What Is Creatine, Really?
Before tackling the myths, let's clarify what creatine is. It's not an artificial steroid. Creatine is a natural compound made from amino acids that your own body produces in the liver, kidneys, and pancreas. You also get it from foods like red meat and fish.
Its primary job is to help your muscles produce energy for short, intense bursts of activity, like lifting weights or sprinting. By supplementing, you're essentially topping up your muscles' energy reserves, which is why it's so linked to performance.
Myth: Creatine Damages Your Kidneys and Liver
This is perhaps the most persistent myth, but it's one that has been thoroughly debunked by extensive research. The confusion often arises because creatine supplementation can slightly increase levels of creatinine in the blood, a marker used to screen for kidney problems. However, in the context of creatine use, this rise is a normal metabolic process and does not indicate kidney harm in healthy individuals. Numerous long-term studies, some lasting up to five years, have found no evidence that recommended doses of creatine cause damage to the liver or kidneys of healthy people.
Myth: Creatine Causes Hair Loss
The fear of hair loss stems from a single, small study in 2009 that found creatine increased levels of a hormone called DHT, which is linked to male pattern baldness. However, the study had limitations, didn't actually measure hair loss, and the DHT increase remained within normal clinical limits. Since then, more robust and direct research, including a 2025 randomized controlled trial, has found no significant effect of creatine on DHT levels or hair loss. The current scientific consensus is that there is no direct evidence proving creatine causes hair loss.
Myth: Creatine Leads to Dehydration and Cramping
Contrary to the myth, science suggests the opposite may be true. Creatine actually works by pulling water into your muscle cells, a process that improves hydration at a cellular level. Studies on athletes have not only failed to show an increased risk of cramping or dehydration but have in some cases found that creatine supplementation may help reduce their incidence, especially when training in the heat. While it's always important to stay hydrated, creatine itself is not a dehydrating agent.
Fact: It’s Proven for Strength and Performance
This is where creatine’s reputation is well-earned. It is one of the most effective supplements for improving strength, power, and muscle mass when combined with resistance training. It works by helping your body regenerate its main energy molecule, ATP, allowing you to perform more work during your workouts. This ability to push out an extra rep or two consistently over time leads to greater gains in muscle and strength. It also aids in quicker recovery between intense efforts.
Fact: Emerging Benefits for Brain Health
The benefits of creatine aren't limited to the muscles. Your brain is a high-energy organ that also uses creatine to fuel its cells. A growing body of research indicates that creatine supplementation can support cognitive functions like memory and processing speed, particularly in situations of stress, such as sleep deprivation. Early research has also shown potential for creatine to help with brain health in older adults and even improve memory in those with Alzheimer's disease, though more studies are needed.
