Creatine has moved well beyond bodybuilding culture. It is now one of the most researched ingredients in sports nutrition, while newer studies continue to investigate its relevance to women, healthy ageing and areas beyond conventional gym performance.
That growing interest has also created an expanding vocabulary around the ingredient: micronised creatine, 200 mesh, loading phases, maintenance doses, creatine timing, creatine for women and cognitive creatine. Some of those distinctions matter. Others matter far less than the marketing suggests.
Why creatine monohydrate remains the reference form
Creatine monohydrate remains the form with the deepest research base. Creatine contributes to the body’s creatine and phosphocreatine pools, which participate in the rapid regeneration of ATP during short periods of high-intensity muscular work.
In Great Britain, authorised health-claim wording exists for creatine in relation to successive bursts of short-term, high-intensity exercise when the relevant conditions of use are met. The GB Nutrition and Health Claims Register should be treated as the regulatory reference point for commercial claims, rather than broader social-media wording. See the Great Britain Nutrition and Health Claims Register.
Do you need a creatine loading phase?
No. A loading phase is a strategy for increasing muscle creatine stores more rapidly; it is not a requirement for creatine to work.
A traditional loading approach uses a larger daily intake divided across the day for several days before moving to a smaller maintenance intake. The alternative is simply to take a consistent daily amount. The practical difference is mainly speed: loading raises stores faster, whereas a lower daily intake does so more gradually.
For most everyday users, consistency matters more than whether a loading phase is used.
Does creatine timing matter?
The evidence does not justify the very precise timing rules often presented online. Researchers have examined pre- and post-exercise intake and co-ingestion with nutrients, but there is no compelling basis for treating creatine like an acute stimulant with a narrow effective window.
For most users, regular intake is a more important variable than whether creatine is taken at breakfast, before training or immediately afterwards.
What does “micronised creatine” actually mean?
Micronisation refers to particle-size reduction. Finer particles generally disperse more readily in liquid and can reduce the gritty residue sometimes associated with coarse powders.
What micronisation does not do is turn creatine monohydrate into a fundamentally different active ingredient. A finer powder remains creatine monohydrate. Particle size is primarily a physical-format and user-experience characteristic, not proof of superior physiological efficacy.
What does “200 mesh” mean?
Mesh terminology refers broadly to particle screening: a higher mesh number corresponds to a finer material capable of passing through a finer screen. A 200-mesh creatine powder is therefore relatively fine and may disperse more smoothly.
Particle size should not be confused with purity. A high-quality creatine specification should also address identity, assay, moisture, microbiology, heavy metals, manufacturing origin, batch traceability and relevant synthesis-related impurities.
Is creatine only for men?
No. However, the female evidence base has historically been smaller and more heterogeneous than the male literature.
A 2025 systematic review of active females included 27 studies and found some positive strength, power and anaerobic outcomes, but most comparisons did not show a performance improvement versus placebo. The authors highlighted substantial heterogeneity and methodological limitations, which is important when interpreting confident marketing statements aimed specifically at women. Read the systematic review on creatine and active females.
The correct conclusion is not that creatine works identically in every population. It is that creatine research in women is expanding and should be interpreted with the same evidence standards used elsewhere in sports nutrition.
Creatine and cognition: where evidence and claims diverge
Interest in creatine and cognition has grown, but an emerging scientific hypothesis is not the same thing as an authorised commercial claim.
The UK Nutrition and Health Claims Committee assessed a proposed claim that daily creatine supplementation contributes to improved cognitive function. The resulting scientific opinion did not establish the proposed cause-and-effect relationship under the submitted conditions of use, and the claim was subsequently listed as non-authorised in the GB register. Read the UKNHCC scientific opinion.
This is a useful example of why responsible supplement communication should separate interesting research from claims that may lawfully be made in commercial communications.
Does creatine damage the kidneys?
Creatine naturally breaks down into creatinine, which is commonly measured in renal-function assessment. Supplementation can therefore affect creatinine measurements without automatically indicating kidney injury.
Research in healthy people has generally found creatine monohydrate to be well tolerated when appropriately used. A systematic review and meta-analysis in females found no significant increase in total adverse events compared with control conditions. See the safety review in females.
People with existing kidney disease, complex medical conditions or concerns about laboratory results should seek individual clinical advice before supplementing.
Does creatine cause water retention?
An increase in intracellular water can accompany increased muscle creatine storage. This is not the same as saying creatine inevitably causes undesirable fluid retention or persistent bloating.
Body-mass changes vary according to dose, loading strategy and individual response.
Is expensive creatine automatically better?
No. Premium positioning can reflect stronger sourcing, tighter contaminant limits, better manufacturing controls, finer particle size or more convenient packaging. Those can be legitimate quality differences.
But price alone does not demonstrate superior physiological efficacy. For plain creatine monohydrate, the more useful questions are:
- Is it genuinely creatine monohydrate?
- What is the assay or purity specification?
- What are the impurity and contaminant limits?
- Is there batch-level testing and traceability?
- What is the manufacturing origin?
- Is the serving amount clearly stated?
The practical conclusion
Creatine monohydrate remains unusually straightforward for an ingredient surrounded by so much discussion.
- Loading is optional.
- Timing appears less important than consistency.
- Micronisation and fine particle sizes can improve dispersibility but do not create a new biological form of creatine.
- The research base in women is growing, but results should not be oversimplified.
- Emerging cognition research should not be presented as an authorised UK health claim.
For consumers, a useful framework is simple: choose a clearly specified creatine monohydrate, understand the dose, use it consistently, and separate established evidence from emerging research and marketing language.
For more evidence-led nutrition and supplement analysis, explore the TEEKIJAY Journal or browse the TEEKIJAY range.
Sources and further reading
- Great Britain Nutrition and Health Claims Register
- UKNHCC scientific opinion on creatine and cognitive function
- Tam R et al. Does Creatine Supplementation Enhance Performance in Active Females? A Systematic Review. Nutrients. 2025.
- Risk of Adverse Outcomes in Females Taking Oral Creatine Monohydrate: A Systematic Review and Meta-Analysis.
This article is for general information only and is not medical advice. Food supplements should not replace a varied, balanced diet and healthy lifestyle. If you have a medical condition, take medication, are pregnant or breastfeeding, or have concerns about creatine use, seek advice from an appropriately qualified healthcare professional.