The Journal

Creatine

Honest, doctor-reviewed creatine guides that separate the evidence from the myths. We cover safety, the kidney question, the hair-loss fear, and what creatine may do for the brain and healthy aging.

Creatine is one of the most studied supplements on earth, yet it is surrounded by more worry than almost any other. These guides answer the questions people ask us most, one at a time, and stay clear about who genuinely should check with a doctor first.

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Performance A measured scoop of creatine powder beside a glass of water
4 Min Read

Does Creatine Damage Your Kidneys?

Why creatine makes one blood number look higher, what 20 studies found about real kidney function, and when to check.

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Performance A measured scoop of creatine powder beside a glass of water
5 Min Read

Is Creatine Safe?

One of the most studied supplements on earth. For healthy adults at recommended doses the evidence says yes, and most feared side effects are myths.

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Performance A measured scoop of creatine powder beside a glass of water
4 Min Read

Does Creatine Cause Hair Loss?

There is no good evidence creatine causes baldness. The whole fear traces to one 2009 study that measured a hormone, not hair, and was never replicated.

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Performance A measured scoop of creatine powder beside a glass of water
5 Min Read

Creatine, the Brain, and Healthy Aging

Beyond the gym, creatine supports the brain's energy supply, may help thinking under stress or sleep loss, and helps older adults hold on to muscle.

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