ryan AE, et al. Creatine in women's health: bridging the gap from menstruation through pregnancy to menopause. 2025. https://pubmed.ncbi.nlm.nih.gov/40371844/
- Hall L, et al. Impact of creatine supplementation on menopausal women's body composition, cognition, estrogen, strength, and sleep. 2025. https://pmc.ncbi.nlm.nih.gov/articles/PMC12291186/
- Brain creatine, estradiol and neurocognitive complaints in perimenopausal women: an exploratory cross-sectional study. 2026. https://pubmed.ncbi.nlm.nih.gov/42061673/
Important information
This article provides general educational information and is not medical advice. It does not diagnose, prevent or treat brain fog, menopause, perimenopause or any medical condition. HYDRAX CREATINE is a Formulated Supplementary Sports Food under FSANZ Standard 2.9.4 and should be used with an appropriate physical training or exercise program. Not suitable for children under 15 years of age or pregnant women. It should only be used under medical or dietetic supervision. Always follow the label.
Quick answers
Does creatine help menopause brain fog?
It is being studied, but it is not proven. The only direct trial in perimenopausal and menopausal women was small and short, and it tested creatine hydrochloride and creatine ethyl ester rather than creatine monohydrate.
Why are researchers studying creatine for brain fog?
The brain uses the creatine and phosphocreatine system to manage energy demand, which gives a plausible reason to study creatine during disrupted sleep, hormonal change and high mental load.
What was the CONCRET-MENOPA trial?
An eight-week randomised trial in 36 perimenopausal and menopausal women that reported improvements in selected cognitive measures and brain creatine levels using low doses of creatine hydrochloride and creatine ethyl ester.
Should I take creatine for brain fog instead of seeing a doctor?
No. New, severe or worsening brain fog deserves proper clinical assessment. A supplement should not delay evidence-based menopause care.