Creatine
Also known as Creatine monohydrate
Creatine helps regenerate ATP, the cell's rapid energy currency. It is the most researched sports supplement, with robust evidence for strength and power, and growing evidence for cognitive benefits, especially under sleep deprivation or in older adults.
Benefits
Increases strength and power
StrongReliably improves high-intensity performance and training adaptations.
Supports muscle growth
StrongEnhances gains in lean mass when combined with resistance training.
May support cognition
PreliminaryEmerging evidence for benefits to memory and mental fatigue.
Pros & cons
Pros
- Exceptional safety and evidence
- Very inexpensive
- No loading phase required
Cons
- Minor initial water-weight gain
- Non-responders exist
Side effects
Water retention
Causes a small increase in intracellular water, often seen as minor weight gain.
GI upset if over-dosed at once
Large single doses can cause bloating; split doses to avoid.
Insomnia in sensitive individuals
A small portion of users report difficulty sleeping, likely because creatine boosts ATP and mental energy, which can lower subjective sleep pressure.
How to take it
Typical dose
3–5 g of monohydrate per day
Timing
Any time daily; consistency matters more than timing. If you notice sleep disruption, take it earlier in the day.
Tip: A loading phase is optional; daily 5 g saturates muscles within a few weeks.
Forms: which one to choose
The main forms of Creatine compared by absorption, tolerability, and best use.
Creatine Monohydrate
Most popularHigh absorptionBest for: Everyone, the default choice for performance and cognition · The gold standard, most studied, cheapest, and fully proven
Read about Creatine MonohydrateCreatine HCL
High absorptionBest for: People who experience bloating or GI issues with monohydrate · Smaller dose needed (~1–2 g); no loading phase; mixes easily
Read about Creatine HCLWhat the research says
[1]Creatine for strength and power
StrongDecades of trials confirm improvements in strength, power, and lean mass with resistance training.
Sports-science reviews · 2017PubMed[2]Creatine and cognition
PreliminaryEarly studies suggest cognitive benefits, particularly under stress such as sleep deprivation.
Neuroscience trials · 2018PubMed[3]ISSN position stand on creatine supplementation
StrongThe International Society of Sports Nutrition concludes creatine monohydrate is the most effective and safe ergogenic supplement for high-intensity work and lean mass.
J Int Soc Sports Nutrition · 2017PubMed[4]Creatine safety and long-term supplementation
StrongLong-term use shows no adverse effects on kidney or liver function in healthy adults across controlled trials.
Sports-medicine reviews · 2021PubMed[5]Creatine loading, dosing, and muscle saturation
StrongDaily 5 g saturates muscle creatine within a few weeks; a loading phase speeds saturation but is optional.
Sports-science trials · 2019PubMed[6]Creatine for muscle preservation in older adults
ModerateImproves lean mass and strength gains when combined with resistance training in aging adults.
Aging & muscle meta-analyses · 2020PubMed
Watch the breakdown
Our evidence review of Creatine in video form — same research, ten minutes.
How Creatine interacts
Synergies, absorption effects, and cautions between Creatine and other supplements in the matrix.
Creatine and its direct connections · click a node to open its guide
Creatine synthesis consumes a large share of the body's methyl groups; TMG helps replenish methylation capacity and both are studied for strength and power.
Compare the pairingA popular pre-workout pairing: citrulline for blood flow and pumps, creatine for power and strength output.
Compare the pairingGlycine is one of the three amino acids the body uses to synthesise creatine endogenously.
Compare the pairingCommon in post-workout recovery stacks; glutamine for gut integrity and creatine for muscle energy replenishment.
Compare the pairingBoth are cell-volumizing compounds used to support exercise performance and muscle hydration.
Compare the pairingBoth support cellular ATP production in muscle and brain, complementing each other for energy and performance.
Compare the pairingSome early data hinted caffeine might blunt creatine's effects; evidence is mixed and any effect is likely minor.
Compare the pairingFrequently asked questions
What is Creatine used for?
Creatine is most commonly used for strength, power, and cognition. Reliably improves high-intensity performance and training adaptations.
How much Creatine should I take?
A typical dose is 3–5 g of monohydrate per day. A loading phase is optional; daily 5 g saturates muscles within a few weeks. Start at the lower end and confirm the right dose for you with a healthcare professional.
When is the best time to take Creatine?
Recommended timing: Any time daily; consistency matters more than timing. If you notice sleep disruption, take it earlier in the day..
What are the side effects of Creatine?
Reported side effects include water retention, gi upset if over-dosed at once, and insomnia in sensitive individuals. Causes a small increase in intracellular water, often seen as minor weight gain.
More Amino Acids
5-HTP
A direct serotonin precursor for mood and sleep, use with care.
Collagen
The structural protein for skin, joints, and connective tissue.
Glucosamine
An amino sugar that supports cartilage and joint comfort.
Supports these foundations
Creatine can help reinforce these lifestyle foundations, but it works best on top of them, not in place of them.