STUDresearch · Non-peptide
Creatine monohydrate
Also known as
creatine · CrM · creatine monohydrate · Creapure (branded monohydrate / quality shorthand) · micronized creatine monohydrate · creatine HCl / hydrochloride · Kre-Alkalyn / buffered creatine · creatine ethyl ester (CEE; historical form) · creatine nitrate · creatine magnesium chelate · phosphocreatine (PCr; stored form in muscle) · Cr (abbreviation in papers/forums)
Community talk. May be wrong. Not medical advice. Not a protocol. Not for human or animal use.
Whole-body — you eat it, it loads muscle everywhere. Not a local inject.
Daily monohydrate with or without prior loading; no-load discussions describe slower store accumulation over about 3–4 weeks.
Oral monohydrate for 5–7 days, commonly divided. These are optional loading descriptions, not amounts per serving; large single amounts attract more GI complaints.
Daily maintenance in some larger-athlete discussions and selected resistance-training or bone studies; not one default amount for every person.
Half-life & effect duration
- Half-life in the body
- One oral studyAbout 30 minutes in plasma
- Another oral studyAbout 172 minutes — roughly 3 hours in plasma
- Felt duration people report
- During continued useTraining or muscle-fullness changes; no timed buzz
- After stoppingUnchanged in one account; fatigue after about a week in another
- Muscle storesUsually decline over about 4–6 weeks; some summaries give 4–8 weeks
Tap a line to jump into the full notes. Research only — may be wrong.
Timing context & sources
Half-life in the body
Small oral studies reported about 30 minutes or 172 minutes for plasma elimination, using different study designs.
Muscle stores are a different clock: one study found the added stores declined over about a month after stopping.
The two plasma estimates are not a universal range or dose-duration rule. Thirty-day tissue decline is not a 30-day half-life.
- Vanakoski et al.: creatine plasma kinetics (opens in a new tab)Original author-uploaded paper, abstract: seven trained athletes, repeated oral creatine, plasma terminal half-life 172 minutes; PMID 9629989.Small short crossover experiment. The paper's negative performance result and plasma measurement do not measure long-term muscle stores.
- Jäger et al.: comparison of creatine forms (opens in a new tab)Methods: six healthy participants, oral monohydrate/citrate/pyruvate crossover. Results following Table 2: mean elimination half-life 30 minutes.Small model-based study with limited absorption sampling and industry involvement; not a universal individual clearance prediction.
- Hultman et al.: muscle creatine loading in men (opens in a new tab)1996 abstract, second sentence group: elevated muscle concentration declined to baseline about 30 days after stopping without maintenance; 31 men.Abstract reviewed, not full methods. Muscle-store decline is a different endpoint from plasma half-life and subjective performance.
Felt duration people report
People describe ongoing training or fullness changes, not a timed buzz. After stopping, one felt unchanged; another noticed fatigue after about a week.
These are changes across continued use or stopping, not a measured number of useful hours after a scoop.
Selected contrasting accounts cannot establish frequency, dependence, or cause; sleep and training can affect the same experiences.
- Stopping creatine — differing first-person accounts (opens in a new tab)CookingWithTacos reply: fine for about a week after stopping, then fatigue; Yerabc1 reply: no difference.Uncontrolled individual accounts, not withdrawal incidence or proof that creatine caused fatigue. Unrelated supplement and pregnancy advice is not adopted.
What people say
- Work capacity: Better repeat-sprint ability, denser sets, and short-rest volume once muscle stores are full. forum
- Form hierarchy (community consensus): Monohydrate > marketing alternatives for most people; HCl/buffered sold for GI/solubility, CEE largely discredited. forum
- Strength & power: Meta-analyses and decades of trials link CrM + resistance training to better 1RM, power output, and high-intensity strength vs placebo. trial
- Performance magnitude talk: Loading literature often cites ~5–10% exercise-capacity improvements and ~20–40% rises in intramuscular creatine once saturated — ranges vary by protocol, baseline stores, and test. trial
- Lean mass / fat-free mass: Frequently more FFM gain vs placebo with training; part water, part training-volume enablement over weeks–months. trial
- Recovery markers: Some trials report modest reductions in soreness or damage markers after hard bouts; not a magic anti-DOMS drug. trial
- Low meat / vegetarians / vegans: Often larger relative muscle-creatine and performance/memory responses because dietary creatine is lower. trial
- Cognition under stress: Signals for memory, attention, or fatigue resistance under sleep loss, hypoxia, aging, or low baseline brain creatine — weaker/inconsistent as a daily nootropic in young healthy omnivores. trial
- Brain dosing interest: Some brain MRS / clinical work uses ~10–20 g/day (sometimes multi-week) to raise brain creatine more reliably than standard 3–5 g gym maintenance. trial
- Acute high-dose cognitive lore: Single large oral loads (e.g. ~20–35 g in stress/sleep-deprivation designs) appear in research and forum discussion — not the default gym protocol. trial
- Women + RT: Pre- and postmenopausal women are discussed for lean mass and strength when creatine is paired with resistance training; “women don’t need creatine” is widely treated as outdated bro lore. trial
- Bone (with training): Mixed DXA BMD results; some trials (~0.1–0.14 g/kg/day + RT) report preserved femoral neck BMD or better bone geometry vs placebo+RT, while other long low-dose or non-RT trials are null. trial
- Older adults / sarcopenia adjacency: Used with progressive resistance training for strength and lean-mass support; dose talk often 3–5 g/day or ~0.1 g/kg/day. trial
- Depression / brain energy research: Exploratory work (including dose-ranging frontal PCr measures) discusses higher brain creatine correlating with better mood scores — not a first-line antidepressant claim. trial
Doses people talk about
- Creapure / micronized preference: Community quality shorthand for German-sourced monohydrate and finer mesh (mixes easier, same molecule). forum
- Creatine HCl label culture: Vendor charts often claim ~1–2 g servings because of higher water solubility; head-to-heads do not establish superiority to equal creatine from monohydrate. forum
- Gummy math: Many products list ~1–5 g “per serving” but require multiple gummies; third-party testing chatter has found some brands far under label claim — powder remains the reference form. forum
- Classic loading (ISSN-style / trials): ~20–25 g/day creatine monohydrate for 5–7 days, almost always split (e.g. 5 g × 4, roughly every ~4 hours). trial
- Load by body weight: ~0.3 g/kg/day for 5–7 days (e.g. ~21 g/day at 70 kg; ~25 g/day near 82 kg / 180 lb). trial
- Maintenance (default gym): ~3–5 g/day monohydrate after load, or as the only protocol long-term. trial
- Maintenance by body weight: ~0.03 g/kg/day is often cited after a load; this body-weight amount is not numerically interchangeable with a fixed 3–5 g/day band. trial
- No-load path (Hultman-class finding): ~3 g/day for ~28 days reaches similar muscle creatine increase as ~20 g/day for ~6 days; practical community translation is ~3–5 g/day for ~3–4 weeks. trial
- Higher training/body-size talk: Some larger athletes and research protocols use ~5–10 g/day maintenance or ~0.1 g/kg/day with resistance training. trial
- 0.1 g/kg/day band: Appears in hypertrophy/adaptation and postmenopausal + RT discussions (e.g. ~7–10 g/day for many adults depending on body mass). trial
- Brain / clinical interest doses: Studies and reviews frequently use ~10 g/day or ~20 g/day for days to weeks (sometimes months in clinical pilots) to raise brain creatine — not interchangeable with default 5 g gym lore. trial
- Acute cognitive stress loads: Research designs have used single-day large doses (e.g. ~20 g; some sleep-deprivation work discussed around ~0.35 g/kg or ~25–35 g) — experimental, GI-heavy, not standard maintenance. trial
- Split-load GI hack: Spreading the same 20 g as many small doses (e.g. 1 g every ~30 min in one study design) improved retention vs classic 4 × 5 g and may cut GI loss — niche protocol talk. trial
- Single-bolus ceiling talk: Boluses ≳~10 g at once are commonly linked to diarrhea/stomach distress; load splits stay ≤5–10 g per serving in practice. trial
- With carbs / protein: Co-ingestion with carbohydrate and/or protein can raise insulin-mediated uptake (~25% retention talk in reviews); optional, not mandatory if daily consistency is solid. trial
- Buffered / Kre-Alkalyn culture: Marketed as lower-dose, pH-stable, less conversion to creatinine; controlled data generally fail to beat monohydrate. trial
- CEE historical doses: Old marketing used monohydrate-like or lower doses; human data show poor muscle loading and high creatinine generation — largely abandoned by evidence-minded users. trial
- Dietary baseline: Omnivores get roughly ~1–2 g/day from food (highly diet-dependent); vegans/vegetarians near zero from diet, which is why relative response is often larger. trial
- Framing: Discussed literature and community ranges only — research/education framing, not medical advice or prescriptions. forum
How it may feel
- Days 1–7 (loading ~20–25 g/day): Common +1–3+ lb scale jump (intramuscular water); fuller pumps; GI risk highest if boluses are large. forum
- Days 1–7 (3–5 g, no load): Little subjective feel; saturation is slower (~3–4 weeks). forum
- Week 1 scale anxiety: Many confuse water-driven weight with fat; forums emphasize tape/strength over scale during load. forum
- Weeks 2–4 (after load or continuous low dose): Stores filling/full; denser pumps, slightly better top sets and volume tolerance for responders. forum
- Month 1–3: Strength/composition gains track training quality + full stores, not a stim “buzz.” forum
- Month 3+ continuous: Background support; sensation plateaus; people forget they take it. forum
- Training feel: More “another good rep / denser session” than acute energy like caffeine. forum
- Non-responders / low responders: Some see little change — already high dietary creatine, genetics/transporter variation, or weak progressive training. anecdote
Around the dose
- Clock: Daily. Timing is weakly argued — post-workout vs with a meal vs “whenever you remember.” Consistency wins the threads. forum
- Training context: Lifting performance is a common way posters judge creatine, alongside “why no difference?” reports that mention taking it without training. forum
- Water / food: Posters describe pairing creatine with water or a normal meal, not a shared secret timing window. forum
- Rest days: Daily-use discussions include taking it on rest days; the loading-versus-daily debate receives more attention than exact clock time. forum
Cycles people discuss
- Default modern practice: Daily monohydrate indefinitely once stores are up — not a classic on/off “cycle” drug. forum
- No-load continuous: 3–5 g from day one; full muscle saturation ~3–4 weeks — preferred when avoiding fast water gain or load GI. forum
- Time off reasons: Photos, weight-class sports, GI reset, cost, or curiosity — not required for kidney “detox” in healthy-user myth-busting literature. forum
- Restart talk: Accounts describe another loading phase for a faster return to fuller stores, or resuming daily 3–5 g while waiting for fullness/performance to return. These are reported practices, not a restart instruction. forum
- Contest / cut behavior: Some keep 3–5 g through cuts for training quality and accept water; others pause pre-weigh-in then reload. forum
- Load → maintain: Optional 5–7 day load, then 3–5 g (or body-weight maintenance) through training mesocycles. trial
- Washout if stopping: Expect gradual store decline over ~4–6+ weeks; performance/feel changes lag the last scoop. trial
- Not blast/cruise: Framing creatine like a 4-week SARMs cycle is mismatched to how stores work. forum
- Long-term use: Multi-year continuous 3–5 g discussion is common; healthy-user safety literature is extensive relative to most gym supplements. trial
Timing
- Timing debate (pre vs post): Pre- vs post-workout differences are small next to total daily consistency; some preference for peri-workout + carbs/protein, many just pick a habitual time. forum
- Missed day: One skipped scoop rarely empties stores; multi-day gaps matter more than clock-perfect timing. forum
- Plasma elimination: The older ~2.5–3-hour shorthand is consistent with a small 1998 study reporting 172 minutes after repeated oral creatine. A separate 2007 oral-form comparison estimated about 30 minutes using a different model and design. These are not a universal range, muscle-store washout or a felt-duration clock. trial
- Blood window: Concentrations often stay elevated for ~3–4 hours after a typical oral serving, facilitating tissue uptake. trial
- Why daily still matters: Muscle (and slower brain) stores are the reservoir; modest daily intake offsets ongoing use/excretion after plasma clears. trial
- Muscle saturation timelines: Load ~5–7 days to high stores; ~3 g/day ~28 days (or ~3–5 g/day ~3–4 weeks) to similar muscle increase without load. trial
- Intramuscular rise: Loading literature commonly cites ~20–40% increases in muscle creatine content in responders. trial
- Washout / return to baseline: Elevated muscle creatine typically trends down over ~4–6 weeks (sometimes discussed up to ~4–8 weeks) after stopping. trial
- With food / insulin narrative: Carbs ± protein can enhance uptake via insulin; coffee/black coffee alone is still widely used as a vehicle. trial
- Caffeine co-ingestion: Modern view is they can be taken together (independent mechanisms; common in pre-workouts). Older antagonism lore still circulates but is not treated as a hard ban. trial
- Brain lag: Brain creatine rises less readily than muscle; short low-dose protocols often fail to move cognition in healthy young adults. trial
- Excretion: Unused creatine appears in urine; high loads increase urinary creatine/creatinine — relevant to lab interpretation, not automatic kidney injury. trial
More on what it is
- Why people use it: Cheap, extensively studied ergogenic for strength, power, lean mass, and dense training; now also a biohacking/longevity and cognition staple. forum
- Not this: Not a steroid, not a stimulant, not a fat-burner, not “fake muscle.” Early scale weight is largely intramuscular water + fuller stores, not pure new myofibrillar protein. forum
- Form default: Monohydrate (Creapure-class / micronized powder) still wins on cost, solubility-for-price, and trial count vs HCl, buffered, ethyl ester, nitrate, and gummies. forum
- What it is: Naturally occurring guanidino compound made in liver/kidney and eaten in meat/fish; ~95% of body stores sit in skeletal muscle as free creatine + phosphocreatine. Creatine monohydrate (CrM) is the best-studied oral form. trial
- Mechanism (simple): Phosphocreatine regenerates ATP during short high-intensity efforts (seconds-to-tens-of-seconds); also draws water into muscle cells (cell volumization) and may support high-energy phosphate status under metabolic stress. trial
- Evidence honesty: One of the strongest human-supplement evidence bases for high-intensity performance and lean mass with training; cognition, clinical, and bone outcomes are real research areas but thinner/mixed than gym performance data. trial
Stacks
- Protein + creatine: Default gym stack — whey/casein/food protein with daily CrM. forum
- Beta-alanine + creatine: Classic high-intensity duo (carnosine buffering + phosphocreatine); beta-alanine often ~3–6 g/day split for paresthesia, creatine 3–5 g. forum
- Caffeine + creatine: Ubiquitous in pre-workouts; acute stimulant + chronic store support. Older “caffeine cancels creatine” lore is largely downplayed if daily creatine is consistent. forum
- Citrulline (malate) + creatine: Pump/work-capacity stack; citrulline often ~6–8 g pre, creatine daily. forum
- Betaine (TMG) + creatine: Methyl-donor / body-comp pre-workout pairing in multi-ingredient formulas. forum
- HMB + creatine: Lean-mass / anti-catabolic marketing stacks; evidence quality varies by HMB form and training status. forum
- Electrolytes / hydration: Water + sodium/potassium/magnesium when chasing pumps or managing cramp myths. forum
- Taurine + creatine: Two cheap performance/longevity-adjacent staples often co-listed. forum
- Longevity box: Creatine next to protein, vitamin D, omega-3s, magnesium; sometimes NMN/NR or taurine in biohacker stacks. forum
- Pre-workout kitchen sink: Caffeine + beta-alanine + citrulline + creatine + B vitamins — multi-ingredient noise makes isolation hard. forum
- Underdosed PWO warning: Many pre-workouts put 1–2 g creatine per scoop — users often add monohydrate to hit 3–5 g total. forum
- Carbs + creatine (peri-workout): Uptake/insulin narrative; juice or shake as vehicle during load. trial
Storage notes
- Oral supplement forms: Creatine here is discussed as oral monohydrate powder, capsules, tablets, gummies and other oral forms, not a peptide vial. STUDresearch does not provide reconstitution, diluent volumes or syringe-unit charts. forum
- Storage/form stability: General discussion keeps unopened dry products cool, dry and away from light, with product-label requirements controlling after first use. Ready-to-drink products and long-stored solutions have separate heat/time and creatine-to-creatinine stability concerns; there is no universal after-opening rule for every form. forum
Watch for
- Empty-stomach sensitivity: Minority get stomach noise even at 3–5 g; food or split dosing is the usual community fix. anecdote
- Heat illness lore: Old sports bans and dehydration fears have been walked back as evidence accumulated; still hydrate for the sport, not because creatine uniquely dehydrates. forum
- Weight-class sports: Water-driven mass can matter for cutting weight — planning off-weeks or no-load approaches is common. forum
- Product quality / underdosing: Cheap powders and especially gummies have under-label and degradation scandals in consumer testing chatter; third-party tested monohydrate powder is the risk-reduction default. forum
- Liquid / RTD stability: Creatine in solution, heat, and long shelf life favor conversion toward creatinine — dry powder remains preferred for dose integrity. forum
- Who talks to a clinician first (community/clinical caution culture): Known kidney disease, clinicians watching creatinine closely, pregnancy/breastfeeding data gaps, and complex polypharmacy. forum
- Water weight / bloat: Early intracellular water retention; scale up commonly ~1–3+ lb with loading, less dramatic with 3–5 g only. trial
- GI upset: Nausea, cramping, diarrhea, urgency — strongly dose-and-bolus related; worst with ≳10 g single servings or aggressive loads. trial
- Serum creatinine lab confusion: Supplementation can raise creatinine without true GFR collapse — eGFR equations may look worse; context matters before panic. trial
- Kidney myth vs evidence: At recommended doses, controlled research does not show kidney damage in healthy people; preexisting kidney disease is a separate caution (medical supervision talk). trial
- Hair-loss / DHT debate: One 2009 rugby study reported DHT rise during load/maintain; most follow-up work and ISSN-style reviews do not support a clear causal hair-loss effect. A 12-week RCT measuring hormones and hair outcomes found no creatine vs placebo difference on DHT or hair parameters. Debate continues on forums. trial
- Cramps / dehydration myth: Popular lore that creatine causes cramps or dehydration is largely unsupported in sports literature; hydration still encouraged with training. trial
- CEE-specific: Ethyl ester associated with rising creatinine and poor muscle loading vs monohydrate — form risk, not monohydrate class risk. trial
- Not risk-free framing: Even with a strong safety record at common doses, more is not automatically better; load GI and lab misreads are the practical downsides most people hit. forum
