Creatine? Is that not a tub of powder in a gym locker room, mostly on the men’s side? That was the idea that had long been promoted.
But now there are pastel-colored tubs, gummies, and “women’s special” formulas. You may have seen it on social media, presented as a must-have after 40.
And for good reason, creatine is neither a hormone nor a performance-enhancing drug: it is a small energy reserve that our body produces itself, and that is also found in meat and fish. So it is not reserved for any one gender.
Yet when I dug into the studies, a scientific review found that only 9% of creatine studies were conducted exclusively in women. A good part of what is told to women therefore comes from… trials conducted in men.
So, what can we really expect from creatine’s effects in women?
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Why take an interest in creatine in women?
Creatine is naturally present in our bodies. It is produced by the liver, kidneys, and pancreas, and obtained from meat and fish.
Its role? To serve as a readily available energy reserve by very quickly replenishing ATP, the molecule that provides energy to our cells. That is why nearly 95% of our reserves are found in the muscles.
So why focus on it in women in particular? Because women and men do not start with the same stores.
According to a 2025 review, women would produce about 20% less creatine than men, and consume 30 to 40% less through diet.
Added to that are the stages of hormonal life: menstrual cycle, pregnancy, and then menopause, where the drop in estrogen accelerates the loss of muscle and bone mass.
So I think it is only natural to wonder whether creatine supplementation might be even more relevant for women. Now, does the research bear that out?
Weight gain, hair, hormones: the misconceptions about creatine
“Creatine makes you bloat”
Before talking about the benefits, I would like to debunk three misconceptions that are still very persistent.
This is probably the most common concern, and it is not entirely unfounded: creatine does draw water.
Where is this water stored? In a randomized controlled trial, 30 women took 20 g of creatine per day for 5 days, or a placebo. The water was mainly stored inside the muscle cells, and their weight did not change significantly.
In other words, this water is not stored under the skin and is not fat. It will not make you look puffy and “fluffy”.
“Creatine causes hair loss”
This rumor comes from a single 2009 study on rugby players, never confirmed, which reported an increase in DHT, a hormone linked to hair loss.
In 2025, a randomized controlled trial lasting 12 weeks, at 5 g per day, looked directly at the question. The researchers observed no difference in DHT, nor in hair density or thickness.
One nuance, however: I found no study on this subject in women. But there is no need to worry today; this misconception is not based on any solid data.
“Creatine throws hormones out of whack”
No study shows any effect on estrogen or progesterone, and no interaction with the pill has been reported.
Effects on muscle mass and bone density after menopause?
Effects on muscles, provided you train
This is the most studied benefit, but the results are more nuanced than is often reported.
In a meta-analysis of 35 trials, creatine provides women with only about 0.3 kg more lean mass than placebo: this was not considered significant.
Does that mean it doesn’t work in women? Not necessarily: there are fewer trials conducted in women. It is therefore difficult to detect a modest effect with certainty.
After menopause, however, the data are more encouraging. A 2026 meta-analysis involving 608 women found +0.37 kg of lean mass and +7.5 kg on the leg press, especially from 5 g per day, in combination with strength training.
Personally, I find this result encouraging, as long as it is read correctly: creatine gives strength training a boost, it does not replace it.
Bone density: a hope not yet confirmed
In 2015, a randomized controlled trial followed 47 postmenopausal women for one year. All followed the same supervised strength-training program, three times a week, with creatine or placebo.
At the femoral neck, bone density decreased in both groups, but less with creatine: 1.2% versus 3.9% with placebo.
But the final sample included only 33 participants. Here again, the sample is far too small. The team therefore wanted to confirm this with a 2-year trial in 237 women. This time, no effect on bone density.
The subject deserves further research, but as of today, creatine cannot be presented as an aid against osteoporosis.
What dose and what precautions?
If you want to try it, I recommend keeping it simple. In most studies, women take 3 to 5 g of creatine monohydrate per day.
Personally, I don’t see the point of paying more for a “women-specific” formula: they are based on no evidence of their own. Their pastel packaging changes nothing about what’s in the jar.
As for tolerance, the studies are rather reassuring: no serious adverse effect has been found in women, apart from a few digestive discomforts.
On the other hand, I do not recommend taking it in case of:
- pregnancy or breastfeeding, due to a lack of data in women
- history of kidney disease or kidney failure
- treatment toxic to the kidneys
- adolescence, without medical advice
And if you are on treatment, talk to your doctor before getting started.
My opinion: an ally for strength training, not a “must-have for women”
If you were hesitant to try creatine for fear of bloating, losing your hair, or disrupting your hormones, you can be reassured: nothing in the studies points in that direction.
Its main benefit is muscle strength, especially after menopause and provided you train. For bones, however, the results are not there.
Ultimately, creatine will not do the work for you. What really matters is your strength training sessions two to three times a week, a plate that provides enough protein, calcium, and vitamin D, and good nights of sleep. Creatine can complement that foundation, never replace it.
Creatine remains a dietary supplement: don’t hesitate to seek support from a healthcare professional.
Sources and scientific studies
- by Guingand DL et al. (2020). Risk of Adverse Outcomes in Females Taking Oral Creatine Monohydrate: A Systematic Review and Meta-Analysis. Nutrients, 12(6):1780.
- Smith-Ryan AE et al. (2025). Creatine in women’s health: bridging the gap from menstruation through pregnancy to menopause. Journal of the International Society of Sports Nutrition, 22(1):2502094.
- Moore SR et al. (2023). A Randomized Controlled Trial of Changes in Fluid Distribution across Menstrual Phases with Creatine Supplementation. Nutrients, 15(2):429.
- Lak M et al. (2025). Does creatine cause hair loss? A 12-week randomized controlled trial. Journal of the International Society of Sports Nutrition, 22(1):2495229.
- Delpino FM et al. (2022). Influence of age, sex, and type of exercise on the efficacy of creatine supplementation on lean body mass: A systematic review and meta-analysis of randomized clinical trials. Nutrition.
- Naddafha S, Antonio J, Kreider RB, Stout JR (2026). Creatine monohydrate for lean mass, strength, and bone density in postmenopausal women: a systematic review and meta-analysis. Journal of the International Society of Sports Nutrition, 23(1).
- Chilibeck PD et al. (2015). Effects of Creatine and Resistance Training on Bone Health in Postmenopausal Women. Medicine & Science in Sports & Exercise, 47(8):1587-1595.
- Chilibeck PD et al. (2023). A 2-yr Randomized Controlled Trial on Creatine Supplementation during Exercise for Postmenopausal Bone Health. Medicine & Science in Sports & Exercise.
